303_LINE Prices
How much does a TB-303 cost?
Live asking prices for used units, plus what to look at before you buy.
Live asking prices
Asking prices pulled from Reverb's used-gear marketplace. They change, so check back.
Figures are sellers' asking prices from Reverb listings, not sale prices, offers, or valuations from 303_LINE.
Why originals cost so much
The TB-303 was a commercial failure in the early 1980s. Once acid house made the sound famous, demand grew while the supply of used units stayed small, because the production run was short. That mix of scarcity and cultural importance keeps prices high.
What to check if you buy a used one
- Battery condition. Old units can have a leaked or dead memory battery that damages the circuit board. Ask for photos of the inside.
- Does it run and hold patterns? Ask for a video of the sequencer playing and a filter sweep.
- Keys and contacts. Worn rubber contacts and dirty switches are common on units this age.
- Modifications. Many units have been modified (for example, for MIDI). That can be a plus, but ask what was done and by whom.
- Return policy and seller history. Prefer sellers who accept returns and describe condition honestly.
This is general information, not an appraisal or buying advice.
Cheaper routes: TB-303 clones, the TB-303 vs TD-3 comparison, or the free emulator.