Ensoniq DP/4 Parallel Effects Processor - Reference .

parallel effects processorR e f e r e n c e Ma n u a lVersion 2. 0DP/4

DP/4 Reference Manual:Written, designed, and illustrated by: Tom Tracy, Bill Whipple, Jon Dattorro, John SeniorCopyright 1995, 1996ENSONIQ Corp155 Great Valley ParkwayBox 3035Malvern, PA 19355-0735USAPrinted in U.S.A.All Rights ReservedPlease record the following information:Your Authorized ENSONIQ Dealer: Phone:Your Dealer Sales Representative:Serial Number of Unit: Date of Purchase:Your Authorized ENSONIQ Dealer is your primary source for service and support. The above information will be helpful incommunicating with your Authorized ENSONIQ Dealer, and provide necessary information should you need to contactENSONIQ Customer Service. If you have any questions concerning the use of this unit, please contact your AuthorizedENSONIQ Dealer first. For additional technical support, or to find the name of the nearest Authorized ENSONIQ RepairStation, call ENSONIQ Customer Service at (610) 647-3930 Monday through Friday 9:30 AM to 12:15 PM and 1:15 PM to6:30 PM Eastern Time. Between 1:15 PM and 5:00 PM we experience our heaviest call load. During these times, there may bedelays in answering your call.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 consentfrom ENSONIQ Corp. The DP/4 software/firmware is copyrighted and all rights are reserved by ENSONIQ Corp.Although every effort has been made to ensure the accuracy of the text and illustrations in this manual, no guarantee is made orimplied in this regard.IMPORTANT:“This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordancewith the manufacturer's instructions, may cause interference to radio and television reception. It has been designed to complywith the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, whichare designed to provide reasonable protection against such interference in a residential installation. However, there is noguarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio ortelevision reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct theinterference by one or more of the following measures.”* reorient the receiving antenna* relocate the instrument with respect to the receiver* move the instrument away from the receiver* plug the instrument into a different outlet so that the instrument and receiver are on different branch circuits“If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. Theuser may find the following booklet prepared by the Federal Communications Commission helpful: 'How to Identify andResolve Radio-TV Interference Problems.' This booklet is available from the U.S. Government Printing Office, Washington,D.C. 20402. Stock No. 004-000-00345-4.”CAUTION! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalenttype recommended by the manufacturer. Discard used batteries according to manufacturer's instructions.In order to fulfill warranty requirements, the DP/4 should be serviced only by an Authorized ENSONIQ Repair Station. TheENSONIQ serial number label must appear on the outside of the unit, or the ENSONIQ warranty is void. ENSONIQ, DP/4 , TS-10, TS-12, and ASR-10 are trademarks of ENSONIQ Corp.Part # 9310 0177 01 - DModel # MM-86

Table of ContentsTable of ContentsDP/4 List of TipsPrefaceWelcome!.iThe Effects.iParallel Processing.iClean Up and Maintenance.iPower.iiPolarization and Grounding.iiAC Line Conditioning.iiiGuidelines for using the DP/4 .iiiTemperature Guidelines.iiiRack Mounting Guidelines.iiiAmplifying Your DP/4 Through a Home Stereo System.ivPowering Up Your DP/4 In a MIDI Configuration.ivReinitializing the DP/4 .vTo reinitialize the DP/4 .vBattery Replacement Guidelines.viAvailable Options for Your DP/4 .viNeed More Help?.viiSection 1 — Controls & Basic FunctionsFront Panel Controls.2Rear Panel Connections.4DP/4 RULES.5Setting Levels.5Setting the Level Switch.5To set the input level(s).5To set the output level(s).5Using Headphones with the DP/4 .6The Input 1 Jack — Front Panel vs. Back Panel.7A Note About the Input and Output Jacks.8Ground Loops.9Using XLR Ins and Outs with the DP/4 .10A Note about the Foot Switches.11About Mono Foot Switches.11Four-On-The-Floor.12An Application For Using Two Stereo Foot Switches to Bypass Effects.12HOT MODS!.13Replace the Mono Foot Switch Plug with a Stereo Plug.13Build a Splitter Box to Merge Two Mono Foot Switches into One Stereo Jack.14DP/4 Modes.15Select Mode.15Edit Mode.15System MIDI Mode.15Button Names.15About Select Mode.16About Edit Mode.17Edit Buffer.17About System MIDI Mode.18About Presets.19ENSONIQ DP/4 Reference Manual1

Table of ContentsInput Configurations.19One Source Input Configuration.19Two Source Input Configuration.19Three Source Input Configuration.19Four Source Input Configuration.19Selecting Config Presets.20Selecting a Config preset will.20To select a Config preset.20How the Config Type Affects Selecting Presets.21Replacing the Algorithm in a Single Unit.22Loading a 2 Unit Preset While in a 1 Source Config.22About Signal Routing.23Signal Routing Between Units.23Understanding Serial, Parallel and Feedback Signal Routing.24Serial Routing.24Parallel Routing.24Feedback Routing.24Bypassing Units.25Quick Tips and Shortcuts.25Section 2 — AlgorithmsList of Algorithms.28Understanding DP/4 Algorithms.29About the Algorithm Parameters.29To Display the Algorithm Parameters.29Programming Algorithms.29When are New Algorithms Loaded into the ESP Chips?.30Algorithm Abbreviations.30Algorithm Parameters.30Editing Algorithm Parameters.31To modify the parameters of the algorithm in a unit.31Mix and Volume Parameters.32Algorithm Modulators.32Modulating Effects Parameters with the CV Pedal.33Crossfading Effects.343.3 SEC DDL 2U.35Using the Instant Replay Feature.368 VOICE CHORUS.37DE-ESSER.39DIGITAL TUBE AMP.41DUAL DELAY.43DUCKER / GATE.45DYNAMIC TUBE AMP.47EQ - CHORUS - DDL.49EQ - COMPRESSOR.51EQ - DDL - WITH LFO.53EQ - FLANGER - DDL.55EQ - PANNER - DDL.57EQ-TREMOLO-DDL.59EQ - VIBRATO - DDL.61EXPANDER.63FAST PITCH SHIFT.65FLANGER.66GATED REVERB.672ENSONIQ DP/4 Reference Manual

Table of ContentsGUITAR AMP 1, GUITAR AMP 2.70GUITAR AMP 3.72GUITAR AMP 4.74GUITAR TUNER 2U.76HALL REVERB.77INVERSE EXPANDER.80KEYED EXPANDER.82LARGE PLATE.84LARGE ROOM REV.86MULTI TAP DELAY.89NO EFFECT (BYPASS EFFECT).90NON LIN REVERB 1, 2, 3.91PARAMETRIC EQ.94PHASER-DDL.95PITCH SHIFT 2U.97PITCHSHIFT - DDL.99PITCH SHIFTER.101REVERSE REVERB 1.103REVERSE REVERB 2.105ROTATING SPEAKER.107RUMBLE FILTER.109SINE/NOISE GEN.110SMALL PLATE.111SMALL ROOM REV.113SPEAKER CABINET.116TEMPO DELAY.117TUNABLE SPEAKER.118TUNABLE SPEAKER 2.119VAN DER POL FILTER.121VCF - DISTORT 1.122VCF - DISTORT 2.124VOCAL REMOVER.126How to use the Vocal Remover.126VOCODER.128How the Vocoder Works.128Setting Up the Vocoder.129Making the Right Connections.129Selecting the Vocoder Preset.129Using the Vocoder.129Section 3 — Config ParametersWhat is a Config?.132Config Presets.132About Signal Routing.132Input Configurations.133One Source Input Configuration.133Two Source Input Configuration.133Three Source Input Configuration.133Four Source Input Configuration.133Selecting a Config Preset.134To select a Config preset.134Editing a Config Preset.134To edit a Config Preset.1341 Source Config.135ENSONIQ DP/4 Reference Manual3

Table of ContentsAvailable ABCD Routings.1372 Source Config.1403 Source Config.1424 Source Config.144Section 4 — System MIDIAbout System MIDI.146To set the System parameters.146Shortcuts for Selecting System MIDI Parameters.147Unit Specific Parameters.148How the DP/4 Uses MIDI Channels.149If it does not seem to be working.150Program Change-to-Preset Map Editor.151List of MIDI Controller Names.153System Global Parameters.154Source List.155Song Editor.156Using the Song Editor Feature.157Using a Foot Switch to Alternate Between Two Presets.158System Exclusive Dump.165System Utility Functions.166Soft Reset.166Initializing the RAM Presets.166To initialize the RAM presets.166Reinitializing the DP/4 .167To reinitialize the DP/4 .167System Diagnostic Parameters.167Section 5 — StorageInternal Storage.170The Preset Memory Protect Switch.170Saving Presets.171To Name and Save a Preset.171List of Alpha-Numeric Characters.172Bailing Out.172Advanced Features.173Switching Preset Types when Saving.173Saving a 2 Unit Preset While in a 1 Source Config.173Swapping 1 Unit Presets.173Copying a 1 Unit Preset to Another Unit.174Loading a 2 Unit Preset While in a 1 Source Config.174Copying Presets.175To Copy a Preset.175MIDI System Exclusive Storage.176Sending MIDI Sys-Ex Messages to another DP/4 or to a Storage Device.176To Send DP/4 Data Out via MIDI System Exclusive Dump.176Receiving MIDI System Exclusive Dumps with the DP/4 .178Problems?.178Using the Preset Parameter Worksheet.1794ENSONIQ DP/4 Reference Manual

Table of ContentsSection 6 — PresetsQuick Steps to Hear Presets.183To Select 1 Unit Presets.183To Select 2 Unit Presets.183To Select 4 Unit Presets.183To Select Config Presets.1831-Unit RAM Presets.1841-Unit ROM Presets.1862-Unit RAM Presets.1882-Unit ROM Presets.1904-Unit RAM Presets.1924-Unit ROM Presets.194Config RAM Presets.196Config ROM Presets.198AppendixDP/4 MIDI Implementation.IGlossary.IIIDP/4 Algorithm XIIIIndexChartsSong Step WorksheetMIDI Program Change Map WorksheetDP/4 Preset Parameter WorksheetENSONIQ DP/4 Reference Manual5

List of TipsDP/4 List of TipsUsing Four Mono Foot Switches with the DP/4 .14Shortcuts for locating System MIDI parameters.18To Get to the First Parameter.25To Advance by Screens.25To Quickly Advance Through the Parameters.25To Undo Your Last Parameter Edit.25To Restore Parameter Settings.25To Quickly Center a Signed Parameter.25A Quick Way to Edit the Program Change Map.151Changing Modulation Sources Quickly.155Using Different Combinations of Bypassed/Un-bypassed in a Song.156A Quick Way to get to the Preset Memory Protect display.170Using the Unit buttons to Select the Alphanumeric Characters for Naming Presets.172Setting the Preset Memory Protect Switch to Prevent Accidently Erasing Presets.1726ENSONIQ DP/4 Reference Manual

PrefaceWelcome!Congratulations, and thank you for purchasing the ENSONIQ DP/4 Parallel Effects Processor.The DP/4 creates 24-bit digital effects using four independent processors, and features fourindependent inputs and outputs with full internal mixing capabilities. The DP/4 is equally athome in a professional recording studio, home studio, guitar rig, MIDI setup, or PA s

ENSONIQ DP/4 Reference Manual i Welcome! Congratulations, and thank you for purchasing the ENSONIQ DP/4 Parallel Effects Processor. The DP/4 creates 24-bit digital effects using four independent processors, and features four independent inputs and outputs with full internal mixing capabilities. The DP/4 is equally at