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6K4 Tube Preamplifier

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

Tube Preamp

Product Parameters:

  • Power Adapter Output: 12V/1.5A
  • Product Adapter Input Voltage Range: AC 110V - 240V
  • SNR ≥ 98dB
  • THD ≤ 0.1%
  • Treble adjustment range: ±6dB
  • Bass adjustment range: ±10dB
  • Input Mode: RCA
  • Frequency Response: 20HZ -20KHZ((±3dB)

  • 2 Channel Power Amp: BT10A, BT20A, TB10A, V1.0G, TDA7498E, ZK-1002, ZK-502T...
  • 2.1 Channel Power Amp: BT30A, BT30D, BL20C, ZK-TB21
  • 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


Tube preamp with BASS and TREBLE control

Satisfies your need for more sound quality! Great Warm Smooth Sounding!


Simple, thoughtful design

Fosi Audio P1 is easy to connect to your power amplifier or active(powered) speakers with no software to install or settings to change.


Adopt 2pcs 6K4 vacuum tubes

Powerful, dynamic, and sweet TUBE SOUND! Applicable vacuum tube model:6J1,6AK5,EF95, 5654,403B, etc.

Box X2 T20 P1 P2 T20 with 5654w tube N2
Type Phono Preamp 2.0 CH Amp Tube Preamp Headphone Amp/Tube Preamp 2.0 CH Amp Headphone Amp
Input RCA+3.5mm AUX Bluetooth + RCA RCA RCA Bluetooth + RCA 3.5MM AUX
Output Powered Speakers Passive Speakers+ Headphone Powered Speakers Powered Speakers+Headphone Passive Speakers+ Headphone 3.5MM AUX
THD ≤ 0.1% ≤ 0.04% ≤0.1% ≤ 0.04% ≤ 0.04% 0.005%
SNR ≥ 98dB ≥ 98dB ≥ 98dB ≥ 98dB ≥ 98dB ≥ 100dB
Terminating Impedance 2-8Ohm 2-8Ohm 16-600 Ohm
Power Adapter 12V/1.5A 24V/4.5A 12V/1.5A 12V/1.5A 24V/4.5A 5V/1A
Work Voltage AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V
MAX Power Output 50 wattx2 50 wattx2

Features & details

Features

  • 🍎 NOTE: This is a preamplifier, not a power amplifier or phono preamp, can''t be used for turntables or passive speakers.
  • RCA input to the computer, CD, phone, iPod and other player and RCA output to the digital amplifiers, active multimedia audio devices for lossless audio(The RCA cables not included).
  • Small compact design, with optimal integrated circuit to get powerful, dynamic and sweet sound. Tubes can be replaced by 6K4,6AK5,EF95, 5654,403B tubes.
  • This pre-amp improves everything detail, transparency, immediacy, richness, tone associated with your music.
  • Built-in Switch impact protection circuit and overheat protection circuit, long life span of this unit. All aluminum alloy shell and come with a 18-month manufacturer''s warranty.

Product information

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

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