Rocktron MULTVALVE User Manual
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Rocktron MULTVALVE User Manual

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ANUAL
May be covered by one or more of the following: U.S. Patents #4538297, 4647876, 4696044, 4745309, 4881047, 4893099, 5124657, 5263091, 5268527, 5319713,
5333201, 5402498, 5493617 and 5638452. Other patents pending. Foreign patents pending.

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  • Page 1 ANUAL May be covered by one or more of the following: U.S. Patents #4538297, 4647876, 4696044, 4745309, 4881047, 4893099, 5124657, 5263091, 5268527, 5319713, 5333201, 5402498, 5493617 and 5638452. Other patents pending. Foreign patents pending.
  • Page 2 Also, bundle audio cables separately from the AC power cables. These steps will help insure compliance with the Directive(s). For more information about other Rocktron products, please see your local dealer or one of our importers closest to you (listed on the enclosed warranty sheet).

  • Page 3: Table Of Contents

    Restoring the MultiValve memory (all presets): ................62 Restoring the MultiValve controller assignments: ................63 Selecting a Power On Preset ....................... 64 Using the MultiValve with a Rocktron All Access™ in REMOTE mode ..........65 Selecting a Configuration ........................70 8. Appendix .................... 71 ERROR MESSAGES ...........................

  • Page 4: Introduction

    ™ Congratulations on your purchase of the Rocktron MultiValve guitar effects proces- ™ sor! The MultiValve is a 24-bit DSP processor providing tube warmth to a host of high quality digital effects, as well as a number of practical features to enhance any guitar rig.
  • Page 5 PRECAUTIONS NOTE: IT IS VERY IMPORTANT THAT YOU READ THIS SECTION TO PROVIDE YEARS OF TROUBLE FREE USE. THIS UNIT REQUIRES CAREFUL HANDLING. All warnings on this equipment and in the operating instructions should be adhered to and all operating instructions should be followed. Do not use this equipment near water.

  • Page 6: Quick Setup

    SELECTING A PRESET STEP 1 Turn the PRESET control to select the desired preset. The new preset will be recalled automatically. CHANGING PRESET PARAMETERS STEP 2 Turn the FUNCTION SELECT control to the desired effect or utility function. STEP 3 Turn the PARAMETER SELECT control to the parameter you wish to alter under the selected effect or utility function.
  • Page 7 POWER switch PRESET control This control scrolls through and instantly recalls the successive presets. TAP DELAY/RATE button This button is used to select a new delay time or modulation rate based on the length of time occurring between two taps. See Section 7: "Tap Delay" for more information. DISPLAY panel The DISPLAY panel provides 16 characters consisting of 14 segments each.

  • Page 8: Front Panel

    Front Panel Desccription FUNCTION SELECT control ™ This control allows access to each function of the MultiValve . These functions include: Global Delay Chorus Channel Switches MIDI Channels Mixer Reverb Pitch Shift Title Edit MIDI Dump/Load Tube HUSH Tremolo Rotary Speaker Controller Assig Factory Restore Compressor...

  • Page 9: Rear Panel

    ™ MultiValve PHANTOM POWER jack This 2.5mm PIN jack offers the ability to power Rocktron MIDI foot controllers from a 7- pin MIDI cable which connects from the Rocktron MIDI foot controller to the MIDI IN ™ jack on the rear panel of the MultiValve .
  • Page 10 Rear Panel Description MIDI THRU/OUT jack This standard 5-pin DIN connector can be connected to the MIDI IN jack of another device via a standard MIDI cable. There are limitations to the number of devices that can be chained (or series connected) in this fashion. Note: Inherently in MIDI there is a limit to the number of devices which can be chained together (connected in series).

  • Page 13: Connections

    Connections...

  • Page 14: Operating Format

    The MultiValve provides 128 stored sounds called presets . Any of the 128 presets can be called up at any time via the front panel PRESET control (used to both select and recall a preset). The root of each preset’s sound is its configuration . The MultiValve provides two main effect configurations—the Classic configuration and the Rotary configuration.
  • Page 15 Block Diagrams...
  • Page 16 Block Diagrams...

  • Page 17: Multivalve Functions And Parameter Descriptions

    Functions and Parameter Descriptions Each MultiValve preset is divided into individual blocks called functions (such as "Mixer", "Reverb", etc.). Within each function is a set of controls which allow you to manipulate various aspects of that function. These controls are called parameters . The setting of each of the parameters determines the overall sound of each MultiValve preset.

  • Page 18: Global Function

    However, a MIDI program change will disable the mute (mute = out) and execute the program change. The MUTE parameter can be assigned to a MIDI controller number for use with a MIDI device (such as a Rocktron All Access or Rocktron MIDI Mate). DIRECT The DIRECT parameter determines whether the direct signal is switched in or out of the signal path.

  • Page 19: Mixer Function

    Functions and Parameter Descriptions The next function displayed when turning the FUNCTION SELECT control is the Mixer function. The Mixer function parameters are included in all presets—regardless of which effects are active for the current preset - although the parameter values stored in this function are only for the currently recalled preset.

  • Page 20: Tube Mode Function

    Functions and Parameter Descriptions The Tube Mode function is accessible in all presets—regardless of the current configuration recalled. The Tube Mode function allows the input signal path to be routed through a high quality 12AX7 preamp tube to add a warm, vintage sound to the MultiValve effects used. The PARAMETER SELECT control will allow you to access each of the following Tube Mode parameter: TUBE MODE...

  • Page 21: Hush Function

    Functions and Parameter Descriptions The HUSH ® function is accessible in all presets—regardless of the configuration currently recalled. HUSH is Hush Systems’ patented single-ended noise reduction system. The HUSH system contained in the MultiValve is a fully digital implementation of HUSH achieved through Digital Signal Processing (DSP), and is modeled after the latest HUSH design.

  • Page 22: Compressor Function

    Functions and Parameter Descriptions Compression is often used to maintain an even level when using clean tones, and is also used to increase sustain when using high gain distortion. The PARAMETER SELECT control will allow you to access each of the following Compressor parameters: COMPRESR I/O The COMPRESSOR I/O parameter determines whether the compres-...

  • Page 23: Eq Function

    Functions and Parameter Descriptions The EQ function provides full parametric control and allows you shape the tone of the input signal before it reaches each of the effect blocks. The PARAMETER SELECT control will allow you to access each of the following EQ parameters: EQ I/O The EQ I/O parameter determines whether the EQ circuit is active or...

  • Page 24: Delay Function

    Functions and Parameter Descriptions Delay provides a reproduction of the input signal, occurring at a prescribed time (usually expressed in milliseconds) following the input signal. The MultiValve provides two discrete delays (Delay 1 and Delay 2), each of which has its own set of parameters to determine its particular characteristics.
  • Page 25 Functions and Parameter Descriptions SOURCE 2 This parameter is used to select whether the Source 2 input will be the VOICE 2 output from the previous effect in the signal chain or the direct signal. In configurations where there is no effect immediately preceding the delay, both Source 1 and Source 2 will be the direct signal.

  • Page 26: Reverb Function

    Functions and Parameter Descriptions Reverb is a multitude of echos spaced so close together that, to the human ear, seem as a single continuous sound. These echos gradually decrease in intensity until they are ultimately absorbed by the boundaries and obstacles within a room. As the sound waves from the sound source strike the boundaries of a room, a portion of the energy is reflected away from the obstacle while another portion is absorbed into it - thereby causing both the continuance of sound as well as the decaying or “dying out”...

  • Page 27: Tremolo Function

    Functions and Parameter Descriptions The Tremolo effect continuously varies the volume of the signal. The PARAMETER SELECT control will allow you to access each of the following Tremolo parameters: TREMOLO I/O The TREMOLO I/O parameter determines whether the tremolo circuit is active or bypassed for the current preset.

  • Page 28: Phaser Function

    Functions and Parameter Descriptions Phase shifting involves splitting the input signal into two signals, then shifting the phase of different frequencies of one signal before mixing it back with the original signal. The PARAMETER SELECT control will allow you to access each of the following Phaser parameters: PHASER I/O The PHASER I/O parameter determines whether the phase shift circuit is...

  • Page 29: Flanger Function

    Functions and Parameter Descriptions Flanging splits the input signal into two individual delayed signals (Voice 1 and Voice 2) , then modulating the delayed signals so that, when summed back with the direct signal, phase cancellations will occur at some frequencies while peaks in the response will occur at others.

  • Page 30: Chorus Function

    Functions and Parameter Descriptions The Chorus effect in the MultiValve is produced by detuning two delayed signals (Voice 1 and Voice 2), then modulating the detune effect so that the amount of pitch detune is constantly varying. Using different detune amounts, modulation rates, modula- tion depths and pan settings for each delayed signal will produce a greater perceived spaciousness.

  • Page 31: Pitch Shift Function

    Functions and Parameter Descriptions Pitch Shifting is used to change the pitch of the input signal to produce a harmony note based on the input signal. The harmony voice may be of any fixed interval - up to one octave above the input signal to two octaves below - and is selected in 20-cent incre- ments.
  • Page 32 (each step equals 20 cents).This allows for smooth pitch change when an expression controller (such as a volume pedal used with a Rocktron All Access or MIDI Mate foot controller) is assigned to the PITCH parameter to change the pitch by remote means.

  • Page 33: Auto Pan Function

    Functions and Parameter Descriptions The next function displayed when turning the FUNCTION SELECT control is the Auto Pan function. The Auto Pan effect auomatically pans between left and right when operat- ing in stereo mode. (If operating in mono, the Auto Pan effect does not operate.) The PARAMETER SELECT control will allow you to access each of the following Auto Pan parameters: AUTO PAN I/O...

  • Page 34: Rotary Speaker Function

    Functions and Parameter Descriptions The next function displayed when turning the FUNCTION SELECT control is the Rotary Speaker function. The Rotary Speaker effect simulates the classic rotating speaker popular with guitarists and keyboard players. It is designed to mimic the charac- teristics of the classic mechanical rotating speaker with added versatility afforded by DSP.

  • Page 35: Speaker Simulator Function

    Functions and Parameter Descriptions The Speaker Simulator function provides a realistic approximation of a miked speaker cabinet for applications involving connecting the MultiValve directly to a mixing console, recording system or other full range system. The PARAMETER SELECT control will allow you to access each of the following Speaker Simulator parameters: SPKR SIM I/O The SPEAKER SIMULATOR I/O parameter determines whether the...
  • Page 36 Functions and Parameter Ranges (The actual functions displayed are configuration-dependent) OUTPUT Stereo, Mono -10dB to +30dB HUSH OFFSET Out, In MUTE Out, In DIRECT - to +6dB LEFT DIR - to +6dB RIGHT DIR - to +6dB EFFECT LEVEL DIRECT Pre, Post Direct<0 to 100>Effect PHS DIR/EFF...
  • Page 37 Functions and Parameter Ranges DLY TIME1 0ms to 1000ms FINE 1 0ms to 9ms DLY RGN 1 - to 0dB DELAY OUT 2 - to 0dB DLY PAN2 Left<0 to 100>Right DLY TIME2 0ms to 1000ms FINE 2 0ms to 9ms DLY RGN 2 - to 0dB D>SPILLOVER...
  • Page 38 Functions and Parameter Ranges CHORUS I/O Out, In CRS OUT 1 - to 0dB CRS PAN 1 Left<0 to 100>Right CRS DPTH 1 0 to 100 CRS RATE 1 0 to 254 CRS>DLY1 0ms to 148ms TIME1 32nd, 16th, 8th, Triplet, ¼, ½, or None CRS OUT 2 - to 0dB CRS PAN 2...

  • Page 39: Operating The Multivalve

    Step 1 Turn the PRESET control to the desired preset you wish to recall. The selected preset will be recalled automatically.

  • Page 40: Changing Preset Parameters

    ™ Operating the MultiValve Step 1 Turn the FUNCTION SELECT control to select the function heading which contains the parameter(s) you wish to change. Step 2 Turn the PARAMETER SELECT control to the specific parameter you wish to change. Step 3 Turn the PARAMETER ADJUST control to alter the parameter value.

  • Page 41: Switching Channels On Amplifiers And Preamps Via The Multivalve

    ™ Operating the MultiValve The MultiValve ™ allows you to switch channels on an amplifier or preamp by connecting a RTS cord from the ™ "CHANNEL SWITCH" jack on the rear of the MultiValve to the "FOOTSWITCH" jack on the remote device(s). A single ™...
  • Page 42 ™ Operating the MultiValve Step 4 Press the STORE button to save the condition of Channel Switch 1 (if changed). "STORED" will flash briefly on the display. Step 5 Turn the PARAMETER SELECT control one step further clockwise to "CHAN SW 2". Step 6 Use the PARAMETER ADJUST control to select the on/off condition of Channel Switch 2.

  • Page 43: Editing A Preset Title

    ™ Operating the MultiValve Step 1 To begin the Title Edit function, turn the FUNCTION SELECT control clockwise until the ™ MultiValve displays "TITLE EDIT". Step 2 Turn the PARAMETER SELECT control clockwise to initiate the Title Edit mode. Turning this control will also select the character location to be edited.
  • Page 44 ™ Operating the MultiValve Step 5 After all the characters have been edited as needed, press the STORE button to save the new ™ title memory. The MultiValve will flash "STORED" briefly. Note: The STORE button must be pressed to save the new title. Exiting the Title Edit function before pressing the STORE button will erase any editing that was done in Title Edit.

  • Page 45: Controller Assignments

    The Controller Assignment option also lets you store an upper and lower parameter value limit which the control- ™ ™ ler cannot exceed. For example, when using an expression pedal with a Rocktron All Access or MIDI Mate footswitch to send continuous control changes to control the "PITCH" parameter, an upper limit of +300 can be set and a lower limit of -200 can be set - even though the actual parameter range is from +1200 to -2400.
  • Page 46 ™ Operating the MultiValve Step 3 Use the PARAMETER ADJUST control to select the controller number to be assigned to the PA-A parameter. Any number from 0 to 120 may be selected, as well as OFF (will not respond to MIDI control changes). Match the number selected for this parameter with the controller number on the MIDI transmitter.
  • Page 47 ™ Operating the MultiValve ™ Note: The MultiValve allows you to select an upper and lower value limit which the parameter cannot exceed. For example, if a parameter has a value range from - to 0dB, yet you would like the range of the parameter to vary from only -12dB to -2dB, you may set a lower limit of -12 and an upper limit of -2 via the Upper and Lower Limit parameters.
  • Page 48 ™ Operating the MultiValve Use the PARAMETER ADJUST control to select the lowest value which the parameter is Step 12 not to fall below through MIDI control changes. After selecting a value for the lower limit, press the STORE button to save it. "STORED" will Step 13 flash briefly on the display.

  • Page 49: Copying Multivalve Presets, Titles And Controller Assignments

    ™ Operating the MultiValve The Copy function allows you to copy any preset, preset title or controller assignment into any other preset location instantly. Copying presets: Turn the FUNCTION SELECT control to "COPY". Step 1 Step 2 Turn the PARAMETER SELECT control one step clockwise to access the "PR> XX to >PR XX"...
  • Page 50 ™ Operating the MultiValve Step 6 ™ After flashing "STORED", the MultiValve will display "COPY TITLE TOO?". This allows you to copy the title from the copied preset into the new location as well. To copy the title, press the STORE button a second time. "STORED" will flash briefly before the MultiValve ™...
  • Page 51 ™ Operating the MultiValve Step 5 Press the STORE button to copy the selected title into the selected preset location. "STORED" will flash briefly before displaying the preset title at its new location. Copying controller assignments: Step 1 Turn the FUNCTION SELECT control to "COPY". Step 2 Turn the PARAMETER SELECT control three steps clockwise to access the "CA>...

  • Page 52: Tap Delay

    1. By tapping the TAP DELAY/RATE button on the front panel of the MultiValve , or 2. By tapping a momentary footswitch connected to the rear panel TAP DELAY/RATE FOOTSWITCH jack. 3. By using a Rocktron All Access ™ in Remote mode with the MultiValve ™...

  • Page 53: Program Changes

    Program Changes allow for different MIDI program numbers to be assigned to MultiValve preset numbers. For example, MIDI program #58 can be mapped to MultiValve preset #34. Then, when program #58 is selected from a MIDI transmitting device (such as a Rocktron All Access foot controller), preset #34 will be recalled on the MultiValve.
  • Page 54 Operating the MultiValve Step 5 If "MAP" has been selected, turn the PARAMETER SELECT control one step clockwise to display the current Program Changes mapping assignments. Step 6 The number on the left of the display is the MIDI program number (or the number sent via a MIDI footswitch or other MIDI transmitter).

  • Page 55: Midi Channels

    Operating the MultiValve The MultiValve can receive MIDI commands from other MIDI transmitting devices, as well as transmit MIDI program changes to other MIDI-based equipment when a preset is recalled on the MultiValve. The MIDI Channels function allows you to select the MIDI channels that the MultiValve will receive and transmit MIDI information on. Step 1 Turn the FUNCTION SELECT control clockwise until the MultiValve displays "MIDI CHANNELS".
  • Page 56 Operating the MultiValve Step 6 Turn the PARAMETER ADJUST control to select the channel that the MultiValve will transmit a MIDI program change on. You may select channels 1-16 or OFF (will not transmit a MIDI program change). Step 6 Press the STORE button to save the new MIDI Transmit channel.

  • Page 57: Midi Dump/Load

    Operating the MultiValve Any or all of the MultiValve presets may be dumped to a sequencer or another MultiValve via system exclusive messages. The information exchanged when performing a MIDI Dump consists of parameter values, title characters and controller assignment information. When dumping a single preset into another MultiValve, the dumped preset may be loaded into any preset location on the receiving MultiValve.
  • Page 58 Operating the MultiValve Step 4 Turn the PRESET control on the transmitting MultiValve to the preset that is to be dumped into the receiving MultiValve. As the PRESET control is turned, the preset number will be displayed in the first three characters of the display. TRANSMITTING MULTIVALVE Step 5 Use the PRESET control on the receiving MultiValve to select the preset location to store the...

  • Page 59: To Dump A Single Multivalve Preset Into A Sequencer

    Operating the MultiValve To dump a single MultiValve preset into a sequencer Note: When performing data dumps to and from the MultiValve, always perform the dump in real time sequence mode. This will ensure that data loaded back into the MultiValve is not sent faster than the MultiValve can receive it.
  • Page 60 (i.e. strings 1-254 are presets, titles, controller information and 2- tap delay information; string 255 contains program mapping information; and string 256 contains miscellaneous information. Contact Rocktron Corporation for information on how to receive a detailed MIDI spec).

  • Page 61: To Reload User Data From A Sequencer

    Operating the MultiValve To reload user data from a sequencer Connect a standard MIDI cable from the MIDI OUT of the transmitting sequencer to the Step 1 MIDI IN on the receiving MultiValve. IMPORTANT: Do not allow a looping connection from the MIDI OUT/THRU of the receiving MultiValve back to the MIDI IN of the transmitting sequencer.
  • Page 62 Operating the MultiValve Step 4 Play back the data stored on the sequencer. The MultiValve will display the data strings as it is storing them. Each data string will appear with the word "LOADED". After all the user data has been loaded, the MultiValve will display "LOAD COMPLETE". Do not play back the data from the sequencer faster than it was loaded, as errors may occur (errors may also occur if any knob is turned or any button is pressed before the message "LOAD COMPLETE"...

  • Page 63: Factory Restore

    Operating the MultiValve The Factory Restore function allows you to restore altered MultiValve presets to their original condition as shipped from the factory. Either the entire MultiValve memory can be restored, a single preset can be restored to any preset location, or the controller information alone can be restored. Restoring a single factory preset: Step 1 Turn the FUNCTION SELECT control clockwise to "FACTORY RESTORE".
  • Page 64 Operating the MultiValve !! CAUTION !! Pressing the STORE button at this time will overwrite the current preset with the displayed factory preset. Step 5 Press the STORE button to begin restoring the selected preset into the selected location. After the process is completed, the display should read "ERRORS 0". This represents the number of bytes that the MultiValve found did not initialize properly.

  • Page 65: Restoring The Multivalve Memory (All Presets)

    Operating the MultiValve Restoring the MultiValve memory (all presets): !! CAUTION !! This procedure will permanently erase all user presets (1-128) and replace them with the original factory presets. If you have altered and stored presets which you do not want to erase, do not perform the following procedure.

  • Page 66: Restoring The Multivalve Controller Assignments

    The controller assignments for the MultiValve can also be reinitialized without affecting presets and other stored information. Reinitialization of the controller assignments is necessary when setting up the MultiValve to operate in remote mode with a Rocktron All Access footswitch.

  • Page 67: Selecting A Power On Preset

    Operating the MultiValve The MultiValve allows you to store a Power On preset which will always be recalled when the unit is turned on. Step 1 Turn the PRESET control to the preset number you wish to be recalled each time the unit is turned on.

  • Page 68: Using The Multivalve With A Rocktron All Access™ In Remote Mode

    Operating the MultiValve ™ A Rocktron All Access MIDI footswitch can be configured as a dedicated remote control for the MultiValve— allowing direct access to specific MultiValve features and parameters from the footswitch at any time. To use an All Access footswitch as a dedicated remote, connect the MIDI OUT of the All Step 1 Access to the REMOTE jack of the MultiValve using a 7-pin MIDI cable, as shown below.
  • Page 69 Operating the MultiValve Step 3 Turn the FUNCTION SELECT control clockwise to "REMOTE CONTROL". Step 4 Turn the PARAMETER SELECT control one step clockwise to display "REMOTE". Turn the PARAMETER ADJUST control to select "ON". Step 5 Press the STORE button to save the Remote on/off status. "STORED" will flash briefly. Step 6 Step 7 If the MultiValve titles are to be displayed on the All Access, turn the PARAMETER SE-...
  • Page 70 Operating the MultiValve To set up the All Access for remote operation, perform these steps from the All Access SETUP program: (See the All Access user's manual for detailed information on editing the All Access) Set the Operating Mode to "REMOTE". Step 8 Step 9 Set the Bank Size to "5".
  • Page 71 Operating the MultiValve Upon proper setup and connection of the MultiValve and All Access units, the All Access will provide the functions shown above when a "Classic" configuration preset is recalled.
  • Page 72 Operating the MultiValve Upon proper setup and connection of the MultiValve and All Access units, the All Access will provide the functions shown above when a "Rotary" configuration preset is recalled.

  • Page 73: Selecting A Configuration

    Operating the MultiValve The MultiValve allows you to select which configuration— Classic or Rotary —is active for the current preset. Step 1 Turn the FUNCTION SELECT control fully clockwise to "CONFIG SELECT". Turn the PARAMETER SELECT control to access the "XXXXXXX SELECTED" param- Step 2 eter.

  • Page 74: Appendix

    Error Messages Message Possible Reason Corrective Action CODE BYTE IS NOT CORRECT IN MAKE SURE EEPROM IS TIGHT IN EEPROM MEMORY. SOCKET. MAKE SURE WITHIN CORRECT OPERATING TEMPERATURE. DISCONNECT MIDI CORD AT MIDI MIDI INFORMATION IS BEING RECEIVED AT THE MIDI IN AT THE IN OF TRANSMlTTING SAME INFORMATION IS BEING MULTIVALVE.

  • Page 75: Midi Implementation

    MIDI Implementation MultiValve Date: July 23, 1997 Version: 1.0 FUNCTION TRANSMITTED RECOGNIZED REMARKS * Actual MIDI program value sent is 0-127, corresponding to presets 1-128. Optional implementation of program mapping also available. ** The control number may be from 0-120, or OFF. An upper and lower range may also be specified for most parameters.

  • Page 76: Technical Data

    Effects Level = - Dry Frequency Response (10Hz to 100kHz) +.25, -2dB (10Hz to 30kHz) ±.25dB Wet Frequency Response (20Hz - 14.5kHz) +5, -3dB Rocktron Corporation 2870 Technology Drive Rochester Hills, MI 48309 Customer Service: (248) 853-3055 Fax Number: (248) 853-5937 World Wide Web: http://www.rocktron.com...

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