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

Quad Platina CDT CD Transport hifi news Quad Platina CDT CD Transport March 20, 2026 Cadence Distribution Appointed UK Distributor For Revox Cadence Distribution Appointed UK Distributor For Revox March 19, 2026 Écoute TH1 Bluetooth Headphones Launch In The UK hifi news Écoute TH1 Bluetooth Headphones Launch In The UK March 19, 2026 KOG AUDIO AT AUDIO SHOW DELUXE 2026 hifi news Kog Audio At Audio Show Deluxe 2026 March 19, 2026