The Korg Volca Bass is a compact analog bass synthesizer with three VCOs, a resonant low-pass filter, and a 16-step sequencer. Each oscillator can be independently tuned and sequenced across three separate parts, creating thick layered bass lines, unison leads, or three-part sequences from a single battery-powered unit.

Analog Signal Path

Three VCOs with sawtooth and square waveforms feed a 12 dB/oct low-pass filter with cutoff, peak (resonance), and envelope intensity controls. The VCA includes sustain on/off switching, and a single LFO modulates amplitude, pitch, or filter cutoff with triangle or square waveforms. An attack/decay/sustain envelope shapes the filter and amplitude.

Sequencer

A 16-step sequencer records up to three independent parts (one per oscillator), with eight pattern memories. Motion sequencing records knob movements for evolving, automated patterns. Sync In/Out jacks connect to other Volca units, Korg gear, and modular systems for synchronized playback.

Specifications

• Sound Engine: Analog synthesis (3 VCO, 1 VCF, 1 VCA, 1 LFO, 1 EG)
• Sequencer: 16 steps, 3 parts, 8 patterns
• Output: Headphones (1/8" stereo)
• Sync: In/Out (1/8")
• MIDI: In
• Power: 6x AA batteries (approx. 10 hours) or KA-350 AC adapter (sold separately)
• Dimensions: 193 x 115 x 46 mm (7.60 x 4.53 x 1.81 in)
• Weight: 370 g / 0.82 lbs (excluding batteries)

In the Box

• Korg Volca Bass
• 6x AA alkaline batteries