Fosi Audio BOX X4 Phono Preamp Headphone Amplifier/Preamplifier Hi-Fi Pre Amp with JAN 5725W Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control(Disclaimer)

Colour: BOX X4

Offer

Product description

  • Pro-Grade MM Phono Stage with Grounding Terminal: Upgraded from BOX X2, the BOX X4 delivers audiophile-grade clarity for your turntable.
  • Features a low-noise JAN 5725W vacuum tube preamp with MM input and built-in earth terminal to eliminate hum and protect vinyl systems.
  • Ensure your turntable’s internal preamp is disabled for pure analog playback.
  • Dual-Output Flexibility--Preamp + Headphone Amp:Switch seamlessly between RCA line-level output for amplifiers and 3.5mm headphone output for private listening.
  • Engineered to drive most headphones, ideal for late-night vinyl sessions without disturbing others. Tube Rolling Flexibility for Custom Sound:Unlock endless audio personalities!
  • Swap stock JAN 5725W tubes with 6K4/6J1/GE5654/6AK5 tubes (sold separately). A DIY haven for vinyl enthusiasts. Active Bass & Treble Controls for Vinyl Optimization:Fine-tune your records with ±10dB bass/treble
  • EQ – boost warmth for vintage LPs or sharpen detail for modern pressings. Paired with low-noise circuitry to preserve original analog character.
  • Complete Kit with Extended Warranty:Includes BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.

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