Feature

●Please note that this is a preamplifier and cannot be utilized for turntables or passive speakers. It is not a power amplifier or phono preamp.
●This preamplifier features RCA inputs that can be connected to various devices such as computers, phones, iPods, and CD players. Additionally, it includes RCA outputs that can be used with digital amplifiers and active multimedia audio devices for lossless audio (Please note: RCA cables are not included).
●This preamplifier boasts a small and compact design and incorporates an optimal integrated circuit to deliver powerful, dynamic, and sweet sound. Furthermore, the tubes in this preamplifier can be replaced with 6K4, 6AK5, EF95, 5654, or 403B tubes.
●Experience a significant improvement in the detail, transparency, immediacy, richness, and tone of your music with this preamp. The preamp includes a 12V power supply, two 6K4 tubes, and user manual for convenient setup and operation.
●This preamp is equipped with a built-in Switch impact protection circuit and overheat protection circuit, ensuring a long lifespan for the unit. It features an all-aluminum alloy shell and includes an 24-month manufacturers warranty for your peace of mind.


Description

Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home TheaterTube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home Theater
Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home TheaterTube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home Theater
Fosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo Preamp 6K4 Valve Vacuum Pre-ampFosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo Preamp 6K4 Valve Vacuum Pre-amp

Tube Preamp

Fosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo PreampFosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo Preamp
Our Story

At Fosi Audio, our mission is simple yet powerful: to create products that produce exceptional sound quality and inspire people to listen to music on a daily basis. With a diverse range of Hi-Fi audio products available, we take pride in designing, manufacturing, and selling premium audio gear that aids your journey towards the perfect music experience. Choose Fosi Audio for an unparalleled Hi-Fi music experience.

6K4 Tube Preamplifier

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, BT20A Pro, TB10A, TB10D, V1.0B, V1.0G, TDA7498E, ZK-1002, ZK-502T.
  • 2.1 Channel Power Amp: BT30A, BT30D, BT30D Pro, BL20A, BL20C, ZK-TB21.
  • DAC: DS1, DS2, Q4, K5 Pro. DAC Amplifier: DA2120A, DA2120C.
  • Subwoofer Amp: TP-01, TP-02, M01-BT, M02, M03, M04.
  • Phono Preamp: BOX X1, Box X2, BOX X3, BOX X4. Tube Preamp: P1.
  • Tube Headphone Amplifier: T20, T20X, P2.

Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home TheaterTube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home Theater

Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home TheaterTube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home Theater

Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home TheaterTube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Vacuum Pre-amp Treble Bass Tone Home Theater

Enhance Your Audio with Tube Preamp featuring Controllable Bass and Treble

Experience a significant improvement in sound quality with this preamp! Enjoy a warm and smooth audio experience with exceptional clarity and depth.

Elegantly Designed Preamp with Intuitive Features for Effortless Use

Connect the Fosi Audio P1 with ease to your power amplifier or active speakers, without the need for any software installation or changes to settings.

Superb Audio Quality with Dual 6K4 Vacuum Tubes

Experience powerful, dynamic, and sweet tube sound with the Fosi Audio P1 preamp! Utilize any of the following vacuum tube models for optimal sound quality: 6J1, 6AK5, EF95, 5654, 403B, and more.

Fosi Audio P3 Tube Preamp Headphone Amplifier Home Audio Preamplifier Phono Preamp Headphone Amplifier Preamplifier Hi-Fi Pre Amp JAN 5654W Vacuum Tubes MM Turntable Fosi Audio P2 Headphone Amplifier Vacuum Tube Headphone Amp Phono Preamp Headphone Amplifier Preamplifier Hi-Fi Pre Amp JAN 5654W Vacuum Tubes MM Turntable Phono Preamp Turntable Preamplifier MM Phonograph Preamplifier Gain Gear Mini Stereo Audio Hi-Fi Bluetooth Tube Amplifier Stereo Receiver 2 Channel Class D Digital Mini Hi-Fi Power Amp Preamp
P3 P1 P2 BOX X2 BOX X4 5654W tube
Customer Reviews
4.3 out of 5 stars
105
4.4 out of 5 stars
669
4.2 out of 5 stars
3
4.6 out of 5 stars
2,453
4.0 out of 5 stars
600
4.3 out of 5 stars
81
Price $79.99 $49.99 $49.99 $69.99 $89.99 ?
Type Headphone Amp +Preamp Preamp Headphone Amp +Preamp Phono Preamp with Vacumm Tubes Phono Preamp with Vacumm Tubes -
MAX Power Output Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. -
Input Bluetooth + RCA RCA AUX + RCA RCA+3.5mm AUX RCA+3.5mm AUX -
Output RCA + 3.5mm Headphone + AUX RCA 3.5 mm + 6.35 mm Active Speakers RCA+3.5mm AUX -
Treble & Bass Control ? ? x x ? -
THD ≤ 0.02% ≤0.03% ≤0.03% ≤ 0.1% ≤0.1% -
SNR ≥103dB ≥ 95db ≥ 95db ≥ 98dB ≥70dB -
Terminating Impedance - - - - - -
Power Adapter 12V/1.5A 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 -
Bluetooth Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp Home Speakers Bluetooth Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp Home Speakers Bluetooth Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp Home Speakers Bluetooth Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp Home Speakers Fosi Audio TB10D 600W TPA3255 Power Amplifier Home Audio HiFi Stereo Class D Fosi Audio SK01 Headphone Amplifier Equalizer Preamp with Bass
BT10A BT20A BL20C BT30D TB10D SK01
Customer Reviews
4.5 out of 5 stars
3,411
4.5 out of 5 stars
8,049
4.5 out of 5 stars
785
4.5 out of 5 stars
2,462
4.5 out of 5 stars
858
4.6 out of 5 stars
68
Price $49.99 $79.99 $89.99 $89.99 $79.99 $79.99
Type Bluetooth 2.0 CH Amp Bluetooth 2.0 CH Amp Bluetooth 2.1 CH Amp Bluetooth 2.1 CH Amp 2.0 CH Amp Headphone Amplifier/Preamp
MAX Power Output 50W x 2 100W x 2 160W x 2 50W x 2+100W 300W x 2 2400mW@32Ω(High Gain); 300mW@32Ω(Low Gain)
Input Bluetooth + 3.5mm AUX Bluetooth + RCA Bluetooth + RCA + U-disk Bluetooth + RCA RCA 3.5mm line in
Output Passive Speakers Passive Speakers Passive Speakers + Active Subwoofer Passive Speakers+Active/Passive Subwoofer Passive Speakers 3.5mm line out, 3.5mm/6.35mm headphone jack
Treble & Bass Control ? ? ? ? ? ?
THD ≤ 0.04% ≤ 0.04% ≤ 0.05% ≤ 0.04% ≤ 0.3% <0.001%
SNR ≥ 98dB ≥ 98dB ≥ 98dB ≥ 98dB ≥ 90dB ≥108dB
Terminating Impedance 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 16-300 Ohm
Power Adapter 19V/4.74A 24V/4.5A 24V/4.5A 24V/4.5A 32V/5A -
Work Voltage AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V USB-C/DC5V

From the brand

Product guides and documents

Whats in the box

  • Preamplifier