2600 Semi-Modular Analog Synthesizer

Back in the 1970s, the ARP 2600 became a studio legend for its raw analog power and patchable flexibility, shaping sounds on everything from prog rock to sci-fi scores—now faithfully recreated at a fraction of the vintage cost.

This semi-modular beast packs three voltage-controlled oscillators with saw, triangle, pulse, and sine waves plus PWM and FM capabilities, a resonant multimode filter, dual LFOs, two envelopes with adjustable timing switches for snappier or stretched responses, and extras like a ring modulator, sample & hold, noise generator, and envelope follower. Faders instead of knobs give it a unique tactile workflow across 78 controls and 93 patch points, all in a compact 19" x 14" x 4.3" desktop or 8U rackmount chassis with colored LEDs for easy navigation. MIDI In/Thru via DIN and USB handles note velocity and basic duophonic mode, while audio I/O, headphone out, and a mixable digital spring reverb add practical polish—keeping the signal fully analog when dialed back.

Owners love its monstrous bass, ripping leads, and endless weird electronic glitches that rival pricier Eurorack setups, praising the smooth VCA upgrades over the original and reliable tuning. The steep learning curve rewards patience, though some note the digital reverb as a minor compromise and quirky duo-mode patching. It's a sound design dream that slots perfectly into any rig without dominating space.