The TB-303 Bass Line is a bass synthesizer with built-in sequencer manufactured by the Roland Corporation from 1982 to 1984 that had a defining role in the development of contemporary electronic dance music.

The TB-303 (short for "Transistor Bass") was originally marketed to guitarists for bass accompaniment while practicing alone. Production lasted approximately 18 months, resulting in only 10,000 units. It was not until the mid- to late-1980s that DJs and electronic musicians in Chicago found a use for the machine in the context of the newly developing house music genre.

The TB-303 has become one of the most sought after vintage synths ever! It has helped develop and stylize many forms of electronic music including House, Acid, Trance and Ambient. If ever there was a need for a repetitive bassline/groove or an extremely resonant and bubbly sound, the 303 is KING. Truly a unique machine with a very identifiable sound! It has spun off several imitators as well: Novation Bass Station, ReBirth, Doepfer MS-404, MAM MB-33, Syntecno TeeBee, and more (see Related & Alternative Gear sidebar).

Ironically, these days it's become trendy to dislike the 303 again, now because of over-use. But I don't and you shouldn't either because it is one-of-a-kind and it's just got that sound that everyone loves! Fatboy Slim says it best in his song "Everybody Needs A 303!"

Getting creative with the 303 always leads to great sounds! Add a guitar distortion pedal for instant hard-core acid and techno. Use the CV and Gate outputs to control other old synthesizers and get that elastic 303 groove workin' your other synths (especially cool with a polyphonic synth). It is used by: Aphex Twin, 808 State, Future Sound of London, Massive Attack, Orbital, Eat Static, Norman Cook (Fatboy Slim), Air, Astral Projection, Josh Wink, Plastikman, Überzone, Moby, Hardfloor, Ultramarine, Underworld, BT, The Prodigy, Jimmy Edgar, Union Jack, Front Line Assembly, Pet Shop Boys, Freddy Fresh, Luke Vibert, and the Chemical Brothers.

Polyphony - Monophonic
Oscillators - 1 VCO : Sawtooth or Square waveforms. Tuning control pot.
Filter - 18dB/oct lowpass resonant filter with controls for cutoff, resonance, and envelope amount
VCA - Control pots for Decay time and Accent intensity
Sequencer - Patterns: 64; Songs: 7
Effects - None
Keyboard - none
Control - CV / GATE / DIN Sync
Date Produced - 1982 - 84

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