Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio
Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls - Fosi Audio

Fosi Audio P3 Tube Preamp with Bluetooth aptX LL HD Bass and Treble Tone Controls

Regular price
$79.99 USD
Sale price
$79.99 USD
Regular price
$79.99 USD
Tax included. Shipping calculated at checkout.
  • Authentic Tube Amplification
  • Qualcomm aptX LL Bluetooth
  • Treble & Bass Adjustment
  • Ideal Partner to V3 Amp
Learn More

Embark on a Warm & Rich Musical Journey

The essence of tube amplification, experiencing the perfect harmony of technology and nature.
RMS Power: 250mw @16Ω; 150mw @32Ω; 32mw @250Ω; 20mW @300Ω
Headphone Impedance: 16-300Ω; SNR: ≥103dB; THD: ≤ 0.02%
Input: Bluetooth 5.1/RCA; Output: RCA/AUX/3.5mm headphone jack; Dynamic Range: 104dB; Frequency Response: 20Hz-20kHz(±1dB)
Headphone Output
RCA Input
Partner to V3
Desktop Preamp
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.

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.

Key Parameters

Signal-to-Noise Ratio≥103dB; Noise Floor: 64uV; Crosstalk: 95dB

Mode Indicator

RCA mode: steady red light; Bluetooth pairing mode: blue light flashing; Bluetooth connection built: steady blue light.

Bluetooth Connectivity

Bluetooth Range: ≥10m Bluetooth Version: 5.1 Bluetooth Name: Fosi Audio P3

Bluetooth Reset

Press and hold for 3 seconds to clear Bluetooth pairing to solve the problem of Bluetooth being mistakenly connected by others.
  • 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. (Important Tips: Remove the copper rings for effortless installation of the tubes on the P3.)

  • 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.

RMS Power: 250mw @16Ω;150mw @32Ω;32mw @250Ω;20mW @300Ω
Headphone Impedance: 16-300Ω
Noise Floor: 64uV
Input Mode: Bluetooth, RCA
Output Mode: RCA, 3.5mm Headphone Jack, AUX Out 
Frequency Range: 20Hz-20kHz(±1dB)
Dynamic Range: 104dB
THD: ≤0.02%
SNR: ≥103dB
Crosstalk: 95dB
Bluetooth Chip: QCC3031
Bluetooth Version: 5.1
Bluetooth Range: ≥10m
Bluetooth Codecs: SBC/AAC/aptX/aptX HD/aptX LL
Power Input DC: 12V/1.5A~3A;

  • Fosi Audio P3 Tube Preamplifier x 1

  • 5654W Vacuum Tube x 1

  • 12V/1.5A Power Supply x 1

Customer Reviews

Based on 40 reviews
88%
(35)
13%
(5)
0%
(0)
0%
(0)
0%
(0)
C
Cristian Fan
Cristian Fan

It’s by far the greatest addition to my system and until recently didn’t knew I have the perfect sound connecting trough the wire directly. I’ll surely buy more units when i’ll have the chance for my second system.
Keep the perfection up to the levels that keeps us glued to the company!

D
Debora Fassoli
Amazed by its quality and surprised by its price!

The Fosi Audio P3 tube preamplifier costs a tenth of my current preamplifier, but the differences are only in the midrange nuances. The low frequencies are not rendered as well, but more than enough.
Now I can listen to good music even when I am in the office!

J
Joseph Russo
Fosi P3

Great sound, better than expected. Fast shipping too. Excellent value.

Z
Zoran Jankovic
P3

I have been using the Fossey P3 Preamplifier for a few months now and I am very happy with it. I have connected 2 systems and 2 pairs of speakers to it via the LC 30 VU meter.
I use it occasionally when I listen to vinyl LP BOX X2.
I expect Fosey to release a Preamplifier with a turntable input and an RCA input for other devices so that I don't have to use 2 preamplifiers...

C
Customer
Fosi P3 impressions

I have owned the P3 for about three weeks, having purchased it following the announcement of availability. I have owned a number of Fosi products in the past and have been very pleased with the build quality and performance of all.

I find the P3 to perform flawlessly thru either the Bluetooth or analog inputs. The sound exhibits correct instrmental and vocal timbre with an expansive headstage that exhibits accurate placement of instruments and vocalists.

To add to the transportability, I am using a 12v Talentcell lithium battery when paired with my battery-powered external amplifier.

In summary, I can recommend the P3 without reservation as a well-designed, great sounding addition to any compact audio system!

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