$79.90 Excl. VAT
Guaranteed secure & safe checkout.
Easily pay within 30 days after you have received your package.
Read more
The Fosi Audio P3 is a high-fidelity vacuum tube preamplifier designed to infuse your digital audio system with the soulful, harmonic richness of analog sound. It acts as the perfect control center between your audio sources and power amplifiers, offering both wired and high-definition wireless connectivity in a compact, premium chassis.
Jan GE5654 Tubes: The P3 comes standard with premium GE5654 vacuum tubes, known for their superior soundstage and longevity. They effectively soften digital harshness, delivering a smooth midrange and airy highs.
Tube Rolling Versatility: The sockets are compatible with a variety of tubes, including 6K4, 6J1, 6AK5, and EF95, allowing enthusiasts to "roll" tubes and fine-tune the sonic signature to their liking.
aptX HD Support: Unlike standard receivers, the P3 supports Qualcomm aptX HD, enabling 24-bit high-resolution wireless streaming. Enjoy wire-like sound quality from your smartphone or tablet with minimal latency.
Long-Range Stability: Features an external high-gain antenna for a robust wireless connection that maintains signal integrity even in complex home environments.
Precision Tone Control: Independent Bass and Treble knobs (with a center-detent for flat response) allow you to compensate for room acoustics or speaker characteristics.
Versatile Outputs: Equipped with RCA and 3.5mm AUX outputs, the P3 can drive power amplifiers, active speakers, or even act as a high-quality headphone buffer stage.
| Component | Specification |
| Input Mode | Bluetooth 5.0 (aptX HD/AAC/SBC), RCA |
| Output Mode | RCA, 3.5mm AUX Out |
| Vacuum Tubes | GE5654 x2 (Replaceable) |
| Frequency Response | 20Hz - 20kHz (±0.5dB) |
| SNR / THD | ≥ 103dB / ≤ 0.02% |
| Power Supply | 12V/1.5A |
The Fosi Audio P3 is more than just a volume controller; it is a sonic enhancer. By adding a dedicated tube stage to your system, you gain greater depth, better instrument separation, and a more immersive listening experience. Its sleek aluminum design and glowing tubes make it a striking addition to any audiophile's desktop.
Authentic Tube Amplification
Experience the unique charm from vacuum tubes.
The essence of tube amplification, experiencing the perfect harmony of technology and nature.
Built-in quality Japanese ELNA caps for outstanding performance.
Supports multiple codecs formats: SBC/AAC/aptX/aptX HD/aptX LL.
Helps to achieve a fine volume tuning to match human ear's auditory characteristics.
Suitable for 7-pin vacuum tubes. Please align each pinhole before installation.
Applicable Vacuum Tube Model: 6K4/6J1/6J4/GE5654/6AK5, etc. vacuum tubes.
Experience the unique charm from vacuum tubes.
Embracing technology, staying close to nature,
and maintaining global climate awareness.
Utilizing CNC integrated molding, precise sandblasting,
and meticulous detailing.
Signal-to-Noise Ratio≥103dB;Noise Floor: 64uV;Crosstalk: 95dB
RCA mode: steady red light Bluetooth pairing mode: blue light flashing Bluetooth connection built: steady blue light
Bluetooth Range: ≥10m Bluetooth Version: 5.1 Bluetooth Name: Fosi Audio P3
Press and hold for 3 seconds to clear Bluetooth pairing to solve the problem of Bluetooth being mistakenly connected by others.
Compare products to find the best one for your needs.
Type:Preamp+Headphone Amp
Power Supply:DC 12V/1.5A
Input:Bluetooth, RCA
Output:RCA, 3.5mm Headphone Jack, AUX
Treble & Bass Control:Yes
THD+N:≤0.02%
SNR:≥103dB
Type|:DAC+Headphone Amp
Power Supply:DC 12V/1.5A
Input:Bluetooth, USB, Optical, Coaxial
Output:RCA, 3.5mm Headphone Jack
Treble & Bass Control:Yes
THD：+N<0.003%
SNR：≥103dB
Type：Preamp
Power Supply：DC 12V/1.5A
Input：RCA x3
Output：RCA, Pre-Out
Treble & Bass Control：Yes
THD+N：≤ 0.003%
SNR：≥110dB
Type：DAC Preamp
Power Supply：DC 12V/1.5A
Input：USB, HDMI (ARC), Coaxial, Optical, Bluetooth
Output：XLR, RCA
Treble & Bass Control：No
THD+N：<0.00008%
SNR：≥126dB
The Fosi Audio P3 is a high-performance vacuum tube preamplifier designed to add warmth, depth, and musicality to your audio chain. It sits between your audio source (like a DAC or turntable) and your power amplifier. By running the signal through premium vacuum tubes, the P3 effectively rounds off the "digital harshness" of modern recordings, providing a more relaxed and analog-like listening experience.
Yes, the P3 is equipped with an advanced Bluetooth 5.1 chipset that supports high-definition audio formats such as aptX Adaptive and aptX HD. This allows you to stream lossless or high-res music wirelessly from your smartphone or laptop while still benefiting from the signature "tube warmth" before the signal reaches your speakers.
Absolutely. The P3 offers two levels of customization. First, it features precision Bass and Treble tone controls with a central "bypass" notch for tonal shaping. Second, it supports tube rolling, meaning you can swap the stock vacuum tubes for compatible models (like 5654W or 6K4). This allows audiophiles to "tune" the preamp to match their specific speakers or musical preferences.
By acting as a dedicated buffer and control center, the Fosi Audio P3 ensures that your power amplifier (such as the Fosi Audio V3 or ZA3) receives a clean, gain-matched signal. The P3’s internal circuitry is designed to provide high-voltage swings with ultra-low noise, which helps your power amp drive speakers more effortlessly, resulting in a wider soundstage and better instrument separation.
Yes, in addition to its RCA outputs for speakers, the P3 features a high-quality dedicated headphone output. This allows the device to function as a standalone tube headphone amplifier. Whether you are using sensitive In-Ear Monitors or full-sized headphones, the P3 provides a rich, lush soundstage that makes it an ideal all-in-one companion for your desktop audio setup.
