Peavey DPM4
Released: 1993
MSRP: $2299US
Synopsis:
Upgraded DPM3 SE with more PCM samples, single/dual oscillator mode, and double polyphony when in single oscillator mode. Architecture Class: Rompler.
Ebay Description:
The Peavey DPM4 is a 61 key, 16 voice multitimbral (32 voice polyphony), velocity and pressure sensitive, sample based synthesizer (10MB sample ROM), featuring a resonant low pass digital filter, dual LFOs, four 5-stage (5 level, 4 rate) envelopes, extensive modulation capabilities, 100 program memories, 24 bit dual stereo effects processors, 9 track real or step time sequencer, 3.5" DSDD (DOS) floppy drive, program card interface, and MIDI, along with the ability to load samples via MIDI SDS.
Physical
| Form Factor | Dimensions | Weight | Audio Input | Audio Output | Communication Port | Control Input | Control Output | Switch Input | Power |
|---|---|---|---|---|---|---|---|---|---|
| 61 keys | ? | ? | no | stereo | MIDI: In Out Thru | MIDI pedal | MIDI | dual:TRS single | AC |
Interface
| Compatibility | Multitimbral Memory | Program Memory | External Storage | External Programming | UI Input | UI Output |
|---|---|---|---|---|---|---|
| SX SXII DPM3 DPM3SE DPM3SE+ V3 DPM4 DPM488 | multi:4 combi:program-memory | user:100 card:100 | 3.5" DSDD (DOS) floppy drive card:program-memory MIDI SDS | MIDI SysEx | menu based | LCD display |
Architecture
| Multitimbral | Polyphony | Unison | Architecture |
|---|---|---|---|
| combi:4 multi:16 | single-osc:32 dual-osc:16 | no | Osc1->DCA1->DCF1->DCA3 [Osc1->DCA1->DCF1+Osc2->DCA2->DCF2]->DCA3 |
Output
| Effects | Pan Modulator | Volume Modulator | Headphone |
|---|---|---|---|
| 24 bit dual stereo effects processors (4 simultaneous effects) have 39 algorithms | aftertouch Env1-4 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC | Amp-Env pedal MIDI-CC7 | yes |
Control
| Arpeggiator | Arpeggiator External | Sequencer | Sequencer Memory | Sequencer External | Continuous | Program Change |
|---|---|---|---|---|---|---|
| no | N/A | 9 track (supporting loops) real or step time | songs:10 sequences:50 events:40k notes:20k | pedal MIDI | Bend-Wheel Mod-Wheel MIDI-Bend MIDI-CC1 MIDI-CC4 MIDI-CC7 pedal | pedal MIDI |
Keyboard
| Key Pressure | Chord Memory | External Control | External Sustain | Key Scaling | Velocity Curves |
|---|---|---|---|---|---|
| channel | no | MIDI | pedal MIDI | preset:3 user:2 filter:center/depth/polarity | 3 |
Sample
| Stereo | Sample Depth | Sample Rate | Sample RAM | Sample ROM | Sample Points | Sample Trigger | Sample Loop | Sample Edit |
|---|---|---|---|---|---|---|---|---|
| no | 16 bit | N/A | 512kB max:1MB | 10MB | memory limited | N/A | yes | start/end trim |
Source
| Name | Signal Class | Waveform | Octave Range | Amplitude Modulator | Harmonics Modulator | Pitch Modulator | Wave Assign Modulator |
|---|---|---|---|---|---|---|---|
| Sample | digital | 186 + 68 drum samples | +-4 | aftertouch Env1-4 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC | no | aftertouch Env1-3 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC Bend-Wheel MIDI-Bend | no |
Filter
| Name | Signal Class | IC | Resonant | Shape | Frequency Modulator | Resonance Modulator | Shape Modulator |
|---|---|---|---|---|---|---|---|
| DCF | digital | software | yes | low pass (linear or exponential) | aftertouch Env1-4 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC | no | no |
Envelope
| Name | Level | Rate | Loop | Polarity | Trigger | Level Modulator | Rate Modulator |
|---|---|---|---|---|---|---|---|
| Env1 | 5 | 4 | yes | no | no | key velocity | key velocity |
| Env2 | 5 | 4 | yes | no | no | key velocity | key velocity |
| Env3 | 5 | 4 | yes | no | no | key velocity | key velocity |
| Env4 | 5 | 4 | yes | no | no | key velocity | key velocity |
LFO
| Name | Waveform | Delay | Polarity | Sync | Delay Modulator | Level Modulator | Rate Modulator |
|---|---|---|---|---|---|---|---|
| LFO1 | random saw:up|down square triangle | no | delay attack aftertouch Env1-3 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC | aftertouch Env1-4 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC | |||
| LFO2 | random saw:up|down square triangle | no | delay attack aftertouch Env1-3 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC | aftertouch Env1-4 key LFO1-2 velocity MIDI-CC1 Mod-Wheel pedal MIDI-CC |
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