I built this amplifier in 2024 based on a design by Petter Blix, and it quickly became a favorite in my recording studio. It gets surprisingly loud while remaining clean until it’s turned up past halfway.
Crafting a “Living Room” Aesthetic
My main goal was to make this a true “living room” amp—something handsome enough to sit out in the open without drawing the ire of a decor-conscious spouse. The enclosure is built from figured maple, resting on a stand crafted from cherry wood harvested from a felled tree in our backyard. The stand design is inspired by James Krenov, and I had a lot of fun using a spokeshave to shape the legs by hand.
The speaker cabinet features knotty cedar doors hung with custom brass pin hinges I made from brass stock. Hidden neodymium magnets hold the doors securely open or closed, allowing them to fold completely out of the way when playing. The figured maple grille is removable via a slot in the bottom of the cabinet for optimal clarity when tracking in the studio.
Speaker & Circuit Details
Inside, the cabinet houses a single 10″ speaker—one of several wonderful handmade speakers I bought from Ted Weber almost 30 years ago. It sounds remarkably clear without getting harsh, breaking up beautifully while maintaining note articulation.
The circuit runs on an old Telefunken 12AX7 preamp tube and an RCA 1644/12L6GT output tube. My only future plan is to modify the design with a more versatile tone stack—as it stands, the single tone control generally stays cranked all the way up, essentially bypassed. I’ll post some audio clips as soon as I get a chance so you can hear it in action!




































































































































































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