Fully functional, in excellent near mint shape with minor signs of wear. Very rare to find such a clean looking Arp 2600 Black/Orange with keyboard. The front panel graphics look extremely clean, you aren't likely to find one looking this good. Sounds excellent as only a vintage ARP 2600 can, a classic and inspiring sound creation tool and a blast to play with.
Polyphony - Monophonic
Oscillators - 3 VCOs: VCO 1 saw / sqr; VCO 2 saw / sqr / tri / pulse / sine; VCO 3 saw / sqr / pulse (Model 4011 VCO on early 2600s, replaced by Model 4017 VCO, replaced by Model 4027 & 4027-1); White Noise Gen: Continually variable from LF to pink to white (Model 4016 Noise Gen replaced by Model 4022).
LFO - Patchable with tons of modulation sources and shapes; Model 4015 Sample and Hold.
Filter - 24db lowpass, self-oscillating; Digital Ring Modulator: AC or DC coupled. Model 4012 VCF (1970-76). Model 4072 VCF (1976-81).
VCA - Env 1: ADSR
Env 2: AR; Linear or Exponential control; Envelope Follower
Model 4010 VCA on early 2600s, replaced by Model 4019 VCA.
Effects - Spring Reverb
Keyboard - Remote Keyboard with 49 keys (Models: 3601, 3604, 3620)
Arpeg/Seq - YES via ARP Model 1601 Sequencer
Control - CV/GATE
Date Produced - 1971 - 1980