: Prophet 5 : Sequential Circuits : 1978 -> : DPRO5(Dave L.) : The first fully programmable synth turned the synth world on it's ear when first seen at the 1978 NAMM show in Annaheim Ca. Early Revs 1 and 2 used SSM chips and were quite unstable, though some said this made for a fatter sound. Rev 3. up used Curtis chips and 3.2 up could be MIDIed at the factory. : Polyphonic : 5 : Keyboard : 5 Octaves C-C : Poly, Unison : No : Programmable : All Rev's upto and including 3.2 have 40 programs Rev 3.3 upgraded to 120 programs : No : 2 VCO'S/voice. Oscillator A provides Sawtooth and Square. Oscillator B provides Sawtooth, Triangle and Square. Oscillator A can be sync'd to Oscillator B. Control over Oscillator frequency, pulse width, Oscillator B detune. Osc B can also be switched to low frequency to provide another LFO. : VCO's = CEM3340's, VCF's = CEM3340's, EG's = CEM3310's VCA's = CEM3280's. : Yes : 24db low pass filter. Adjustable cut-off frequency and resonance. : LFO provides Triangle, Sawtooth and square waves. Control over frequency and depth. : Wheel Modulation: Source modulation can be varied between the Wheel LFO and noise - destinations are OSC A frequency and Pulse width, and OSC B frequency and Pulse width. Poly-Mod source modulation amount variable between the Filter EG and OSC B : Filter EG - ADSR, Amplifier EG - ADSR : No Z : Yes - white : Yes - but it's monophonic : No : No : Poly Mod section : Foot pedals : Filter CV, CV and Gate, foot pedals, cassette i/face : Cassette interface, audio : Optional Remote Prophet interface : Yes - Rev 3.2 and up only : Yes - Kenton and Groove ( Groove no longer exist ) : One patch at a time with factory MIDI : Unknown : ? : Modulation only - factory MIDI : Not many in my opinion - slight Oscillator drift : Prophet 10, Pro 1, T8, P600 ( had different filters and software generated envelopes ). : Fat - good for Moog type basses as well as weird modulated sounds. If you turn the keyboard off on Osc B and switch it to low frequency - you get five LFO's via the Poly Mod section ( very scary ). : Occassional note-off bug in MIDIed version, some say the Curtis chip models sound harsh.

: IMHO this is a great synth - I've owned and used one for years. Thats it, Peace - Dave DPRO5(Synth Junkie) : 9