Back in 1997, this rackmount wonder arrived as one of the earliest hardware takes on the legendary TB-303 acid sound, packing genuine analog guts into a 19-inch format that made it a studio staple for electronic producers chasing that squelchy vibe.
At its core sits a single analog VCO offering square and sawtooth waveforms, feeding into an authentic 18dB 2-pole filter with hands-on knobs for cutoff, resonance, env mod, and decay—mirroring the 303's bare-bones layout but adding an external audio input to run drums or loops through that resonant filter. Five smooth rotary pots double as MIDI controllers, while a simple real-time sequencer uses ternary knob positions (full left, center, full right) for step programming, no memories needed since everything dumps via MIDI SysEx. Connectivity shines with MIDI in/out, four CV/gate outputs for driving vintage synths, Roland DIN Sync, and even MTC-to-Sync24 conversion, all powered externally in a sturdy metal case with aluminum knobs that feel premium.
Over the years, players have praised its spot-on 303 emulation and filter magic on external signals, calling it a top emulator alongside the Bass Station, though some note the quirky programming takes getting used to and wish for onboard patch storage.
