Peavey DPM4

Multi Memory: Same as patch memory
Patch Memory: Each patch can contain up to four sounds RAM:100
PCM Memory: 10MB
Sample Memory: 512kB (256kW), can be upgraded to 1MB max
Sequencer Memory: 10 songs, 50 sequences, 20k event

Peavey DPM4 Synopsis

DPM3 SE with more PCM samples and double polyphony when in single oscillator mode

Architecture is typical sample based subtractive (i.e. PCM->DCF->DCA).

Aftertouch: Routed to matrix (pitch, filter cut-off, pan)
Architecture Class: subtractive rompler
Audio IO: stereo outputs headphones
Audio Source: 16 bit samples 186 samples and 10 drum kits (68 drum samples)
Communication Interface: MIDI In/Out/Thru
Effects: 24 bit dual effects processor Dual stereo effects processors (4 simultaneous effects) have 39 algorithms
EG: 4 stages:5 Four loopable 5 stage (5 level, 5 rate) EGs routed to matrix (pitch, osc amp, filter cut-off, volume, pan). Fourth EG dedicated to amplifier
Expansion: 3.5" DSDD floppy drive (patches, sequences, samples). Samples also loaded via MIDI SDS. Memory card adds 200 ROM or RAM (32k Cache card) patches.
Filter: resonant low pass
Form Factor: 61 keys
Key Scaling: Routed to EG rates and levels, pitch, filter cut-off, pan Also routed to matrix (pitch, osc amp, filter cut-off, volume, pan, EG rates/levels)
LFO: Routed to pitch, filter cut-off (with polarity, attack, and delay), pan. Waveforms are triangle, up|down saw, square, random 2 Also routed to matrix (pitch, osc amp, filter cut-off, volume, pan)
Memory:

Multitimbral: 16
Pedal Inputs: programable dual switch, single switch, CV
Performance Control: pitch and mod wheels
Polyphony: 32
Power: AC (IEC C13 to NEMA 5-15P)
Released: 1993
Sequencer: 9 track real or step time, each track can be looped
Signal Class: digital
Velocity: Routed to EG rates and levels Also routed to matrix (pitch, osc amp, filter cut-off, volume, pan, EG rates/levels)