The Source Code is an analog overdrive pedal from Totally Wycked Audio (TWA), designed by Susumu Tamura, the creator of the legendary Ibanez TS808 Tube Screamer. It is presented as the next step in that format: RockBoard's PedalPedia calls it "the ultimate evolution of the Tube Screamer," with a unique Bite control and refinements in every area compared to the original design1. It is distributed by Godlyke Distribution2.
What it does
The Source Code is an analog, Tube Screamer-style overdrive1. TWA describes the SC-01 as "an exceptional overdrive, designed to enhance harmonic content and translate the subtle nuances" of a player's picking and instrument23. Compared with the TS format it comes from, Guitar Pedal X notes it adds "an additional +6dB on the output," giving it more level on tap than the pedal it descends from4. TWA also says it carries "unique Bite Control and refinements in every area" relative to the Tube Screamer format1.
Where the Tube Screamer format is one of the most copied overdrive circuits in the pedal world, the Source Code's pitch is straightforward: the same basic idea, revisited by the person who designed the original, with a Bite control shaping the edge of the drive and changes throughout the circuit14.
What reviewers said
Reception from published reviewers has been strong. Guitar World's Paul Riario wrote:
"The Source Code, from TWA (Totally Wycked Audio), is one of the finest TS808-style overdrive pedals I've heard"5
Paul Riario, Guitar World5
Reviewers have consistently placed the Source Code in the Tube Screamer lineage designed by Susumu Tamura, the creator of the Ibanez TS808 Tube Screamer1. TWA positions the pedal as "the ultimate evolution of the Tube Screamer," an analog circuit running on 9V DC, center negative1.
In the video, the That Pedal Show pair demonstrate the Source Code's drive tones and its Bite control against amp settings, discussing how it sits in the Tube Screamer lineage and how it responds with different guitars and gain staging6.
Versions and availability
The pedal is presented by TWA as the next step in the Ibanez TS808 Tube Screamer design, with Susumu Tamura, the original TS808's creator, named as its designer1. It is an analog overdrive powered by 9V DC, center negative1.
The Source Code is a current design from a small builder, handmade in the USA2. Availability through the US distributor, Godlyke Distribution, is the route to it in the United States2.
Videos
AndyDemos
R.J. Ronquillo
Premier Guitar and Tom Butwin
Sources (6)
- Source Code Overdrive by Totally Wycked Audio, RockBoard PedalPedia, 2026
- The Tube Screamer has been reinvented by its original creator, Guitar World, 2025-11-14
- TWA BB-01 Better Box clean harmonic booster pedal by Susumu Tamura, Godlyke Distributing, Inc.
- Guitar Pedal X, Guitar Pedal X, 2025-11-06
- TWA Source Code review, Guitar World, 2025-12-17
- Mystery Tube Screamer vs Original Ibanez TS 9 & TS10 Wow, That Pedal Show (YouTube), 2026-07-30
