Fosi Audio Bluetooth Phono Preamp for Turntable Phonograph Preamplifier With 5654W Vacuum Tube Amplifier HiFi BOX X3

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SKU: 1005002007318877 Category:

Product Description

  • Brand Name: Fosi Audio
  • Origin: CN(Origin)
  • Maximum Power Per Channel: NO POWER
  • Package: Yes
  • Certification: CE
  • Model Number: BOX X3
  • Channels: 2 (2.0)
  • Input: RCA+3.5mm AUX
  • Output: Powered Speakers
  • Power Adapter: 12V/1.5A with UL PSE Level 6 energy efficiency
  • Type: 5654W Tube Preamp Amplifier

Fosi Audio Bluetooth Phono Preamp for Turntable Phonograph Preamplifier Amplificador Mini Stereo Audio HiFi Tube Amplifier Box X3

Notice:BOX X3 is only a preamplifier, not amplifier, can not be connected with passive speakers directly, If you need connect BOX X3 with passive speakers, you need to connect it with an amplifier then connect the amplifier with your passive speakers.


  • Tube MM Phono Preamplifier: Converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.

  • Designed with grounding post to protect your turntable.Tube Preamplifier: It's also a tube preamp with 3.5mm AUX Input.

  • Designed and assembled by Fosi Audio from high-quality components. Great warm, smooth-sounding.

  • Applicable vacuum tube model: 6K4/6J1/6J1P/6J2/6J3/6J4/6J5/6AK5/6K4/6ZH1P/4.3a/4.3B/EF95 etc *In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tube with different sound.

  • Come with high quality 12V 1.5A power supply, with American UL certification, Japan PSE certification, Level 6 energy efficiency certification.


  • Model: BOX X3

  • Power Adapter Output: 12V/1.5A

  • Product Adapter Input Voltage Range: AC 100V – 240V

  • Output Voltage Level: 650 Mv @3mV 1kHz

  • SNR ≥ 70dB

  • THD ≤ 0.1%

  • Frequency Response: Standard RIAA

  • Product Weight: 0.71 lb/320g

  • Input Mode: RCA+3.5mm AUX+ Bluetooth

Package Include:

*Box X3 Phono Preamp x1

*5654W Vacuum Tubes x2

*12V 1.5A Power Adaptor x1

*User Manual x1

Additional information