Prophet T8

Sequential_Circuits Prophet T8

Released: 1983

MSRP: $5895US

Synopsis:

8 voice updated Prophet5. (specs have not been confirmed) Architecture Class: Conventional (subtractive).

Ebay Description:

The Sequential Circuits Prophet T8 is a (aftertouch and velocity sensitive) 76 key, 8 voice analog synthesizer, featuring programmable dual oscillators, resonant low pass filter (24dB CEM), dual envelopes, glide, and LFO, along with a tape interface and MIDI.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
76 keys (wooden)	?	?	no	mono stereo	MIDI: IN OUT tape	no	no	sequencer start/stop sustain unison-track	AC

Interface

Compatibility	Multitimbral Memory	Program Memory	External Storage	External Programming	UI Input	UI Output
-	N/A	?	tape	MIDI SysEx	button/knobs	LED

Architecture

Multitimbral	Polyphony	Unison	Architecture
no	8	yes	VCO1+VCO2+Noise->VCF->VCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
no	no	VCA-EG	no

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
no	no	?	?	no	Pitch-Wheel Mod-Wheel	no

Keyboard

Key Pressure	Chord Memory	External Control	External Sustain	Key Scaling	Velocity Curves
polyphonic	no	MIDI	MIDI pedal	yes	1

Source

Name	Signal Class	Waveform	Octave Range	Amplitude Modulator	Harmonics Modulator	Pitch Modulator
VCOA	analog	pulse saw	4	no	FM:VCOB PWM:LFO	glide LFO Noise Pitch-Wheel VCOB VCF-EG
VCOB	analog	pulse saw triangle	4	no	PWM:LFO	glide LFO Pitch-Wheel
Noise	analog	noise	-	no	no	no

Filter

Name	Signal Class	IC	Resonant	Shape	Frequency Modulator	Resonance Modulator	Shape Modulator
VCF	analog	CEM3372	yes	24dB low pass	key LFO VCF-EG VCOB	no

Envelope

Name	Level	Rate	Loop	Polarity	Trigger	Level Modulator	Rate Modulator
VCA-EG	sustain	attack decay release	no	no	no	no	no
VCF-EG	sustain	attack decay release	no	no	no	no	no

LFO

Name	Waveform	Delay	Polarity	Sync	Delay Modulator	Level Modulator	Rate Modulator
LFO	saw:up square triangle	no	no		no	Mod-Wheel	no

Conventional Models

Synth Museum

"Synthesizer preservation via research and education."