The TONECAT BlankSlate Overdrive is an analog overdrive pedal from TONECAT, also listed as a booster. RockBoard's PedalPedia describes it as "a Klon-style overdrive platform for both sonic and visual expression": a circuit in the Klon tradition on the inside, and a plain, unfinished enclosure on the outside that the player can decorate however they like.1
What it does
TONECAT describes the pedal as delivering "warm, dynamic gain" with Klon-inspired character. Klon-style overdrives are a family of circuits modeled on the original Klon Centaur, a pedal known for transparent gain that can also work as a clean boost, and the BlankSlate is listed under both overdrive and booster categories.1
The visual idea is the other half of the design. The maker's description pairs the gain circuit with "a literal blank canvas on the outside" for the player's own artwork, which is where the pedal gets its name.1
Power and setup
The BlankSlate runs on a 9V DC, center negative supply, the standard arrangement for most pedalboard power supplies and daisy chains.1
TONECAT's product page for the BlankSlate Overdrive is at tonecat.life/shop/p/blankslate-overdrive.1
Related pedals
If you are comparing Klon-style drives, TONECAT also makes the TONECAT Klonka-Bar Overdrive. For other takes on the same territory, see overdrive pedals, boost pedals, or how the classic circuits compare in Boss SD-1 vs Ibanez TS9 Tube Screamer.
Videos
TONECAT Official
TONECAT Official
Questions
Is the TONECAT BlankSlate Overdrive analog or digital?
It is an analog pedal. TONECAT lists the circuit type as analog, and the pedal runs on a 9V DC, center negative power supply like most standard overdrive pedals.
What makes the BlankSlate different from other Klon-style pedals?
TONECAT describes it as a Klon-style overdrive platform for both sonic and visual expression: the circuit delivers warm, dynamic gain, while the outside of the enclosure is a literal blank canvas intended for personal artwork.
Sources (1)
- BlankSlate Overdrive by TONECAT, RockBoard PedalPedia, 2026



