Description | The E-MU 25 was a precursor to E-MU’s Modular systems, featuring about twenty modules behind a single front panel, including 3 VCO's, 2VCF's, 2VCA's and two envelope generators. Unlike the “bulletproof” all-aluminum standards of the Modular systems, the E-MU 25 used cheap slide pots and plastic switches, and even sported a "vacuum cleaner" power switch! Only two units were produced; they were identical on the outside, but had completely different circuitry inside because the circuitry was evolving so quickly. |
Brand | E-mu |
Model | 25 |
Device | Synth |
Type | Desktop/Keys |
Engine Type | Analog |
Engine | VCO |
Voices (max) | 1 |
Oscillators | 3 |
LFO | 2 |
Noise | Y |
Engine Detailed | 3 VCO, Pulse Variable, Square, White Noise |
Filter (VCF) | 2 24dB Slope (4-pole), Resonance |
Envelope (VCA) | 2 ADSR |
Keys | 37 |
Key type | Keys |
Velocity | No |
Aftertouch | No |
Audio | Mono out |
CV-gate | CV/Gate/Trigger I-O |
Produced: | 1971 - 1971 |
Legend: |
Obvious |
Y: Yes, N: No, N/A: Not Applicable |
VCO |
Voltage Controlled Oscillator |
DCO |
Digital Controlled Oscillator |
LFO |
Low Frequency Oscillator |
Sub |
Sub Oscillator |
VCF |
Voltage Controlled Filter |
VCA |
Voltage Controlled Amplifier |
Velocity |
As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. |
Aftertouch |
Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel. |
Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise. |