The Fi X3 300B is a rare, hand-built stereo SET (single-ended triode) amplifier by the late Don Garber, offering around 8 watts per channel of pure, direct-coupled 300B tube power. Housed in Garber’s largest “Super X” chassis, this beautifully minimalist amp features Magnequest transformers and a premium tube complement including Gold Lion PX300Bs, a vintage Mullard GZ34, and Sylvania 6SN7s. It’s a musical, emotionally engaging piece of hi-fi history—highly sought after for its craftsmanship and unmistakably rich, holographic sound.
