TWA announces Source Code overdrive designed by Susumu Tamura

September 18, 2026 · 4 sources

Totally Wycked Audio has announced the Source Code, a soft-clip overdrive designed by Susumu Tamura, the creator of the Ibanez TS808 Tube Screamer¹². Delicious Audio reported the unveiling on September 18, 2026¹; Guitar Pedal X published its coverage on November 6, 2025³.

The Source Code is a TS808-style circuit with four controls: Drive, Level, Bite and Tone⁴³. Guitar Pedal X describes Bite as moving the clipping from symmetrical to asymmetrical³, while Guitar World describes it as a pre-gain input attenuator that adjusts the amount of even-order harmonics in the output⁴. The pedal runs at 18V from a standard 9V center-negative supply through an internal charge pump⁴³, and the Level control includes a +6 dB boost placed after the gain and tone sections⁴. Guitar World reports a "Magic IC" op-amp developed after Tamura analyzed a friend's vintage Tube Screamer with a Malaysian-made TI RC4558P op-amp, a multi-transistor input buffer, top-mounted input and output jacks, and mechanical true bypass⁴. Delicious Audio reports it is handmade in the USA¹.

Guitar Pedal X reports the price as $299 from the Totally Wycked Audio webstore³. Guitar World's review calls it "one of the finest TS808-style overdrive pedals I've heard" and also notes that "It's an expensive pedal in a world of TS clones"⁴.