04/03/2026
🎵 The harp amp that Chicago forgot to tell you about.
There's a reason the blues harmonica players of the 1950s sounded the way they did. It wasn't just talent. It was the gear — small, overdriven tube amps pushed past their limits, producing that thick, compressed, almost vocal tone that defined the sound of Chess Records, Maxwell Street, and a thousand smoky clubs on the South Side.
That's exactly what we set out to recreate.
Our Masco MAP-15 inspired harp amp is built from the ground up for harmonica players who want that sound — not an approximation of it.
What's inside:
— Original 1960s Rola 12" alnico speaker, untouched original cone
— RCA NOS 6SL7 preamp tubes
— Tube rectification
— Carbon composite resistors
— Anti-feedback control
— Point-to-point hand-wired construction
— Belton socket
Plug in a bullet mic, turn it up, and you're back in 1955.
Available in limited runs. DM us for details.