Synth Museum

"Synthesizer preservation via research and education."


The Web SynthArk

Proteus MPS Plus

Emu Proteus MPS Plus

Proteus MPS Plus

Released: 1991

MSRP: $1695US

Synopsis:

Adds orchestral samples (model 9035) Architecture Class: Rompler.

Ebay Description:

The Emu Proteus MPS Plus is a 31 key, 32 voice multitimbral, velocity and pressure sensitive, Pop/Rock/Orchestra sample based synthesizer (8MB 16 bit sample ROM), featuring tone control, dual LFOs, dedicated dual amp and auxiliary AHDSR envelopes, chorus, dual stereo submix effects loops, master controller features, dual effects processors, and MIDI, along with 128 preset and 64 user program memories.

Physical

Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
61 keys ? ? 2x submix stereo (TRS, effects loops) stereo mix 2x submix stereo (TRS) MIDI: IN OUT THRU no no no AC

Interface

Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
- no preset:100 user:200 card MIDI SysEx MIDI SysEx menu based LCD screen

Architecture

Multitimbral Polyphony Unison Architecture
16 via MIDI 4 patch split/layer 32 no [Sample1->DCF->DCA]+[Sample2->DCF->DCA]

Output

Effects Pan Modulator Volume Modulator Headphone
Chorus reverb, delay, flange, phaser (primary and secondary sample processing), ring modulation key velocity pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity shared

Control

Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A No N/A N/A MIDI-Bend 4 MIDI CCs 3 MIDI switches Pitch-Wheel Mod-Wheel MIDI-CC1 MIDI-Bend MIDI

Keyboard

Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
poly mono (channel) no MIDI (monophonic mode) MIDI programmable center pitch:6 tables 4

Sample

Stereo Sample Depth Sample Rate Sample RAM Sample ROM Sample Points Sample Trigger Sample Loop Sample Edit
no 16 bit 39kHz no 8MB N/A N/A N/A start reverse

Source

Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
Primary digital 203 - cross-fade: pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity sample-start: velocity pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity MIDI-Switch(3)
Secondary digital 203 - cross-fade: pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity sample-start: velocity pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity MIDI-Switch(3)

Filter

Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
Tone digital ? no low pass key velocity no no

Envelope

Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
DCA1-EG sustain attack hold decay release no no pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity alternate:MIDI-Switch(3) pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity alternate:MIDI-Switch(3)
DCA2-EG sustain attack hold decay release no no pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity alternate:MIDI-Switch(3) pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity alternate:MIDI-Switch(3)
Aux-EG sustain attack hold decay release no no pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity alternate:MIDI-Switch(3) pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity alternate:MIDI-Switch(3)

LFO

Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO1 saw sine square random triangle yes yes no no pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity variation
LFO2 saw sine square random triangle yes yes no no pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity pressure Aux-EG key LFO1 LFO2 MIDI-CC:4 MIDI-Bend velocity variation
Rompler Models
Proteus1 Proteus1 XR Proteus1 Plus Proteus2 Proteus2 XR Proformance Proformance Plus Proteus MPS
Proteus MPS Plus Proteus3 Proteus3 XR Procussion Morpheus Vintage Keys Vintage Keys Plus Ultra Proteus
Proteus FX Classic Keys