Preamplifier
Fosi Audio preamps control multi-source inputs and condition signals before amplification. They feature tone dials, vacuum tubes, and clean circuitry to shape and refine your overall home stereo sound.
All Fosi Audio Preamplifier (5)
Fosi Audio GR40 Tube Preamplifier
Fosi Audio GR40 Tube Preamplifier with DAC, Stereo Headphone Amplifier 3.5mm Home Audio for Active Speakers/Headphones, Digital to Analog Audio Converter Preamp with Bluetooth and USB/Opt/Coax.
Fosi Audio ZP3
The Fosi Audio ZP3 is a compact, fully balanced analog preamplifier that serves as a versatile control hub for desktop and home Hi-Fi systems.
Fosi Audio P3 Tube Preamplifier
Fosi Audio P3 Tube Preamp Headphone Amplifier Home Audio Preamplifier Mini Vacuum Pre Amp Receiver with Bluetooth aptX LL HD Bass Treble Tone Controls for HiFi Stereo Active Speakers with RCA AUX Jack.
Fosi Audio P4 Mini Preamplifier
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable Gain 3/6/9 dB, Bass and Treble Control.
Fosi Audio GR70 Tube Headphone Amp
The Fosi Audio GR70 is a two-in-one headphone amp and preamp. Easily integrate this tube preamp into your home audio system with its multiple headphone jacks and RCA input/output options.