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Fosi Audio P4 Pre-Amplifier

Fosi Audio P4

Fosi Audio P4 is a compact, solid-state stereo preamplifier featuring three RCA inputs, a motorized volume pot, and tone controls (bass/treble). 

Mini Control Hub

The P4 supports up to 3 RCA inputs, allowing easy connection to CD players, streamers, DACs, cassette decks, and turntables with built-in phono preamp. Switch between sources with a click for seamless audio control.

Practical and User-Friendly

Equipped with volume control, bass and treble adjustment with bypass function, three-level gain control, and a remote. The preamplifier offers convenient audio setup and optimization, making every listening session effortless.

Motorized Potentiometer

Featuring a high-precision motorized analog pot, the P4 delivers smooth volume adjustment, reduced noise, and minimal distortion for a purer and more refined sound experience.

Compact and Solid

 The P4 stereo preamp features a sleek, minimalist design that saves space and provides robust resistance to electromagnetic interference, ensuring reliable performance over time.

Exceptional Performance

 With a low noise floor, high signal-to-noise ratio, and extremely low distortion, the P4 pre-amplifier delivers pristine audio, ensuring accurate sound reproduction and enhancing the listening experience for audiophile

Specifications
  • SNR: ≥ 110dB

  • Dynamic Range: ≥ 110dB

  • THD+N: ≤ 0.003%

  • Crosstalk: ≥ 105dB

  • Noise Floor: ≤ 9μV

  • Tone Adjustment Gain: ±12dB

  • Channel: 2.0

 

  • Frequency Response: 20Hz-20kHz(±0.1dB)

  • Power Supply: DC 12V/1.5A