DigiTech QUAD4 User Manual
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DigiTech QUAD4 User Manual

DigiTech QUAD4 User Manual

4 in 4 out multi-effects processor
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  • Page 1 User’s Manual Please visit Digitech Studio Electronics on the World Wide Web at: http://www.digitech.com...
  • Page 2 Supplementary Information: The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC as amended by Directive 93/68/EEC. European Contact: Your Local DigiTech Studio Sales and Service Digitech Studio Office President of DigiTech Studio or International Sales Office 8760 S.

  • Page 3: Table Of Contents

    Quad 4 User's Manual Table Of Contents ................1 Introduction .

  • Page 4: Introduction

    In no event shall Digitech Studio or its dealers be liable for special or consequential damages, or from any delay in the perfor- mance of this warranty due to causes beyond their control.

  • Page 5: Section 1 - Setting Up

    • (1) PS0920 power supply • (4) Rack screws • (1) Digitech Studio Warranty Card Please save all packaging materials. They were designed to protect the unit from damage during shipping. In the unlike- ly event that the unit requires service, use only the factory supplied carton to return the unit.
  • Page 6 Quad 4 User's Manual 1e) Parameter Data Sections - There are four Parameter Data sections in the display. They are immediately below the Information line, and correspond with the <1> through <4> buttons on the front panel. Each section displays the current value of the indicated Parameter. Each section also has an arrow that shows which Parameter in the display is selected.

  • Page 7: Rear Panel Connectors

    4) MIDI OUT / THRU - Merges MIDI data generated by the Quad 4 with MIDI data received at the input. Please see pg. 31 for more information. 5) FOOTSWITCH - This jack allows connection of the Digitech FS300 3-button footswitch or any shorting-type footswitch. If using the Digitech FS300, button 1 increments through Programs, button 2 decrements through Programs, and button 3 bypasses the Quad 4's effects.
  • Page 8 Quad 4 User's Manual To Amplifier or Mixer From Instrument or Direct Source To Amplifier or Mixer POWER INPUT 9VAC 2.1A 50/60 Hz INPUTS OUTPUTS MANUFACTURED IN THE MIDI MIDI OUT/ OUTPUT LEVEL THRU FOOTSWITCH SALT LAKE CITY, UTAH Figure 1-3 In-Line Connection EFFECTS LOOP This application uses the Quad 4 in an effects loop of a mixing console.

  • Page 9: A Word About Bypass

    Quad 4 User's Manual REMEMBER: When you use this method to process stereo sources such as keyboards, the auxiliary sends on your console should be set up exactly opposite one another, as shown on channels 1 and 2 of Figure 1-5. Note that the left channel is sent to Aux 1, while the right channel is sent to Aux 2.

  • Page 10: Section 2 - Basic Functions Of The Quad

    Quad 4 User's Manual SECTION 2 - BASIC FUNCTIONS OF THE STUDIO QUAD 4 GETTING AROUND THE OPERATING SYSTEM The menu structure of the Quad 4 has been specially designed to be easy to use. The display shows the information you need, but to make things even easier for you, illumination of the front panel buttons offers additional operating information.

  • Page 11: Modifying Fx Module Parameters Example

    Quad 4 User's Manual 3) Select a Default for the selected effect Type The Default parameter allows you to select one of several effect settings stored in the Quad 4's library. For example, there are 13 Stereo Reverb defaults to choose from. Each default is available in any program that uses the same size effect module.

  • Page 12: Selcting Effect/Input/Output Configurations

    Quad 4 User's Manual SELECTING EFFECT AND INPUT / OUTPUT CONFIGURATIONS The Quad 4's ability to accommodate a number of different input and output routing configurations makes it an extremely useful and flexible tool for many different applications. The Quad 4 gives you the ability to select any one of the 16 different effect configurations within any program by performing the following procedure: 1.

  • Page 13: Linking A Parameter To A Modifier

    Quad 4 User's Manual For example, you can create an auto panner without using an auto panner module. Simply link an effect's output pan parameter to the LFO modifier and the LFO will move that parameter back and forth. This modifier can be a very useful weapon in the ongoing battle of new sound creation.

  • Page 14: Setting Up An Lfo Or Dynamic

    Quad 4 User's Manual Pressure or Aftertouch), L - 1 (LFO1), L - 2 (LFO2), or DYN (Dynamic). NOTE: Make sure you store any changes you make. See pg. 13 for more information SETTING UP AN LFO OR DYNAMIC MODIFIER To link an LFO to a parameter, please do the following: 1.

  • Page 15: Comparing Programs

    Quad 4 User's Manual COMPARING PROGRAMS During the course of editing Programs, you may find that you want to compare the edited version of the Program to the original, stored version. Fortunately, the Quad 4 provides you with this valuable A/B feature in the Compare function.

  • Page 16: Section 3 - Effects And Parameters

    Quad 4 User's Manual SECTION 3 - EFFECTS AND PARAMETERS ABOUT MODULES AND THE EFFECT CHARTS The Quad 4's diverse selection of effect modules allows you to achieve nearly endless combinations of effects and routings. To accomplish that goal, we've supplied you with several different module types in an effects configuration. The processing resources are divided one of four ways.

  • Page 17: Reverbs

    Quad 4 User's Manual REVERBS Reverberation is probably the most widely used effect because it allows you to simulate the sound reflection charac- teristics of almost any kind of room. In a real room, reverb is a result of sound reflecting off room surfaces such as the walls, floor, ceiling, and objects in the room.
  • Page 18 Quad 4 User's Manual Reverbs PARAM. DESCRIPTION FX: Lvl Controls the signal input level fed to the Module. Varies from OFF to 100%. Dry: Lvl Controls the level of the dry (uneffected) signal. Ranges from OFF to 100%. Balance Controls the left/right positioning of the dry signal in the stereo soundfield. Varies from -99 (all left) to 99 (all right).
  • Page 19 Quad 4 User's Manual Reverbs (continued) PARAM. DESCRIPTION The BLEND control cross-mixes reverberations from the left side into the right side and Blend vice-versa. This can be used to increase the realism of the simulated room by adding reverberations from different parts of the room to each channel. Varies from 0% to 99%. Prim &...

  • Page 20: Chorus And Flange

    Quad 4 User's Manual CHORUS AND FLANGE Both choruses and flangers use a Low Frequency Oscillator (LFO) to produce their rich, swirling effects. When you change the speed and depth parameters of modulation effects, you're actually controlling the frequency and ampli- tude of the LFO.
  • Page 21 Quad 4 User's Manual Choruses DESCRIPTION PARAM. FX: Lvl Controls the signal input level fed to the Module. Varies from OFF to 100%. Dry: Lvl Controls the level of the dry (uneffected) signal. Ranges from OFF to 100%. Balance Controls the left/right positioning of the dry signal in the stereo soundfield. Varies from -99 (all left) to 99 (all right).
  • Page 22 Quad 4 User's Manual Flangers PARAM. DESCRIPTION FX: Lvl Controls the signal input level fed to the Module. Varies from OFF to 100%. Dry: Lvl Controls the level of the dry (uneffected) signal. Ranges from OFF to 100%. Balance Controls the left/right positioning of the dry signal in the stereo soundfield. Varies from -99 (all left) to 99 (all right).

  • Page 23: Phasers

    Quad 4 User's Manual PHASERS Phasers create a copy of the original signal and modulate that new signal’s phase relationship to the original signal. When the two signals are reunited at the output, the modified signal, moving smoothly in and out of phase, causes continuous cancellations and reinforcements at different frequencies throughout the modulating cycle.

  • Page 24: Rotary Speaker Simluator, Tremolos, And Auto Panners

    Quad 4 User's Manual ROTARY SPEAKER SIMULATOR / TREMOLO / AUTO PANNER The Rotary Speaker Simluator allows you to emulate the classic rotating speaker sound, without the chiropractic problems that come with moving bulky speaker cabinets. Tremolos and Auto Panners are similar to one another because they use an LFO to modulate the level of the signal. This allows you to re-create the tremolo effects commonly found on vintage instrument amplifiers.

  • Page 25: Detuners And Pitch Shifters

    Quad 4 User's Manual DETUNERS / PITCH SHIFTERS Detuners are similar to pitch shifters, but the intervals between the detuned signal and the original are much small- er, usually expressed in cents (hundredths of a semitone). The Quad 4 uses percentages of semitones to express the shifted note's distance from the original.
  • Page 26 Quad 4 User's Manual Pitch Shifters PARAM. DESCRIPTION FX: Lvl Controls the signal input level fed to the Module. Varies from OFF to 100%. Dry: Lvl Controls the level of the dry (uneffected) signal. Ranges from OFF to 100%. Balance Controls the left/right posistioning of the dry signal in the stereo soundfield.

  • Page 27: Delays

    Quad 4 User's Manual DELAYS A delay produces discrete, repeating echoes of the source material at a specified interval. In digital delays, the input signal is "sampled" or recorded into memory, where it is held for the amount of time you specify with the delay time setting, after which the sample is replayed at the output.

  • Page 28: Eqs

    Quad 4 User's Manual EQUALIZERS The Quad 4 has a broad selection of equalizer Modules to cover virtually any need. Both mono and stereo modules are available. Remember that mono equalizers connected to stereo sources will always sum the stereo signal togeth- er for equalization (thus eliminating the stereo image).

  • Page 29: Noise Gate And Compressor

    Quad 4 User's Manual OTHER EFFECTS The Studio Quad 4 also offers a special menu of “Other” hard to find effects including: Samplers, Compressor, Noise Gate, Envelope Filter,Vocoder and a Vocal Eliminator which is ideal for Karaoke use. Other Effects PARAM.

  • Page 30: Multi Effects

    Quad 4 User's Manual MULTI EFFECTS MODULES The Studio Quad 4, Multi Effect Modules allow the User to combine either Delay and Chorus or Delay and Flange within one Effect module block. This is ideal for situations where the User needs to add another effect to the Effect Configuration, but is running low on signal processing resources.

  • Page 31: Section 4-In Levels And Utilities

    Quad 4 User's Manual SECTION 4 - INPUT LEVELS & UTILITIES AUTOMATIC INPUT LEVELING Proper input level adjustment can be the difference between an acceptable recording and a great recording. Fortunately, the Studio Quad 4 has the ability to automatically optimize your input levels based on the signal sent to the input(s).

  • Page 32: Midi Channel

    Quad 4 Owner's Manual Scrn Contrast MIDI Chnl %kHz %kHz %kHz CHANGED CHANGED MIDI CLIP IN 1 OUT 1 LEVEL 1 FACTORY PRG - CHANGED S-DISC ™ CLIP IN 2 OUT 2 USER PRG - CHANGED ROCESSING LEVEL 2 CLIP IN 3 OUT 3 FX EDIT PAGE...

  • Page 33: System Exclusive Device Channel / Midi Merge

    Quad 4 User's Manual STUDIOUSER changes to STUDIOFACT , indicating that the mapped number will recall the indicated Program number in the Factory bank. Pressing the <3> button again will toggle between the User and Factory banks. 4. Scrolling one notch above STUDIOFACT program 124 (or one notch below STUDIOUSER program 100) selects STUDIO BYP which allows you to bypass the Studio Quad 4 by sending it the selected MIDI pro- gram change number.

  • Page 34: System Dump

    Quad 4 User's Manual 3 . Press the <3> button and use the <Data> wheel to select the Program location where you want the Program dumped. 4. To initiate the dump, press <4>. The Information line briefly reads SENDING PROGRAM DUMP... after which it returns to the Program dump screen.

  • Page 35: Selectable Output Level

    Quad 4 User's Manual SELECTABLE OUTPUT LEVEL MODE The Studio Quad 4 offers you the ability to set your output level (-10 or +4dB). This option can be obtained within the utility menu and the procedure is as follows: 1. From Program mode, press the <Utility> button and the use the <Next Page> or <Prev Page> buttons to move to page 6 of the Utility menu and the display will appear as follows: Prog Autoload Out Level...

  • Page 36: Factory Reset

    Quad 4 User's Manual FACTORY RESET Allows you to erase all User Program and Utility settings at once and restore the Studio Quad 4 memory to its fac- tory condition. WARNING:This procedure will destroy and reset ALL User Programs in the Studio Quad 4's memory.

  • Page 37: Section 5- Appendix

    Quad 4 User's Manual SECTION 5 - APPENDIX MIDI IMPLEMENTATION CHART Function... Transmitted Recognized Remarks Basic Default 1-16 1-16 Memorized Channel Channel Default Mode 2, Mode 4 Mode Messages Mode2, Mode 4 Memorized Altered Note Number True Voice Velocity Note ON Note OFF After Key's...

  • Page 38: Effects List

    Quad 4 User's Manual EFFECT SIZE The following is a list of effects available in the Studio Quad 4. Both the module Type and the effect name appears on Page one of all FX Modules. Please note maximum delay times vary depending on the module Type being used. Please refer back to pg.14 for more information concerning Module types.

  • Page 39: Effect Configuration Chart

    Quad 4 User's Manual EFFECT CONFIGURATION CHART Configuration 2 (Series 3,4) Configuration 1 (Series Full) IN 1 OUT 1 IN 1 OUT 1 IN 2 OUT 2 IN 2 OUT 2 IN 3 OUT 3 IN 3 OUT 3 IN 4 OUT 4 IN 4 OUT 4...

  • Page 40: Quad 4 Specifications

    Quad 4 User's Manual STUDIO QUAD 4 SPECIFICATIONS A/D Converter: 20 bit, 128 x oversampled delta-sigma stereo D/A Converter: 20 bit 64 x oversampled delta-sigma stereo Sampling Frequency: 44.1 kHz DSP Section: Static-Dynamic Instruction Set computer(S-DISC II ® ) Digital Signal Path Width: 24 bits (144.5 dB) Internal Data Path Width: 48 bits (289 dB) Dynamic Delay Memory: 256k x 24 bits (5.0 seconds) Static Delay Memory: 256 24-bit registers (5.8 milliseconds)

  • Page 41: Factory Program List

    Quad 4 User's Manual STUDIO QUAD 4 FACTORY PROGRAM LIST TOP 10 4X4, 4X2 EFFECT CONFIG PROGRAMS 4:In / 2:Out FX Processor 1:Rev 2:Dly 3:Cho 4:Pch Thick Chorus>Delay Reverb 1:Hall 2:Plt 3:Rm: 4:GtRv Thickened Flange Panner 1:Comp 2:Comp 3:Comp 4:Comp SurfVerb 1:Gate 2:Gate 3:Gate 4:Gate Analog Tape Delay...

  • Page 42: Harmony Interval Charts

    Quad 4 User's Manual HARMONY INTERVAL CHARTS Interval Major Minor Harm.Minor Mel.Minor Dorian Mixolydian Lydian üOct ü7th ü6th ü5th ü4th ü3rd ü2nd ¨2nd ¨3rd ¨4th ¨5th ¨6th ¨7th ¨Oct Lydian Minor Whole Hlf-Whl Whl-Hlf Major Int. Int. Int. Int. Blues Int.
  • Page 43 International Distribution: 3 Overlook Drive, Unit 4 Amherst, New Hampshire 03031 U.S.A. FAX (603) 672-4246 Digitech Studio™, Studio Quad 4 ™, and S-DISC II™ are registered trademarks of the Harman Music Group Incorporated Copyright © 1998 the Harman Music Group Incorporated Printed In U.S.A.

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