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Welcome to the Bad Cat Mod Shop

It's our sonic skunk works. A space for legendary designers, builders, and artists to experiment with ideas that don’t fit inside the lines. These are the circuits that challenge convention, stretch tone, and chase what’s next. Limited runs. No rules. Just raw creativity with Bad Cat DNA.

The first release comes from Mark Sampson, a pioneer in boutique amp design and part of Bad Cat’s origin story. His take on the Black Cat 30 reworks the Player Series II foundation with a redesigned tone stack, upgraded filtering, and a reimagined power section with two additional output tubes.

Available in Combo or Head Formats

Choose the setup that fits your rig. The Mod Shop Black Cat 30 is offered as a 1x12 combo or a standalone head, each built with the same upgraded power and signature tone. Limited availability.

Measured. Modified. Mastered.

These aren’t random tweaks. They’re intentional revisions, led by legendary designers to bring out the full potential in every circuit.

Mod Shop Edition

The Mod Shop stamp means this isn’t just a Bad Cat, it’s a limited edition, born from collaboration and built to inspire.

Made in the Golden State

Every Mod Shop amp is hand-built in Costa Mesa, California, by a team of expert builders who live and breathe tone.

The Legend Lives On

Mark Sampson

“The Mod Shop allows us to collaborate with legendary builders and share the ‘one-offs’ our team dreams up. After loaning Mark our Black Cat amplifier, he called me excited about the tweaks he’d made. This Black Cat 30 is a tribute to his genius.” - John Thompson, Owner

Mod Shop Editions

Limited. Handcrafted.

Drawing from the world of small-batch spirits, each Mod Shop Black Cat 30 is delivered with a custom label that notes the batch, builder, and serial. Signed off by our builders a long the way.