Fosi Audio Box x2 phono preamp
(2021-Present)

The Fosi Audio X2 is a versatile tube MM phono preamplifier designed to deliver clear, high-quality analog sound. It effectively removes low-frequency noise and converts phono signals to line-level using high-grade components and low-noise integrated circuits. A grounding post helps protect your turntable and ensures signal purity. With three switchable gain modes—39, 42, and 45 dB—you can tailor the output to your setup, offering impressive compatibility and control. Beyond its phono capabilities, the X2 also functions as a tube preamp with a 3.5mm AUX input, producing a warm, smooth tone that adds character to your system.

The pedal pimp mod for the x2 involves upgrading the tubes, the capacitors, and the op-amps. I also use very High end RCA cables c/o wbc and damping feet Replacements c/o hudson hi-fi.