Fi 2A3

About the Fi 2A3

The Don Garber Fi 2A3 is a highly regarded single-ended triode (SET) stereo amplifier known for its purity and simplicity. It uses a direct-coupled design with no coupling capacitors in the signal path, employing a 6SF5 single triode driver stage directly coupled to a 2A3 output tube. The amplifier features a MagneQuest DS025 output transformer and a 5Y3 rectifier tube. Each channel has its own filament transformer and dedicated power supply filter network, ensuring low noise and high fidelity. The Fi 2A3 delivers approximately 3 watts per channel and is optimized for use with high-efficiency speakers. It is praised for its open, relaxed, dynamic, and detailed sound with punchy, deep bass down to 20Hz, natural acoustic reproduction, and excellent tonal accuracy, especially with acoustic instruments. The amplifier is also noted for its ability to reveal subtle musical details and its non-fatiguing treble. The original price was around , and it was sold with a two-week money-back guarantee. Don Garber continuously refined the design, focusing on simplicity and sound quality, making it a milestone product in the audiophile community. The Fi 2A3 is considered a classic and collectible amplifier, embodying Don Garber's philosophy of delivering the best possible sound with minimal components and reasonable cost.