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

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

Product ID: 579728530

Details

Item dimensions L x W x H
11 x 16 x 4
Manufacturer
Fosi Audio
Minimum supply voltage
12 Volts (DC)
Mounting type
Surface Mount
Voltage
230 Volts

📶Bluetooth 5.1 aptX LL/HD

🔊54V True Tube Amplification

🎚️Bass & Treble Tone Controls

¥26976

Duties & taxes included

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate Your Sound Game with Vintage Warmth & Modern Wireless Freedom

WARM ANALOG VIBES - Experience rich, full-bodied sound with 54V tube-driven preamplification that elevates every note.
ULTIMATE CONNECTIVITY - Versatile RCA, AUX, and 3.5mm outputs let you build your dream 2.1-channel HiFi setup effortlessly.
SEAMLESS WIRELESS AUDIO - Bluetooth 5.1 with Qualcomm QCC3031 chip ensures crystal-clear, low-latency streaming with aptX HD & LL codecs.
PRECISION TONE SCULPTING - Fine-tune your sound with premium ELNA capacitors and tactile bass & treble controls featuring central detents.
AUDIOPHILE GRADE RELIABILITY - High SNR (103dB) and low crosstalk (95dB) deliver pristine audio clarity backed by a 24-month warranty.

The Fosi Audio P3 is a compact tube preamplifier that combines classic vacuum tube warmth with modern Bluetooth 5.1 connectivity. It supports aptX HD and LL codecs for high-fidelity wireless audio, offers versatile input/output options including RCA and AUX, and features premium audiophile components for precise bass and treble control. Ideal for building a high-quality stereo or headphone setup, it delivers rich, detailed sound with low noise and crosstalk, all backed by a 24-month warranty.

Specifications

ASIN	B0CJBKWF43
Best Sellers Rank	#7,437 in Electronics ( See Top 100 in Electronics ) #1 in Home Audio Preamplifiers
Brand Name	Fosi Audio
Customer Reviews	4.4 4.4 out of 5 stars (544)
Item Dimensions	11 x 16 x 4 centimeters
Item Weight	500 Grams
Manufacturer	Fosi Audio
Minimum Supply Voltage	12 Volts (DC)
Model	P3
Mounting Type	Surface Mount
Number of Channels	2
Number of Items	1
Number of Packs	1
Part Number	P3
Unit Count	1 Count
Voltage	230 Volts

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