I am unable to connect/align the vacuum tubes in the socket of the P3.

Remove the copper rings for easier tube installation.

How to reset P3 Bluetooth？

Resetting the P3's Bluetooth with the RST hole in the back.

P3 power supply compatibility

P3 is compatible with DC 12V/1.5A~3A power supply.

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P3 Tube Preamp Headphone Amplifier Home Audio Preamplifier Mini Vacuum Pre Amp Receiver with Bluetooth aptX LL HD Bass Treble Tone Controls for HiFi Stereo Active Speakers with RCA AUX Jack

P3 Tube Preamp Headphone Amplifier Home Audio Preamplifier Mini Vacuum Pre Amp Receiver with Bluetooth aptX LL HD Bass Treble Tone Controls for HiFi Stereo Active Speakers with RCA AUX Jack

Product ID: 576801869

Details

Brand
Fosi Audio
Color
Black
Item Weight
500 Grams
Output Channel Quantity
2
Power Source
AC

📶Bluetooth 5.1 aptX HD/LL low latency

🔊54V tube voltage for rich sound

🎚️Bass & treble tone controls with detents

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VT34848

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Fosi Audio
Color
Black
Item Weight
500 Grams

Description

🎧 Elevate your audio game with vintage tube warmth and modern wireless freedom!

PRECISION TONE CONTROL - Fine-tune your sound with premium ELNA capacitors and tactile bass & treble controls featuring central detents for perfect EQ.
VERSATILE CONNECTIVITY - Easily switch between RCA, AUX, and headphone outputs supporting 16Ω–300Ω headphones and 2.1-channel setups.
WARM TUBE AMPLIFICATION - Experience authentic, rich analog warmth with a powerful 54V tube preamp circuit that elevates every note.
AUDIOPHILE GRADE CLARITY - High SNR (103dB) and low crosstalk (95dB) deliver pristine stereo separation and immersive soundstage for true HiFi lovers.
SEAMLESS WIRELESS STREAMING - Bluetooth 5.1 with Qualcomm QCC3031 chip ensures crystal-clear, low-latency audio with aptX HD and aptX LL codecs.

The Fosi Audio P3 is a compact tube preamplifier and headphone amplifier combining classic vacuum tube warmth with modern Bluetooth 5.1 aptX HD/LL wireless streaming. It delivers rich, detailed sound with 54V tube voltage, versatile RCA/AUX connectivity, and precise bass/treble tone controls. Designed for audiophiles and music lovers, it supports headphones from 16Ω to 300Ω and offers high signal-to-noise ratio and low crosstalk for a premium HiFi experience.

Specifications

ASIN	B0CJBKWF43
Best Sellers Rank	#36,678 in Electronics ( See Top 100 in Electronics ) #22 in Audio Component Preamplifiers
Brand	Fosi Audio
Color	Black
Customer Reviews	4.3 out of 5 stars 493 Reviews
Item Weight	500 Grams
Manufacturer	Fosi Audio
Mfr Part Number	P3
Model Number	P3
Output Channel Quantity	2
Power Source	AC
Unit Count	1.0 Count
Warranty Description	24 Month Manufacturer

Reviews

J**J

26.02.2026

D**O

5.12.2023

A**R

21.12.2024

W**E

1.02.2026

G**L

14.03.2026

J**N

15.09.2025

E**E

16.01.2025

S**K

2.03.2025

T**R

16.05.2024

A**ー

17.02.2025

N**S

8.07.2024

J**L

5.11.2023

P**E

4.05.2025

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