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​The GMI Public Address Systems 33F6 Amp Demo | NAMM 2025

It wouldn't be NAMM without a few surprises. One we stumbled upon today was the GMI Public Address Systems 33F6 that was designed in collaboration with guitar great Troy Van Leeuwen of Queens of the Stone Age. It uses new, old-source components and gives TVL everything he's loved in old Peavey, Marshall & Fender amps. The 35W, two-channel head has four inputs, a solid-state rectifier preamp with a fully-tube power amp section (6L6). It's also outfitted with a Lar-mar style post phase inverter master volume and defeatable tone stack.