True Tube Amplification: The preamp circuit elevates the voltage to 54V, ensuring the tubes work to their full potential, delivering a warm and rich experience. The unique preamplification technology delivers pure audio signals, faithfully reproducing crisp high tones, full midrange richness, and deep, rhythmic bass.
Bluetooth 5.1: Equipped with the Qualcomm QCC3031 chip, the P3 preamp guarantees impressive wireless sound quality and low latency, with compatibility for aptX HD and aptX LL codecs formats. Furthermore, the inclusion of a manual reset button prevents accidental connections by others, enhancing connection reliability.
Versatile Connectivities: The P3 provides Bluetooth/RCA inputs and RCA/AUX OUT/3.5mm headphone outputs. It can help create a 2.1-channel audio system by connecting active speakers/an amplifier and a subwoofer. As a headphone amplifier, it supports headphones with impedance ranging from 16Ω to 300Ω.
Premium Components: It utilizes ELNA audiophile-grade capacitors and taper A pot. The bass and treble controls boast central detents for tone-defeating. With an SNR of up to 103dB and a crosstalk of 95dB, it helps form a HiFi audio system when paired with the V3 amplifier of the same series.
What You'll Get: Fosi Audio P3 Tube Preamplifier x1, User Manual x1, 5654W Vacuum Tube x2, 12V/1.5A Power Supply x1, a 24-month worry-free warranty and responsive customer service.

Product Description

Fosi Audio P3 Tube Preamplifier/Headphone Amp

Experience the unique charm from vacuum tubes.

The essence of tube amplification, experiencing the perfect harmony of technology and nature.

1 Headphone Output 2 RCA Input 3 Ideal Partner to V3 4 Desktop Preamplifier 5 Bass and Treble Controls

Audiophile-Grade Capacitors

Built-in quality Japanese ELNA caps for outstanding performance.
Qualcomm aptX Bluetooth QCC3031 Chip

Supports multiple codecs formats: SBC/AAC/aptX/aptX HD/aptX LL.
Logarithmic Potentiometer

Helps to achieve a fine volume tuning to match human ear's auditory characteristics.

1 Front Panel 2 Rear Panel 3 Capacitors 4 Bluetooth 5.1 5 Taper A Pot

Effortless Insertion & Removal

Suitable for 7-pin vacuum tubes. Please align each pinhole before installation.
DIY Your Stereo System

Applicable Vacuum Tube Model: 6K4/6J1/6J4/GE5654/6AK5, etc. vacuum tubes.
5654W Vacuum Tubes

Experience the unique charm from vacuum tubes.
The Synthesis of Tech and Nature

Embracing technology, staying close to nature, and maintaining global climate awareness.
Exquisite Craftsmanship

Utilizing CNC integrated molding, precise sandblasting, and meticulous detailing.

1 Easy to Install 2 Replaceable Tubes 3 Retro Aesthetic 4 Glacial Blue Light 5 All Aluminum Alloy

Press and hold for 3 seconds to clear Bluetooth pairing to solve the problem of Bluetooth being mistakenly connected by others.

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Customer Reviews	4.4 out of 5 stars 110	4.4 out of 5 stars 540	4.5 out of 5 stars 647	4.3 out of 5 stars 331	4.5 out of 5 stars 2,382	4.4 out of 5 stars 89	4.1 out of 5 stars 580
Price	$109.98$109.98	$99.97$99.97	$59.48$59.48	$69.99$69.99	—	$76.47$76.47	$71.98$71.98
Type	Preamp + Headphone Amp	2.0 CH Amp	Preamp	Headphone Amp + Preamp	Phono Preamp with Vacumm Tubes	Phono Preamp with Vacumm Tubes	Phono Preamp with Vacumm Tubes
Input	Bluetooth + RCA	RCA	RCA	AUX + RCA	RCA+3.5mm AUX	Blueooth + AUX + RCA	RCA+3.5mm AUX
Output	RCA + 3.5mm Headphone + AUX	Passive Speakers +Pre-out	RCA	3.5 mm + 6.35 mm	Active Speakers	Passive/ active speakers	RCA+3.5mm AUX
Treble & Bass Control	✔	✘	✔	✘	✘	✔	✔
THD	≤ 0.02%	≤ 0.003%	≤ 0.1%	≤ 0.03%	≤ 0.1%	≤ 0.1%	≤ 0.1%
SNR	≥ 103dB	≥ 110dB	≥ 98dB	≥ 95dB	≥ 98dB	≥ 98dB	≥ 70dB
Power Adapter	12V/1.5A	32V/5A	12V/1A	12V/1.5A	12V/1A	12V/1A	12V/1A