Essential B1 Analog Bass Synthesizer

Imagine capturing that iconic Roland TB-303 squelch without breaking the bank—this analog bass synth nails the essence of acid house classics in a super compact desktop package.

At its heart, it's a monophonic subtractive analog engine with a single VCO offering sawtooth and square waveforms, feeding into a low-pass filter with cutoff, resonance, and envelope depth controls for those signature chirpy sweeps. A simple decay knob shapes the envelope, while accent adds punch to sequencer steps; tweak saturation for gritty drive and tone, or dial in delay with level, time, and feedback for added space. Hands-on controls include dedicated knobs for everything from pitch transpose to effects, plus a 26-note silicone pad keyboard for live play or step sequencing up to 128 patterns with arpeggiator modes. Connectivity shines with 1/4-inch main out, 3.5mm headphone and aux in, full-size MIDI in/out, USB-C, and sync ports—all in a lightweight 325 x 120 x 56mm body weighing just 0.62kg.

Since its 2022 release, it's earned praise as an affordable 303-inspired entry point, with users loving the convincing bass tones, easy sequencer, and build quality that punches above its price—though some note the small knobs limit smooth sweeps and the filter can feel steppy or harsh at high resonance. Perfect for beginners or pros wanting quick acid lines without menu-diving complexity.