
DP4 Editor
Turn a knob on the DP/4 or on screen, and the other one follows.
The editor and the DP/4 stay in sync in both directions, one parameter at a time, so you never wait for a bank dump.
$49.00
One license covers 2 computers
- Standalone app and VST3 plug-in for Mac and Windows
- AU and AUv3 on Mac
- Ensoniq DP/4
- 1992
- 4 effects units
- 2-way sync
- Mac + Windows
The DP/4 was the first effects unit I owned, back when I was chasing the warm analog sound on old Daft Punk records. It is four effects units in one box from 1992, and its sounds have real character: the strange VanderPol Filter, grainy metallic reverbs that turn into great lo-fi reverbs once you cut the highs, and tremolos, phasers and flangers I do not hear anywhere else.
Like most gear from that era, it has a few small buttons and one line of text. I made this DP4 editor so you can see and edit all of it on one screen, in sync with the unit.
Four processors, one window
The DP/4 is four effects units in one box. The editor shows units A, B, C and D together, with the routing between them. Run four separate effects on four sources, or chain the units into one multi-effects path.
Every algorithm, including the hidden ones
The editor loads all 48 DP/4 effects on any unit, including ✨ Ring Modulator and Octave Divider ✨, two effects that no factory preset uses. They are there in every copy, one click away.
Load any algorithm on any unit: reverbs, delays, modulation, pitch, dynamics, EQ, amp and vocoder. Parameter names and ranges come from the DP/4 firmware, so they match the front panel.
- Reverbs (11)
- Gated Reverb
- Hall Reverb
- Large Plate and Small Plate
- Large Room and Small Room
- Non-Linear Reverb 1, 2 and 3
- Reverse Reverb 1 and 2
- Delays (5)
- 3.3 sec DDL (2 units)
- Dual Delay
- EQ-DDL with LFO
- MultiTap Delay
- Tempo Delay
- Modulation (9)
- 8 Voice Chorus
- EQ-Chorus-DDL
- EQ-Panner-DDL
- EQ-Tremolo-DDL
- EQ-Vibrato-DDL
- Flanger and EQ-Flanger-DDL
- Phaser-DDL
- Rotating Speaker
- Pitch (6)
- Fast Pitch Shift
- ✨ Octave Divider (hidden) ✨
- Pitch Shift (2 units)
- Pitch Shift-DDL
- Pitch Shifter
- ✨ Ring Modulator (hidden) ✨
- Amps and filters (9)
- Guitar Amp 1, 2 and 3
- Parametric EQ
- Rumble Filter
- Speaker Cabinet
- Tunable Speaker
- VanderPol Filter
- VCF-Distortion
- Dynamics (6)
- De-esser
- Ducker/Gate
- EQ-Compressor
- Expander and Inverse Expander
- Keyed Expander
- Other (2)
- Sine/Noise Generator
- Vocoder (four bands)
1U, 2U, 4U and Config presets
A 1U preset loads one unit. A 2U preset loads a pair, A+B or C+D. A 4U preset loads all four units. A Config preset sets the sources and the routing: 1, 2, 3 or 4 sources. The editor shows which presets fit the unit and configuration you have.

A real librarian
Browse the ROM bank: 200 factory presets, 50 of each type. Read the RAM bank from your DP/4: 200 user slots. Save the edit buffer, the System settings, or the full RAM bank to your computer. Restore a backup to the DP/4 when you need it.

Also in the DP4 editor
- Live editing
Each change goes out over SysEx and is read back. The standalone app also follows the front panel. - Safe banks
It backs up RAM and System before the first permanent write of each session, in approximately 16 seconds. You can also protect Config 1. - Scenes
Save the whole DP/4 state as a scene file, and open it later to see every unit, algorithm and parameter.
Getting started with the DP4 editor
- Connect the DP/4’s MIDI IN and MIDI OUT to your computer’s MIDI interface.
- In a DAW, route the plug-in’s MIDI output to the DP/4 and the DP/4’s MIDI back to the plug-in.
- Some DAWs do not pass SysEx from plug-ins. If the unit does not respond, use the standalone app.
Screenshots


Recall a stored preset with 2 Unit selected
Pricing
DP4 Editor
- VST3
- AUv3
- AU
- Mac 10.14+
- Windows
One license covers 2 computers
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