2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale
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2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale__below


JAN 5654W Vacuum Tube Phono Preamp/Headphone Amp

Our Story

Fosi Audio was founded with a simple goal: Build products that sound great and make people want to listen to music every day. We design, manufacture, and sell many Hi-Fi audio products on the market. We pursue your perfect music journey. Enjoy Hi-Fi music with Fosi Audio audio products NOW!

  • Fosi Audio Official Website: www.fosiaudio.com
  • Facebook Page: Fosi Audio
  • Technical Support: www.fosiaudioshop.com

Product Parameters:

  • Input Interface: MM turntable input, 3.5mm AUX input, 12V DC input
  • Output Interface: RCA output, 3.5mm headphone output
  • Output: Active(powered) speakers, Amplifier, Headphones
  • Applicable headphone types: 16 Ω - 300 Ω
  • Output Voltage Level: 1kHz and 650mV
  • SNR: ≥ 70dB
  • THD: ≤0.1%
  • Frequency Response: Standard RIAA
  • Product Adapter Input Voltage Range: AC 110V - 240V

  • 2 Channel Power Amp: BT10A, BT20A, TB10A, V1.0G, TDA7498E, ZK-1002, ZK-502T.
  • 2.1 Channel Power Amp: BT30A, BT30D, BL20C, ZK-TB21 ,BL20C
  • DAC: Q4, Q5, DA2120A, DA2120C, HD3, K3, E10
  • Subwoofer Amp: TP-01, TP-02, M02, M03
  • Phono Preamp: Box X2, BOX X1; Tube Preamp: P1
  • Tube Headphone Amplifier: T20, P2
  • Others: 5654 tube, Power Adapter, Brush, Audio Cables, GH5000 Gaming Headset


Treble and Bass Independent Adjustment

Treble and Bass independent gain rotation design, sound quality is under control, adding more playability and fun for music, more ways to play and wait for you to discover.


Independent Headphone Amplifier

A 3.5mm headphone amplifier output interface is compatible with an ordinary 3.5mm headset. It is designed for headphone users, reserves the gain interface for audiophile DIY. This preamp can restore the sound more clearly.


Replaceable JAN 5654W Tube

This preamp uses 5654 vacuum tubes, has a softer listening experience, simulating natural sound, makes audio equipment keep a classic acoustic tone, and achieves beautiful Hi-Fi sound quality. 5654 tubes can be replaced by 6K4/6J1/6J4/6AK5/66*In vacuum tubes, etc. to suit audiophile’s needs.


MM Turntable Preamp

Suitable for moving-magnet (MM) cartridges. Precise RIAA equalization. Consistent sonic performance, super low noise. This mini preamp has stereo RCA inputs and stereo RCA outputs Connect the turntable to the RCA inputs and ground.


All-aluminum alloy body

Exquisite appearance, compact body. The overall structure is natural and simple, and the material is strong and textured for superb visual enjoyment. When placed on the desktop, it is solid and does not take up space.


DC 12V Supply

The power supply has performances such as short-circuit protection and overload protection. And effectively reduce the impact of AC input.

BOX X2 T20 with 5654w P1 P2 BOX X4 BOX X1
Type Phono Preamp 2.0 CH Amp Tube Preamp Headphone Amp/Tube Preamp Phono Preamp/Headphone Amp Phono Preamp
Input MM Turntable+3.5mm AUX Bluetooth + RCA RCA RCA MM Turntable+3.5mm AUX RCA
Output Powered Speakers Passive Speakers+ Headphone Powered Speakers Powered Speakers+Headphone Powered Speakers +Headphone Powered Speakers + Headphone
THD ≤ 0.1% ≤ 0.04% ≤0.1% ≤0.1% ≤0.1% ≤ 0.08%
SNR ≥ 98dB ≥ 98dB ≥ 98dB ≥ 98dB ≥ 70dB ≥ 70dB
Terminating Impedance 2-8Ohm
Power Adapter 12V/1.5A 24V/4.5A 12V/1.5A 12V/1.5A 12V/1.5A 12V/1.5A
Work Voltage AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V
MAX Power Output 50 wattx2 Features 3.5mm Headphone Output and Power Switch Button

Features & details

Features

  • 2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.
  • JAN 5654W Tube MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting 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 a grounding post to protect your turntable.
  • Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.
  • Applicable Vacuum Tube Model: 6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.
  • What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 18-month warranty, and friendly customer service.

Product information

Product Warranty: For warranty information about this product, please click here

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale

2021 discount Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume popular Bass lowest Treble Control Hi-Fi Pre Amp Fosi Audio Box X4 sale