Coffman Labs G1-A

The Coffman Labs G1-A is a limited production amplifier that has taken three years to come to fruition, indeed it is the only product in the company’s arsenal. Featuring rare and custom parts the G1-A been designed in Portland, Oregon as something that will last for decades with proper care. It is a line stage, phono preamplifier and a headphone amplifier.

In part the G1-A  has been inspired by an RCA amplifier around a century old. As with the RCA amplifier the G1-A is said to contain  “nothing that could degrade easily over time”.  All internal wiring is point-to-point and is hand done, though apart from the input and output wire runs are non-existent due to the 3D topology of the layout.  All of the components are claimed to be “over-sized for voltage” and all switches are “military aircraft quality and rated for millions of operations.”

The Coffman Labs preamplifier is available in 120 or 24 volt versions, has a separate power supply and has a tube compliment of 2 x 12AX7 for RIAA, 2 x 12AU7 for phono boost, 2 x 5687 in the line output and a single 5ARE.

The Coffman Labs G1-A is being sold in the US exclusively through Echo Audio from June 2012 at a cost of 5500$

Next / Previous

Latest posts

Sivga Lyrebird At CanJam London 2026 Sivga Lyrebird At CanJam London 2026 July 15, 2026 Ruark R410 Anniversary Edition Celebrates 40 Years hifi news Ruark R410 Anniversary Edition Celebrates 40 Years July 15, 2026 ZMF Aegis Headphone Amplifier July 15, 2026 Marantz Model 70 Amplifier And Marantz CD 70 hifi news Marantz Model 70 Amplifier And Marantz CD 70 July 15, 2026