ENSONIQ DP/4+ Reference Manual
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ENSONIQ DP/4+ Reference Manual

Parallel effects processor
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p a r a l l e l e f f e c t s p r o c e s s o r
D P / 4 +
R e f e r e n c e M a n u a l
V e r s i o n 2 . 0

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Summary of Contents for ENSONIQ DP/4+

  • Page 1 p a r a l l e l e f f e c t s p r o c e s s o r D P / 4 + R e f e r e n c e M a n u a l V e r s i o n 2 .
  • Page 2 This manual is copyrighted and all rights are reserved by ENSONIQ Corp. This document may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior written consent from ENSONIQ Corp.

  • Page 3: Table Of Contents

    Build a Splitter Box to Merge Two Mono Foot Switches into One Stereo Jack..14 DP/4+ Modes......................15 Select Mode....................15 Edit Mode.....................15 System•MIDI Mode..................15 Button Names......................15 About Select Mode..................16 About Edit Mode...................17 Edit Buffer......................17 About System•MIDI Mode................18 About Presets......................19 ENSONIQ DP/4+ Reference Manual...
  • Page 4 EQ - CHORUS - DDL..................49 EQ - COMPRESSOR....................51 EQ - DDL - WITH LFO..................53 EQ - FLANGER - DDL..................55 EQ - PANNER - DDL..................57 EQ-TREMOLO-DDL...................59 EQ - VIBRATO - DDL..................61 EXPANDER......................63 FAST PITCH SHIFT....................65 FLANGER......................66 GATED REVERB....................67 ENSONIQ DP/4+ Reference Manual...
  • Page 5 One Source Input Configuration................133 Two Source Input Configuration................133 Three Source Input Configuration.................133 Four Source Input Configuration................133 Selecting a Config Preset...................134 To select a Config preset..................134 Editing a Config Preset....................134 To edit a Config Preset..................134 1 Source Config......................135 ENSONIQ DP/4+ Reference Manual...
  • Page 6 Sending MIDI Sys-Ex Messages to another DP/4+ or to a Storage Device....176 To Send DP/4+ Data Out via MIDI System Exclusive Dump........176 Receiving MIDI System Exclusive Dumps with the DP/4+........178 Problems?.....................178 Using the Preset Parameter Worksheet..............179 ENSONIQ DP/4+ Reference Manual...
  • Page 7 4-Unit RAM Presets....................192 4-Unit ROM Presets....................194 Config RAM Presets....................196 Config ROM Presets....................198 Appendix DP/4+ MIDI Implementation..................I Glossary........................III DP/4+ Algorithm Parameters..................XI Specs........................XXIII Physical......................XXIII Dimensions......................XXIII Index Charts Song Step Worksheet MIDI Program Change Map Worksheet DP/4+ Preset Parameter Worksheet ENSONIQ DP/4+ Reference Manual...
  • Page 8 Using Different Combinations of Bypassed/Un-bypassed in a Song......156 A Quick Way to get to the Preset Memory Protect display..........170 Using the Unit buttons to Select the Alphanumeric Characters for Naming Presets..172 Setting the Preset Memory Protect Switch to Prevent Accidently Erasing Presets..172 ENSONIQ DP/4+ Reference Manual...

  • Page 9: Preface

    The DP/4+ is equipped with an advanced digital signal processing system based on the ENSONIQ Signal Processor (ESP) chip. The ESP chip is designed specifically for digital audio signal processing, and in the DP/4+, four ESP chips work in conjunction with 16-bit analog-to- digital and digital-to-analog converters to provide a studio-quality output signal.

  • Page 10: Power

    DP/4+ will only operate on the listed voltage. Polarization and Grounding Like many modern electrical devices, your ENSONIQ product has a three-prong power cord with earth ground to ensure safe operation. Some products have power cords with only two prongs and no earth ground.

  • Page 11: Ac Line Conditioning

    For better reliability, we recommend that you do not install this unit beneath devices that are sensitive to heat, or above power amps, tube equipment, or other rack- mount units that emit a lot of heat. We recommend leaving a space above the DP/4+, as well. ENSONIQ DP/4+ Reference Manual...

  • Page 12: Amplifying Your Dp/4+ Through A Home Stereo System

    DP/4+. This will prevent any unwanted MIDI information from being “spit” out of the transmitting source (keyboard/sequencer) during power up, which could confuse the MIDI receivers, thereby disabling them. If this should occur, turn off the receiving module, and then turn it back on. ENSONIQ DP/4+ Reference Manual...

  • Page 13: Reinitializing The Dp/4

    RAM Preset data in the DP/4+, and all System•MIDI parameters will be reset to their default range! If reinitializing the DP/4+ does not correct the problem, then contact an Authorized ENSONIQ Repair Station. Note: If the DP/4+ is sitting in an infinite loop of system errors (the display is continually cycling through errors), press the {SYSTEM"MIDI} button to escape this...

  • Page 14: Battery Replacement Guidelines

    This will only appear for a short time, and then you can commence with normal operation. Then, make sure that all custom RAM configs, presets and system parameters are saved, and take the DP/4+ to an Authorized ENSONIQ Repair Station as soon as possible to have the battery replaced.

  • Page 15: Need More Help

    Alfred Publishing Company For prices and more information call 1-818-891-5999 MIDI ADVANCED MIDI APPLICATIONS, GPI BASIC MIDI APPLICATIONS, GPI WHAT IS MIDI?, GPI Hal Leonard Publishing For prices and more information call 1-414-774-3630 MIND OVER MIDI, GPI ENSONIQ DP/4+ Reference Manual...
  • Page 16 The following magazines offer many specific articles and columns that can provide a plethora of useful information. THE TRANSONIQ HACKER For prices and more information about this independent news magazine for ENSONIQ Users, call 1-503-227-6848 KEYBOARD For subscription rates and more information call 1-800-289-9919...

  • Page 17: Section 1 - Controls & Basic Functions

    DP/4+ presets; and a discussion of editing various types of parameters. We suggest you read this section carefully — it will help you get the most out of your DP/4+. ENSONIQ DP/4+ Reference Manual...

  • Page 18: Front Panel Controls

    If separate signals are being processed in the into this jack does not turn off the audio in the outputs. ENSONIQ DP/4+, these knobs will control the “mix- down” volumes. The maximum output level is +19 dBu. Warning: The headphone output circuit is designed to minimize the volume differences between low and 6.
  • Page 19 13. Edit Button 19. Input Configuration LEDs This is used to edit preset parameters, edit preset titles One of LEDs above the diagram will be lit, to show the and save presets. currently selected input configuration. ENSONIQ DP/4+ Reference Manual...

  • Page 20: Rear Panel Connections

    1. Line 6. CV•Pedal The supplied line cord is connected here. This jack is for connecting an ENSONIQ Model CVP- 1 Control Voltage Foot Pedal, which is assignable as a modulator to parameters within the DP/4+. 2. MIDI Thru Pedal/CV Specs: 3-conductor (tip = control voltage “Passes on”...

  • Page 21: Dp/4+ Rules

    DP/4+. With the knobs at 12:00, and an input signal of -10dBV, the output of the DP/4+ will also be -10 dBV. With these settings, any incoming signals slightly above +4 dBu or -10dBV respectively, will result in clipping. ENSONIQ DP/4+ Reference Manual...

  • Page 22: Using Headphones With The Dp/4

    Warning: The headphone output circuit is designed to minimize the volume differences between low and high impedance headphones. Because some headphones are more efficient than others, make sure you set the Output Knobs accordingly — high output volume levels could damage your hearing. ENSONIQ DP/4+ Reference Manual...

  • Page 23: The Input 1 Jack - Front Panel Vs. Back Panel

    With nothing connected to the front panel Input 1 jack, and the Mic Gain LED off: The front panel Input 1 doesn’t work (nothing’s plugged into it) — the rear panel Input 1 works: Mic Gain push Inputs mono input 1 rear input 1 off inst/mic ENSONIQ DP/4+ Reference Manual...

  • Page 24: A Note About The Input And Output Jacks

    1 and 2. There is a parameter in System•MIDI mode that allows you to accomplish this (parameter #60, Mix Output 3/4 onto 1/2). See Section 4 — System•MIDI for more information about this parameter. ENSONIQ DP/4+ Reference Manual...

  • Page 25: Ground Loops

    Black Shield 2. When a standard unbalanced cable is used from the preceeding piece of equipment. Standard Unbalanced Cable Shield This does not mean there will always be an input ground loop problem, just the possibility. ENSONIQ DP/4+ Reference Manual...

  • Page 26: Using Xlr Ins And Outs With The Dp/4

    Shield (unconnected) OTHER 1/4" output (balanced) ENSONIQ 1/4" input (balanced) 2. In unbalanced applications, use a special cable with the shield disconnected from the connector that is plugged into the source device. Attach the source device’s ground to the ring of the DP/4+ input connector. The two tips connect normally.

  • Page 27: A Note About The Foot Switches

    The recommended foot switch for use with the DP/4+ is the ENSONIQ Model SW-10 Dual Foot Switch. The SW-10 is a dual (piano-type) foot switch with two separate pedals. When the SW-10 is connected, the pedals can each be programmed independently to act as effect bypass switches, to provide two separately programmable modulation sources or to select presets.

  • Page 28: Four-On-The-Floor

    An Application For Using Two Stereo Foot Switches to Bypass Effects The DP/4+ allows you to employ two stereo foot switches (such as the ENSONIQ SW-10) to turn the DP/4+’s four effects processors on and off. To set up your foot pedals: 1.

  • Page 29: Hot Mods

    Section 1 — Controls & Basic Functions HOT MODS! Although they are not recommended, mono foot switches such as the ENSONIQ Models SW-2 or SW-6 Foot Switches can be used successfully if you are willing to make either of the following modifications.

  • Page 30: Build A Splitter Box To Merge Two Mono Foot Switches Into One Stereo Jack

    7. You might want to mark the housing assembly to easily identify the jacks. Tip: By doubling the above instructions, you could build a splitter box to merge four mono foot switches into two stereo jacks, for maximum DP/4+ control! ENSONIQ DP/4+ Reference Manual...

  • Page 31: Dp/4+ Modes

    For example, if the text read something like “press the Edit button,” it would appear as “press the {EDIT} button.” This will help you to quickly skim through familiar sections of the manual as you verify actual button presses. ENSONIQ DP/4+ Reference Manual...

  • Page 32: About Select Mode

    When a unit is selected by pressing its Unit button ({A}, {B}, {C}, or {D}): • its algorithm abbreviation is capitalized • that unit will be selected for editing, if you press the {EDIT} button. • pressing its button again will bypass the unit (its red LED will light) ENSONIQ DP/4+ Reference Manual...

  • Page 33: About Edit Mode

    By pressing the {EDIT} button you can toggle between the original setting (LED solidly lit) and the newly edited version (LED flashing) of that algorithm. What is visible on the display is the parameter settings that you hear. ENSONIQ DP/4+ Reference Manual...

  • Page 34: About System•Midi Mode

    After pressing {SYSTEM"MIDI}, press {A}, {B}, {C}, {D}, or {CONFIG} to go to unit-specific MIDI parameters relating to them. • Press {SYSTEM"MIDI} repeatedly to go directly to several convenient locations within the remaining parameter list. Then scroll to the parameter you want. ENSONIQ DP/4+ Reference Manual...

  • Page 35: About Presets

    Inputs 3 and 4 is a 3 Source Config parameter. Four Source Input Configuration In a four source config, the LED above the 4 source input configuration diagram will light. Four separate mono sources are plugged into Inputs 1, 2, 3, and 4. ENSONIQ DP/4+ Reference Manual...

  • Page 36: Selecting Config Presets

    Select LED stops flashing. Note: The first 10 ROM Config locations (presets #50 to 60) can be used as “starting places” for creating your own configurations, and cover common signal routing set-ups. ENSONIQ DP/4+ Reference Manual...

  • Page 37: How The Config Type Affects Selecting Presets

    2. The display gives you constant feedback. For all preset types, the upper line of the display shows the preset name. The lower line shows how many units are in the preset you are selecting. ENSONIQ DP/4+ Reference Manual...

  • Page 38: Replacing The Algorithm In A Single Unit

    2. Press either the {A} and {B}, or {C} and {D} buttons at the same time. Both LEDs will light 3. Move the Data Entry Knob to display the 2 Unit preset you desire, wait a moment and it will load automatically. ENSONIQ DP/4+ Reference Manual...

  • Page 39: About Signal Routing

    (the blank space will not appear in a 1 Source Config, because all four units are always connected together). The bottom example shows that there is no connection between Unit B and Unit C; signifying that this is a 2 source configuration. ENSONIQ DP/4+ Reference Manual...

  • Page 40: Understanding Serial, Parallel And Feedback Signal Routing

    In this example, if the first unit is a chorus, and the second a reverb, you have the signal first going through the chorus, then into the reverb. There is then an additional tap that sends the processed signal back into the beginning of the first unit (the chorus). ENSONIQ DP/4+ Reference Manual...

  • Page 41: Bypassing Units

    You must press {CANCEL} before scrolling to another parameter or leaving Edit mode. Tip: If you double-click on the {CANCEL} button, a signed parameter (one that has a range of -99 to +99) will put the level to +00 (the center position). ENSONIQ DP/4+ Reference Manual...
  • Page 42 Section 1 — Controls & Basic Functions ENSONIQ DP/4+ Reference Manual...
  • Page 43 22 — Mod2 Destination 19 — Mod1 Param Range Min 23 — Mod2 Param Range Min 20 — Mod1 Param Range Max24 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...
  • Page 44 When this parameter is In-Phase, the left and right choruses will modulate their detunes together. When set to Out-of-Phase, the detune on the left channel will go up while the detune on the right will go down. ENSONIQ DP/4+ Reference Manual...
  • Page 45 20 — Mod1 Param Range Min 24 — Mod2 Param Range Min 21 — Mod1 Param Range Max25 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 46 Range: -99 to +99 Controls the depth of the notches created by the flanging effect. A setting of +00 will disable the flanging effect, and also provide a doppler effect for wide, moderately slow LFO rates. ENSONIQ DP/4+ Reference Manual...

  • Page 47: Section 2 - Algorithms

    23 — Mod1 Param Range Min 27 — Mod2 Param Range Min 24 — Mod1 Param Range Max28 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 48 Switch between the two settings until it sounds right for your routing config. ENSONIQ DP/4+ Reference Manual...
  • Page 49 20 — Mod1 Param Range Min 24 — Mod2 Param Range Min 21 — Mod1 Param Range Max25 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 50 LFO, optimal settings are around 50. Higher values create a wider separation of the LFO curve. 05 — Left/Right LFO Range: Out-of-Phase or In-Phase Controls whether the left and right channels of the stereo tremolo will modulate in or out-of-phase. ENSONIQ DP/4+ Reference Manual...
  • Page 51 20 — Mod1 Param Range Min 24 — Mod2 Param Range Min 21 — Mod1 Param Range Max25 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 52 Out-of-Phase or In-Phase Controls the vibrato pitch direction of the left and right channels. When Out-of-Phase, the (quadrature) pitch change on the left channel will lag 90˚ from the right. When In-Phase, both channels will change pitch together. ENSONIQ DP/4+ Reference Manual...
  • Page 53 20 — Mod1 Param Range Min 24 — Mod2 Param Range Min 21 — Mod1 Param Range Max25 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 54 Determines the attack rate after the initial signal has been detected and before the expansion takes affect. 07 — Exp Release Range: 1ms to 10.0s Determines the release rate after the signal has been detected below the threshold level. This is generally chosen longer than the attack time (parameter 06). ENSONIQ DP/4+ Reference Manual...
  • Page 55 21 — Mod2 Destination 18 — Mod1 Param Range Min 22 — Mod2 Param Range Min 19 — Mod1 Param Range Max23 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...
  • Page 56 13 — Mod1 Param Range Min 17 — Mod2 Param Range Min 14 — Mod1 Param Range Max18 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 57 09 — Mod1 Param Range Min 13 — Mod2 Param Range Min 10 — Mod1 Param Range Max14 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 58: Gated Reverb

    Hold Time Hold Time Hold Time Hold Time Level Hold Time Retrigger Trigger Signal Time 01 — Mix 02 — Volume See the descriptions under the Mix and Volume Parameters, in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 59 Smears the transients, so as to diffuse and smooth the sound. Lower values will cause impulsive sounds to appear as a series of discrete echoes, while higher values tend to increase the smear (smoother sounding). Recommended setting is approximately 50. ENSONIQ DP/4+ Reference Manual...
  • Page 60 22 — Mod1 Param Range Min 26 — Mod2 Param Range Min 23 — Mod1 Param Range Max27 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 61: Guitar Amp 1, Guitar Amp 2

    Determines the width of the resonant peak at the parametric filter center frequency. While the Filter center parameter determines where (at what frequency) this peak will occur, the Q setting controls the presence of the peak. ENSONIQ DP/4+ Reference Manual...
  • Page 62 27 — Mod2 Destination 24 — Mod1 Param Range Min 28 — Mod2 Param Range Min 25 — Mod1 Param Range Max29 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 63: Guitar Amp 3

    Range: This read only parameter shows the level of the signal. 12 — Noise Gate Off Below Range: -96 to +00 dB Sets the lower threshold level at which the noise gate shuts off the audio. ENSONIQ DP/4+ Reference Manual...
  • Page 64 25 — Mod1 Param Range Min 29 — Mod2 Param Range Min 26 — Mod1 Param Range Max30 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 65: Guitar Amp 4

    Filters out the low frequencies before the preamp. The higher the value, the less low frequencies pass through. 10 — Pre-EQ Fc Range: 5 to 9999 Hz This parameter determines the center frequency of the parametric filter before the preamp. Higher values have a brighter sound. ENSONIQ DP/4+ Reference Manual...
  • Page 66 28 — Mod2 Destination 25 — Mod1 Param Range Min 29 — Mod2 Param Range Min 26 — Mod1 Param Range Max30 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 67: Guitar Tuner 2U

    This parameter optimizes the frequency-detection range for bass (low signals) and guitar (high signals). 06 — Reference Range: A438 to A445 Determines the reference pitch based on A=440 (the default setting). Different countries use different reference points, and this parameter allows the fine adjustment of that point. ENSONIQ DP/4+ Reference Manual...

  • Page 68: Hall Reverb

    01 — Mix 02 — Volume These parameters are explained in detail under the Mix and Volume Parameters description, found in the beginning of this section. Reverbs sound best with a Mix of wet and dry. ENSONIQ DP/4+ Reference Manual...
  • Page 69 Range: 00 to 99 Controls the LFO rate of detuning introduced into the reverberation decay. Detuning creates a slight oscillating pitch shift into the decay, giving it a more natural sound by breaking up resonant modes. ENSONIQ DP/4+ Reference Manual...
  • Page 70 26 — Mod1 Param Range Max30 — Mod2 Param Range Max These modulation control parameters are identical for all of the algorithms and are explained in detail under the Algorithm Modulators description, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 71: Inverse Expander

    05 — Gain Change Range: This read-only parameter displays a gain increase meter. 06 — Exp Attack Range: 50µs to 100ms Determines the time after the initial signal amplitude has been detected for the expansion to occur. ENSONIQ DP/4+ Reference Manual...
  • Page 72 17 — Mod1 Param Range Min 21 — Mod2 Param Range Min 18 — Mod1 Param Range Max22 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators at the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 73: Keyed Expander

    Determines the release rate after the signal has been detected below the threshold level. This is generally chosen longer than the attack time (parameter 06). 08 — Expander Gate Hold Time Range: 1ms to 10.0s This is the detection sustain time in the ADSR which constitutes attack, sustain, and release. ENSONIQ DP/4+ Reference Manual...
  • Page 74 19 — Mod1 Param Range Min 23 — Mod2 Param Range Min 20 — Mod1 Param Range Max24 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 75: Large Plate

    The higher the setting, the more high frequencies are allowed to pass through, offering a brighter ringing sound. Some interesting effects can be created by using a mod controller over a large range. ENSONIQ DP/4+ Reference Manual...
  • Page 76 17 — Mod1 Param Range Min 21 — Mod2 Param Range Min 18 — Mod1 Param Range Max22 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 77: Large Room Rev

    04 — Predelay Time Range: 0 to 450 ms Controls the amount of time it takes for the original signal to be presented to the reverb. Higher values denote a longer delay. ENSONIQ DP/4+ Reference Manual...
  • Page 78 Range: 00 to 99 Controls the LFO rate of detuning introduced into the reverberation decay. Detuning creates a slight oscillating pitch shift into the decay, giving it a more natural sound by breaking up resonant modes. ENSONIQ DP/4+ Reference Manual...
  • Page 79 26 — Mod1 Param Range Max30 — Mod2 Param Range Max These modulation control parameters are identical for all of the algorithms and are explained in detail under the Algorithm Modulators description, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 80: Multi Tap Delay

    22 — Mod1 Param Range Min 26 — Mod2 Param Range Min 23 — Mod1 Param Range Max27 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, in the beginning of this section. NO EFFECT (BYPASS EFFECT) ENSONIQ DP/4+ Reference Manual...
  • Page 81 05 — Mod1 Param Range Min 09 — Mod2 Param Range Min 06 — Mod1 Param Range Max10 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 82: Non Lin Reverb 1, 2, 3

    There is also an external dry signal (not shown) that goes directly from the input to the output and is controlled with the mix parameter (01). 01 — Mix 02 — Volume See the descriptions under the Mix and Volume Parameters, in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 83 00 to 99 Diffusion2 is similar to Diffusion1, but offers control of lower frequencies. In general a setting of 50 can be considered an equal mix of dry/diffused sound; this setting is a good starting point. ENSONIQ DP/4+ Reference Manual...
  • Page 84 29 — Mod2 Destination 26 — Mod1 Param Range Min 30 — Mod2 Param Range Min 27 — Mod1 Param Range Max31 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 85: Parametric Eq

    16 — Mod1 Param Range Min 20 — Mod2 Param Range Min 17 — Mod1 Param Range Max21 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 86: Phaser-Ddl

    -99 to +99 Controls the phaser pole center. High values raise the nominal spectral location of the “woosh” sound, while low values lower the “woosh.” The range from high to low is controlled with the phaser width. ENSONIQ DP/4+ Reference Manual...
  • Page 87 18 — Mod2 Destination 15 — Mod1 Param Range Min 19 — Mod2 Param Range Min 16 — Mod1 Param Range Max20 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 88: Pitch Shift 2U

    This parameter allows you to fine tune the pitch of Voice 1. 05 — PitchShifter Vc 1 Level Range: 00 to 99 Adjusts the volume of Voice 1. A setting of 00 would eliminate any audible pitch shift. ENSONIQ DP/4+ Reference Manual...
  • Page 89 Mod1 Source Mod2 Source Mod1 Destination Mod2 Destination Mod1 Param Range Min Mod2 Param Range Min Mod1 Param Range Max Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 90: Pitchshift - Ddl

    Vc1. 07 — PitchShift Vc 2 Semi Range: -12 to +12 Allows you to adjust the pitch of Voice 2 up to an octave above or below the original pitch in semi-tones. ENSONIQ DP/4+ Reference Manual...
  • Page 91 21 — Mod2 Destination 18 — Mod1 Param Range Min 22 — Mod2 Param Range Min 19 — Mod1 Param Range Max23 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 92: Pitch Shifter

    This parameter allows you to fine tune the pitch of Voice 1. 05 — PitchShifter Vc 1 Level Range: 00 to 99 Adjusts the volume of Voice 1. A setting of 00 would eliminate any audible pitch shift. ENSONIQ DP/4+ Reference Manual...
  • Page 93 Mod1 Source Mod2 Source Mod1 Destination Mod2 Destination Mod1 Param Range Min Mod2 Param Range Min Mod1 Param Range Max Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 94: Reversereverb1

    (parameter 03). 05 — Envelope Release Range: 1ms to 10.0s Determines the release time after the hold time has elapsed. Generally this time is very short. Lower values offer an abrupt cutoff. ENSONIQ DP/4+ Reference Manual...
  • Page 95 15 — Mod1 Param Range Min 19 — Mod2 Param Range Min 16 — Mod1 Param Range Max20 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 96: Reverse Reverb 2

    For the most natural sounding reverse effect, we recommend a setting of 09 — Diffusion 1 Range: 00 to 99 Smears the input signal making a smoother sounding reverb. This parameter controls the high frequency ranges. For percussion sounds, high values are recommended. ENSONIQ DP/4+ Reference Manual...
  • Page 97 14 — Mod1 Param Range Min 18 — Mod2 Param Range Min 15 — Mod1 Param Range Max19 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 98: Rotating Speaker

    08 — Distortion Level Out Range: 00 to 99 Controls the output of the amplifier distortion. There is a (fixed) clean path in parallel with the distortion). Therefore, to eliminate distortion, set this parameter to 00. ENSONIQ DP/4+ Reference Manual...
  • Page 99 13 — Mod1 Param Range Min 17 — Mod2 Param Range Min 14 — Mod1 Param Range Max18 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 100: Rumble Filter

    08 — Mod1 Param Range Min 12 — Mod2 Param Range Min 09 — Mod1 Param Range Max13 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 101: Sine/Noise Gen

    16 — Mod2 Destination 13 — Mod1 Param Range Min 17 — Mod2 Param Range Min 14 — Mod1 Param Range Max18 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 102: Small Plate

    Small Plate. High values of decay sound good on these algorithms. 04 — Predelay Time Range: 0 to 500 ms Controls the amount of time it takes for the input signal to be presented to the plate reverb. A value of 0 would offer no delay. ENSONIQ DP/4+ Reference Manual...
  • Page 103 17 — Mod1 Param Range Min 21 — Mod2 Param Range Min 18 — Mod1 Param Range Max22 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 104: Small Room Rev

    01 — Mix 02 — Volume These parameters are explained in detail under the Mix and Volume Parameters description, found in the beginning of this section. Reverbs sound best with a Mix of wet and dry. ENSONIQ DP/4+ Reference Manual...
  • Page 105 Range: 00 to 99 Controls the LFO rate of detuning introduced into the reverberation decay. Detuning creates a slight oscillating pitch shift into the decay, giving it a more natural sound by breaking up resonant modes. ENSONIQ DP/4+ Reference Manual...
  • Page 106 26 — Mod1 Param Range Max30 — Mod2 Param Range Max These modulation control parameters are identical for all of the algorithms and are explained in detail under the Algorithm Modulators description, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 107: Speaker Cabinet

    09 — Mod2 Destination 06 — Mod1 Param Range Min 10 — Mod2 Param Range Min 07 — Mod1 Param Range Max11 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 108: Tempo Delay

    16 — Mod2 Destination 13 — Mod1 Param Range Min 17 — Mod2 Param Range Min 14 — Mod1 Param Range Max18 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...
  • Page 109 16 — Mod1 Param Range Min 20 — Mod2 Param Range Min 17 — Mod1 Param Range Max21 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...
  • Page 110 Setting this gain too high will cause clipping of the output signal. 14 — Noise Gate Off Below Range: -96 to +00 dB This parameter sets the threshold level at which the noise gate shuts off the audio. ENSONIQ DP/4+ Reference Manual...
  • Page 111 19 — Mod1 Param Range Min 23 — Mod2 Param Range Min 20 — Mod1 Param Range Max24 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 112: Van Der Pol Filter

    08 — Mod1 Param Range Min 12 — Mod2 Param Range Min 09 — Mod1 Param Range Max13 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 113: Vcf - Distort 1

    Determines the level and width of the resonant peak at the filter cutoff point. While the Fc (filter cutoff) parameter determines where (at what frequency) this peak will occur, the Q setting controls the presence of the peak. This setting is important for the auto-wah effect. ENSONIQ DP/4+ Reference Manual...
  • Page 114 17 — Mod1 Param Range Min 21 — Mod2 Param Range Min 18 — Mod1 Param Range Max22 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 115: Vcf - Distort 2

    How quickly it does so is determined by parameters 11 and 12. This sound is the auto- wah; positive values will boost the high frequencies, offering an “oww-oww” sound, and negative values will cut the high frequencies, producing a “dweep-dweep” sound. ENSONIQ DP/4+ Reference Manual...
  • Page 116 Mod2 Source Mod1 Destination Mod2 Destination Mod1 Param Range Min Mod2 Param Range Min Mod1 Param Range Max Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 117: Vocal Remover

    10. The Mid Level, Mid Fc, and Mid BW may be adjusted. Experiment with steps 9 and 10 for the best result. Vocal Remover Signal Routing Bass Treble Cancellation Circuit Left Delay Main Outputs Delay L/R Delay Vocal Pos Treble Right Bass ENSONIQ DP/4+ Reference Manual...
  • Page 118 17 — Mod2 Destination 14 — Mod1 Param Range Min 18 — Mod2 Param Range Min 15 — Mod1 Param Range Max19 — Mod2 Param Range Max See the descriptions under the Algorithm Modulators earlier in this section. ENSONIQ DP/4+ Reference Manual...

  • Page 119: Vocoder

    Carrier signal is forced to match the spectrum of the Vox signal. There is also an internal signal from the Vox input that bypasses the spectrum analyzer and sends the high- frequency sibilance sounds (t’s, p’s, clicks, pops, etc.) directly to the output for improved articulation. ENSONIQ DP/4+ Reference Manual...

  • Page 120: Setting Up The Vocoder

    The characteristics of the carrier input signal also affect the vocoder quality. The carrier signal must not only contain sufficient harmonics to cover the frequency range of the vocoder, it must be played in a pitch range that ENSONIQ DP/4+ Reference Manual...
  • Page 121 Mod2 Source Mod1 Destination Mod2 Destination Mod1 Param Range Min Mod2 Param Range Min Mod1 Param Range Max Mod2 Param Range Max See the descriptions under the Algorithm Modulators, found in the beginning of this section. ENSONIQ DP/4+ Reference Manual...

  • Page 122: Section 3 - Config Parameters

    Section 3 — Config Parameters This section will teach you about configs, how the effects (called algorithms) are routed in the DP/4+, and define all of the parameters relating to these configurations. ENSONIQ DP/4+ Reference Manual...

  • Page 123: What Is A Config

    The output of a unit is converted back to analog audio for the output jack. Digital-to- Analog-to- Analog Digital Units Converters Outputs Inputs Converters = Analog = Digital (Not all of the possible signal routings are shown.) All of the above elements are under complete software control. ENSONIQ DP/4+ Reference Manual...

  • Page 124: Input Configurations

    In a 4 Source Config, the LED above the 4 source input configuration diagram will light. Four separate mono sources are plugged into Inputs 1, 2, 3, and 4. Even though the input signals to the units must be mono, the effect processing can generate four stereo output signals. ENSONIQ DP/4+ Reference Manual...

  • Page 125: Selecting A Config Preset

    This will happen if you change the number of sources, or if the mono/stereo output routing is different. This interruption is normal and is required for the system to reconfigure its signal routing. ENSONIQ DP/4+ Reference Manual...

  • Page 126: Source Config

    The difference between Feedback 1 and Feedback 2 is how the dry signal is mixed into the wet signal (as shown above). Note that the feedback signal is all wet, and that it is tapped before the dry signal. ENSONIQ DP/4+ Reference Manual...
  • Page 127 Note: The difference between Feedback 1 and Feedback 2 is in the dry path only (as shown earlier). Because we are not showing the dry path variations, there are only 18 different ABCD routing possibilities shown on the next page. ENSONIQ DP/4+ Reference Manual...

  • Page 128: Available Abcd Routings

    AB Serial + CD Parallel AB Serial + CD Feedback AB Parallel + CD Serial AB Parallel + CD Parallel AB Parallel + CD Feedback AB Feedback + CD Serial AB Feedback + CD Parallel AB Feedback + CD Feedback ENSONIQ DP/4+ Reference Manual...
  • Page 129 This parameter controls this amount. If parameter 02 is parallel, this screen shows: AB Feedback not available This parameter does nothing because of the nature of a parallel connection, there is no dry path (or feedback) around the units. ENSONIQ DP/4+ Reference Manual...
  • Page 130 When using Kill in a configuration involving unit feedback pairs (for example, AB Unit Routing=feedback): • Killing Unit B in a feedback pair mutes the signal. • Killing Unit A does NOT mute the signal. Unit B can still pass dry signal. ENSONIQ DP/4+ Reference Manual...

  • Page 131: Source Config

    03 — AB Unit Routing Range: serial, parallel, feedback1, or feedback2 Units A and B can be routed together in either serial, parallel, or two different kinds of feedback (explained in the 1 Source Config description). ENSONIQ DP/4+ Reference Manual...
  • Page 132 Note: In order to use a foot switch to bypass a unit, it must be set to function as a DP/4+ controller (see the description of System•MIDI parameters 45 to 48 in Section 4 — System•MIDI). ENSONIQ DP/4+ Reference Manual...
  • Page 133 CD Amt =00 03 — (Config Dependent) This parameter is dependent on how Units C and D are routed. See the description about config dependent parameters under 1 Source Config (parameters 05 and 06) for more information. ENSONIQ DP/4+ Reference Manual...
  • Page 134 Note: In order to use a foot switch to bypass a unit, it must be set to function as a DP/4+ controller (see the description of System•MIDI parameters 45 to 48 in Section 4 — System•MIDI). ENSONIQ DP/4+ Reference Manual...

  • Page 135: Source Config

    Note: In order to use a foot switch to bypass a unit, it must be set to function as a DP/4+ controller (see the description of System•MIDI parameters 45 to 48 in Section 4 — System•MIDI). ENSONIQ DP/4+ Reference Manual...

  • Page 136: Section 5 - Storage

    Config Presets internally to other locations, write (save) edited preset information, and transmit dumps via MIDI system exclusive messages. Presets may also be manually transcribed using the Preset Parameter Worksheet preset found at the end of this section, and also at the end of this manual. ENSONIQ DP/4+ Reference Manual...

  • Page 137: Internal Storage

    4. Once this switch has been set to the “Off” position, you can save your preset. Press the {EDIT} button to return to Edit mode. Your newly edited preset should still be intact and ready to save. ENSONIQ DP/4+ Reference Manual...

  • Page 138: Saving Presets

    O ld Preset Name Cursor (underline) beneath first alpha-numeric character 5. Use the {<} and {>} buttons to move the cursor left and right, and the Data Entry Knob to change the alpha-numeric characters at the current cursor position. ENSONIQ DP/4+ Reference Manual...

  • Page 139: List Of Alpha-Numeric Characters

    Edit mode. This may be necessary if the preset type is not what you expected to save. Make sure that the Config LED is not on unless you want to save a config preset. ENSONIQ DP/4+ Reference Manual...

  • Page 140: Advanced Features

    First Unit Selected Second Unit Selected 4. Press {WRITE} to swap the two selected units. The display says “Units Swapped!” You can use this procedure any time you want to swap a 1 Unit Preset with another. ENSONIQ DP/4+ Reference Manual...

  • Page 141: Copying A 1 Unit Preset To Another Unit

    2. Press either the {A} and {B}, or {C} and {D} buttons at the same time. Both LEDs will light 3. Move the Data Entry Knob to display the 2 Unit preset you desire, wait a moment and it will load automatically. ENSONIQ DP/4+ Reference Manual...

  • Page 142: Copying Presets

    5. Press the {COPY} button a second time to copy your preset. The display will momentarily show the same “*WRITE OK*” message that appears when saving a preset from Edit mode (see earlier). 6. You have just successfully copied your preset. ENSONIQ DP/4+ Reference Manual...

  • Page 143: Midi System Exclusive Storage

    These dumps can be directly transmitted to another DP/4+, or can be recorded by an external device which has MIDI Sys-Ex Recorder capabilities (such as the ENSONIQ TS-10, TS-12 or ASR-10) to be stored and later retransmitted to the DP/4+.
  • Page 144 (see the Appendix). The System Exclusive ID number (system parameter 52) is embedded in Remember! every message, so it must be set correctly on the transmitting and receiving units if dumps are to be recognized. ENSONIQ DP/4+ Reference Manual...

  • Page 145: Problems

    On many Macintosh™ applications, however, the sysex transfer rate can be reduced. You could also try reducing the speed of the interface (e.g., from 2x to 1x). For more information about error messages, refer to the DP/4+ MIDI System Exclusive Specification (see the Appendix). ENSONIQ DP/4+ Reference Manual...

  • Page 146: Using The Preset Parameter Worksheet

    Use the {<} and {>} buttons to scroll through and record the edited parameters. Note: Many of the algorithms and configs do not require all of the spaces provided on the Preset Parameter Worksheet. You should leave these spaces blank. ENSONIQ DP/4+ Reference Manual...
  • Page 147 Config Parameters: 1 2 3 4 Source Config Unit A Algorithm: Unit B Algorithm: Unit C Algorithm: Unit D Algorithm: 01- Mix 01- Mix 01- Mix 01- Mix 02- Volume 02- Volume 02- Volume 02- Volume Notes: ENSONIQ DP/4+ Reference Manual...

  • Page 148: Section 6 - Presets

    Section 6 — Presets WOW!!! This section shows how to select the RAM and ROM presets found in the DP/4+, and shows the names, algorithms, and routing configurations within the 1 Unit, 2 Unit, 4 Unit and Config Presets. ENSONIQ DP/4+ Reference Manual...
  • Page 149 ENSONIQ DP/4+ Reference Manual...

  • Page 150: Quick Steps To Hear Presets

    You may have to rearrange your cables/routings in order to hear certain presets correctly. 4. To select other Config Presets, turn the Data Entry Knob and press {SELECT} whenever you see a preset you’d like to hear. ENSONIQ DP/4+ Reference Manual...

  • Page 151: 1-Unit Ram Presets

    Large Room Rev Bright Hall Boom Room Hall Reverb NonLin Reverb2 Vocal Hall Kickdrum Nonlin Hall Reverb NonLin Reverb3 Concert Hall 1 Large Plate Concert Hall 2 Large Plate Summer Hall Hall Reverb Famous Hall Hall Reverb ENSONIQ DP/4+ Reference Manual...
  • Page 152 FastPitchShift '66 Car Radio Echo Clav Tunable Spkr 1 Dual Delay Analog Flanger Medium Flange EQ-Vibrato-DDL Flanger Wild Panner Tight Flange EQ-Panner-DDL Flanger Tape Stop Effect Wet Chorus PitchShift-DDL 8 Voice Chorus Key Funk Flange EQ-Flanger-DDL ENSONIQ DP/4+ Reference Manual...

  • Page 153: 1-Unit Rom Presets

    Non Lin Reverb 1 Speaker Cabinet NonLin Reverb1 SpeakerCabinet Non Lin Reverb 2 TunableSpeaker 1 NonLin Reverb2 Tunable Spkr 1 Non Lin Reverb 3 NonLin Reverb3 Multi Tap Delay MultiTap Delay Dual Delay Dual Delay Tempo Delay Tempo Delay ENSONIQ DP/4+ Reference Manual...
  • Page 154 Phaser - DDL Sine/Noise Gen 8 Voice Chorus FS Tap-Tempo DDL 8 Voice Chorus Tempo Delay Flanger Noise Gate Flanger EQ-Compressor Pitch Shifter Vocal Compressor PitchShifter EQ-Compressor Pitch Shift-DDL No Effect/Silent PitchShift-DDL No Effect Fast Pitch Shift FastPitchShift ENSONIQ DP/4+ Reference Manual...

  • Page 155: 2-Unit Ram Presets

    Spring Reverb Flanged Reverb 2 Rotating Spkr Large Plate Large Plate Flanger Bloom Canyon NonLin Reverb3 Large Plate Dark Verb Tunable Spkr 1 Large Plate ⁄ Airplane Hangar NonLin Reverb1 Large Plate Snare Intro Large Plate EQ-Compressor ENSONIQ DP/4+ Reference Manual...
  • Page 156 PitchShifter ⁄ Super Mute-ron Big Non Lin 1 VCF-Distort 1 Guitar Amp 3 NonLin Reverb3 PitchShifter Vocal EQ & Comp Big Non Lin 2 Parametric EQ EQ-Compressor NonLin Reverb1 NonLin Reverb1 Vocal Magic PitchShift-DDL Large Plate ENSONIQ DP/4+ Reference Manual...

  • Page 157: 2-Unit Rom Presets

    Hall Reverb Flanger ⁄ Large Plate EQ-Flanger-DDL 30th St. Station Parametric EQ Hall Reverb Early & Plate NonLin Reverb1 Large Plate Parking Garage Large Plate Large Room Rev Classic 80s Verb Large Plate 8 Voice Chorus ENSONIQ DP/4+ Reference Manual...
  • Page 158 PitchShifter NonLin Reverb1 Large Plate EQ-Panner-DDL Ducker & EQ Rhythmic Panner Ducker / Gate Parametric EQ Tempo Delay EQ-Panner-DDL KeyedExpander&EQ Science Lab Keyed Expander Parametric EQ Sine/Noise Gen Phaser - DDL Exciter & DDL VandrPolFilter EQ-DDL-withLFO ENSONIQ DP/4+ Reference Manual...

  • Page 159: 4-Unit Ram Presets

    LrgPlate Studio Vocal 1 EQ-Compressor PitchShift-DDL Dual Delay Large Plate Studio Vocal 2 EQ-Compressor PitchShift-DDL Dual Delay Large Plate Crisp VocalChain Parametric EQ EQ-Compresr Pitch Shifter VandrPolFilter Up Front Vocal EQ-Compresr PitchShifter NonLin Rev1 Tempo Delay ENSONIQ DP/4+ Reference Manual...
  • Page 160 Large Plate Dual Delay PitchShift-DDL Phaser - DDL Gated Rev Phaser - DDL ⁄ Rhythm-DDL Gtr CV-Wet Thunder! EQ-Compressr EQ-Chor-DDL PitchShifter MultiTapDelay Sine/NoiseGen Phaser- DDL EQ-DDL-withLFO LrgPlate Comp-DDL Guitar EQ-Compressor 8 Voice Chorus Dual Delay Large Plate ENSONIQ DP/4+ Reference Manual...

  • Page 161: 4-Unit Rom Presets

    Guitar Amp 2 MultiTap Delay Hall Reverb De-esVocalChain EQ-Compressor De-esser MultiTap Delay Large Plate Wide Vocal Chain EQ-Compress PitchShift-DDL MultiTapDelay LargePlate Jazz Vocal Chain EQ-Compress PitchShift-DDL LargePlate MultiTapDelay '57 Vocal Smooth Param EQ EQ-Compressor LargePlate PitchShift-DDL ENSONIQ DP/4+ Reference Manual...
  • Page 162 8 Voice Chorus Large Plate ⁄ Clean EP Chain Guitar Tuner 4U Param EQ 8 Voice Chorus Hall Reverb 8 Voice Chorus GuitarTuner 2U No Effect No Effect BurningSax Chain Hall Reverb InversExpander PitchShifter MultiTap Delay ENSONIQ DP/4+ Reference Manual...

  • Page 163: Config Ram Presets

    Large Plate Strings Brass Large Plate 8 Voice Chorus Small Plate Large Plate Guitar Bass Guitar Amp 2 Rotating Spkr Phaser - DDL Phaser - DDL Drums Bass NonLin Reverb1 Large Plate Phaser - DDL PitchShifter ENSONIQ DP/4+ Reference Manual...
  • Page 164 DDL Plt Guitar Lunar Self-Gen MultiTap Delay Large Plate VCF-Distort 1 Guitar Amp 3 PitchShifter Large Room Rev Sine/Noise Gen Phaser - DDL ⁄ Flg Slap Phaser EQ-Flanger-DDL Dual Delay Phaser - DDL Phaser - DDL ENSONIQ DP/4+ Reference Manual...

  • Page 165: Config Rom Presets

    No Effect No Effect No Effect No Effect Vocoder Preset Vocoder Low Vocoder Mid1 Vocoder Mid2 Vocoder High Vocoder Preset 2 Vocoder Low Vocoder Mid1 Vocoder Mid2 Vocoder High All Purp Mixdown Large Plate PitchShifter NonLin Reverb1 Dual Delay ENSONIQ DP/4+ Reference Manual...
  • Page 166 NonLin Rev 3 NonLin Rev 3 NonLin Rev 3 NonLin Rev 3 VCF-Distort1 EQ-DDL-w/LFO LrgRoomRev LrgRoomRev ⁄ My College Dorm Vocal Remover Small Plate Small Plate Small Plate Small Plate EQ-Compressor Large Plate Vocal Remover No Effect Rectangle Halls Lrg RoomRev Lrg RoomRev Lrg RoomRev Lrg RoomRev ENSONIQ DP/4+ Reference Manual...
  • Page 167 Section 6 — Presets ENSONIQ DP/4+ Reference Manual...

  • Page 168: Appendix

    155 Great Valley Parkway Malvern, PA 19355-0735 Include in your written request your name and address, and indicate that you would like a copy of the “DP/4+ MIDI System Exclusive Specification.” Please allow 2 to 3 weeks for delivery. ENSONIQ DP/4+ Reference Manual...

  • Page 169: Midi Implementation Chart

    All modulation sources are received on the control channel. Mode 1= OMNI ON, POLY Mode 2= OMNI ON, MONO O= YES Mode 3= OMNI OFF, POLY Mode 4= OMNI OFF, MONO X = NO ENSONIQ DP/4+ Reference Manual...

  • Page 170: Glossary

    Glossary There are a few terms that you may be unfamiliar with, and need to be understood before you can unlock the DP/4+’s full potential as a programmable effects processor. This section defines these terms. ENSONIQ DP/4+ Reference Manual...
  • Page 171 When set to “bypass,” pressing two times on a Unit button (red LED lit) will cause the effect processing to be temporarily silenced for that Unit, so all you hear is the dry source signal. It bypasses the algorithm/preset. “Kill” is the other choice (see Kill). ENSONIQ DP/4+ Reference Manual...
  • Page 172 “damping” techniques. De-esser A specialized algorithm that reduces the level of sibilance in a source signal through selective high frequency compression. This sibilance is usually heard as an “s” sound in speech, hence the name De-esser. ENSONIQ DP/4+ Reference Manual...
  • Page 173 EQ in the regeneration path. In Feedback 1, the wet/dry mix of the B unit combines the dry input to A with the output of B. When set to full dry (0) only the dry input signal is heard. ENSONIQ DP/4+ Reference Manual...
  • Page 174 “Bypass” is the other choice (see Bypass). LEDs (Light Emitting Diodes) are little lamps that are solid-state devices, and are not like conventional light bulbs. Under normal conditions, they will not burn out, and have a virtually unlimited lifetime. ENSONIQ DP/4+ Reference Manual...
  • Page 175 EQ has variable center frequency, gain, and “Q” - the ratio of center frequency to bandwidth. Phaser Originally conceived as an approximation to the flange effect. Allpass filters are used in place of the delay lines. Allpass filters introduce delay by modifying signal phase, hence the name. ENSONIQ DP/4+ Reference Manual...
  • Page 176 The RAM presets are loaded with factory defaults when the unit is shipped and whenever it is reinitialized. These default presets may be recalled into RAM at any time using a special command described in the System•MIDI section. ENSONIQ DP/4+ Reference Manual...
  • Page 177 A type of connector that has three pins. Pin 1 is the ground reference, pin 2 carries the Connector “hot” signal, and pin 3 carries the anti-phase “cold” signal. It is designed to mate with balanced inputs and outputs. VIII ENSONIQ DP/4+ Reference Manual...
  • Page 178 15 — Speaker HighPass Cutoff 16 — Amp Feedback Amount 17 — Amp Feedback HF Damping 18 — Amp Feedback Delay 19 — Mod1 Source 20 — Mod1 Destination Parameter 21 — Mod1 Param Range Min ENSONIQ DP/4+ Reference Manual...
  • Page 179 {B} button. • Press {WRITE} to initialize all of the RAM presets. Reinitializing the DP/4+ • While holding down {SYSTEM"MIDI}, press the {B} button. • Press the {>} button once. • Press {WRITE} to reinitialize the DP/4+. ENSONIQ DP/4+ Reference Manual...

  • Page 180: Specs

    2 dual foot switch inputs internal power supply, detachable power cord, internal fuse Dimensions 19” (48.26cm) wide x 3 1/2” (8.87cm) high x 13” (33.02cm) deep 19” rack mount standard, 2U high 9.5 lbs. (4.30 kilograms) ENSONIQ DP/4+ Reference Manual...
  • Page 181 Specifications ENSONIQ DP/4+ Reference Manual...

  • Page 182: Index

    Analog audio 23, 132 Accessories vi Analog signals 23, 132 Acoustic space 77 Analog-to-digital converters 23, 132, 168 ADSR 63, 64, 82 Analysis 128 Advanced Features 173 Analyze 130 Alcohol i Analyzer 128 Algorithm 16, 25 ENSONIQ DP/4+ Reference Manual...
  • Page 183 Program Changes 151 Audio signal processors 23, 132 Bypass/Kill Parameters 12, 139 Authorized ENSONIQ Dealer vi Bypass/unbypass 12 Authorized ENSONIQ Repair Station v, vi, 167 Auto-Load Preset 160 Auto-wah 122, 123, 124 Automatic 178 Cable shield 10 Automatic switching 8...
  • Page 184 Pan 35 Control Channel Reception 154 Rate 117 Controller 156 Regen 35 Controller number 163 Regen Damping 35 Controller source 152 Time 35, 89, 104 Controller sources 129, 155 Delay vs Quality 102 Copy 174 Delays 89 ENSONIQ DP/4+ Reference Manual...
  • Page 185 Modulating with the CV Pedal 33 DP4 Controller1 to 8 - 155 Effects Drill 14 About the i Drops iii Crossfading 34 Drums 39, 111 Emphasis 130 Dry 32, 138 Engineer 160 Audio signal 90 ENSONIQ SW-10) 12 ENSONIQ DP/4+ Reference Manual...
  • Page 186 Output Gain 64, 83 Mono vi Output Mix 83 Foot Switch 1 and 2 Jacks 4 Expansion 72, 81 Foot Switch 1-L 155, 156, 157, 163 Expnd Ratio 72, 80 Foot Switch 1-R 155, 156, 157, 163 ENSONIQ DP/4+ Reference Manual...
  • Page 187 Ground compensating scheme 9 Highpass 126 Ground lift switch 10 HighPass Fc 64, 83, 121 Ground loop 9 Hiss 109 Ground loop problems 9 Hit <WRITE> To Reinitialize!!!! v, 167 Ground loops 8, 9, 10 Hold Time 68 ENSONIQ DP/4+ Reference Manual...
  • Page 188 Defined VIII Using the 36 Modulation 53 Interface 178 Rate 87, 114 Interference 9 Lightning iii Intermodulation distortion 42, 48 Limiter 39, 45, 51, V Internal Clock 117 Defined VIII Internal Clock Tempo 117 Line 4 ENSONIQ DP/4+ Reference Manual...

  • Page 189: List Of Algorithms

    Mid2 Q 40, 46, 94, 118, 119 Mod2 Param Range Max 32 Mid3 Fc 118, 119 Mod2 Param Range Min 32 Mid3 Gain 118, 119 Mod2 Source 32 Mid3 Q 118, 119 Mode MIDI About 15 Defined VIII ENSONIQ DP/4+ Reference Manual...

  • Page 190: Multi Tap Delay

    Noise Gate Off Below 39, 46, 71, 72, 75, 119 Delay Regen 58 Noise Gate On Above 40, 46, 71, 73 Echo Level 58 Non Lin 1 - 91 Left Delay Time 58 Non Lin 2 - 91 Left Echo Time 58 ENSONIQ DP/4+ Reference Manual...
  • Page 191 Power up iv Pitch correction 65 Powering up Pitch modulation 49, 53, 65, 98, 102 MIDI Set Up iv Pitch Shift 2U 97 Pre-Distortion VCF Fc 122, 124 Signal Routing 97 Pre-Distortion VCF Q 122, 124 ENSONIQ DP/4+ Reference Manual...
  • Page 192 Reflective “live” surfaces 79, 88, 115 Selecting 4 unit 183 Reflective surfaces (walls) 88, 93, 115 Selecting Config 20, 183 Regen Damping 89 Swapping 1 unit 173 Regeneration 54, VI, X Using a foot switch to alternate between 158 Defined X ENSONIQ DP/4+ Reference Manual...

  • Page 193: Reverse Reverb 2

    Rotating speaker effect 108 Optimal 5 Rotating Spkr 107 Signal paths 9 Rotor effect 107 Signal Processor i Routing 19 Signal routing 20 Routings 137 About 23 Rubbing compounds i Between Units 23 Rumble Filter 109 Symbols 23 ENSONIQ DP/4+ Reference Manual...

  • Page 194: Small Plate

    Simulator 122 Symmetrical table 74 Speakers iv Symphonic chorused sound 37 Special effect 104, 106 Syncopated repeats 53 Specs XXIII Synthesize 130 Spectrum Analyzer 128 Synthesized output 130 Speech 128, 130, V Synthesized stereo field 37 ENSONIQ DP/4+ Reference Manual...

  • Page 195: Tempo Delay

    TempoDelay Fine Tune 117 Tuning 76 Terms III Turntable rumble 109 Three parametric filters 118, 119 Turntables X Three-prong power cord ii Two mono foot switches 14 Threshold 39, 45, 72, 80 Two-prong power cords ii Timbres 130 ENSONIQ DP/4+ Reference Manual...
  • Page 196 White noise 110 Left Echo Time 62 Windshield wipers 57 Rate 61 Wire cutters 13 Right Delay Time 62 Woosh 95 Right Echo Time 62 Wrap 159 Sample & Hold Rate 62 Write•Copy 2 Width 61 ENSONIQ DP/4+ Reference Manual...
  • Page 197 Index XLR 2 Input Ground Loop 10 Ins and Outs 10 XLR cable 7 XLR Connector Defined X XLR to 1/4” cables 10 Zero crossing detection 97, 101 ENSONIQ DP/4+ Reference Manual...
  • Page 198 Song 3 Song 4 Song 5 Song 6 Song 7 Song 8 Song 9 Song 10 Song 11 Song 12 Song 13 Song 14 Song 15 Song 16 Song 17 Song 18 Song 19 Song 20 ENSONIQ DP/4+ Reference Manual...
  • Page 199 Feel free to copy this form and use it as a reference when creating programmable MIDI Program Change Maps on the DP/4+. Unit: Additional Information: Prg Chg Selects Preset Prg Chg Selects Preset Prg Chg Selects Preset Prg Chg Selects Preset ENSONIQ DP/4+ Reference Manual...

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