--- product_id: 579728530 title: "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" brand: "fosi audio" price: "577.98 DT" currency: TND in_stock: true reviews_count: 6 category: "Fosi Audio" url: https://www.desertcart.tn/products/579728530-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier store_origin: TN region: Tunisia --- # Bluetooth 5.1 aptX HD/LL 54V tube voltage boost Bass & treble tone controls 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 **Brand:** fosi audio **Price:** 577.98 DT **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with vintage warmth and modern wireless freedom! ## Quick Answers - **What is this?** 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 by fosi audio - **How much does it cost?** 577.98 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/579728530-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier) ## Best For - fosi audio enthusiasts ## Why This Product - Trusted fosi audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Warm Tube Amplification:** Experience rich, natural sound with 54V tube voltage powering pure, dynamic audio. - • **Customizable Tone Control:** Fine-tune your bass and treble with central detents for perfect tonal balance and immersive listening. - • **Audiophile-Grade Components:** Premium ELNA capacitors and precision taper potentiometer deliver crystal-clear sound with 103dB SNR. - • **Seamless Wireless Connectivity:** Bluetooth 5.1 with Qualcomm QCC3031 chip ensures low latency and high-res aptX HD streaming. - • **Versatile Audio Inputs & Outputs:** Connect effortlessly via Bluetooth, RCA, AUX, or 3.5mm headphone jack for a custom HiFi setup. ## Overview The Fosi Audio P3 is a compact tube preamplifier and headphone amplifier that combines classic vacuum tube warmth with cutting-edge Bluetooth 5.1 aptX HD/LL wireless technology. Featuring a 54V tube voltage boost, audiophile-grade ELNA capacitors, and versatile connectivity options including RCA, AUX, and 3.5mm outputs, it supports headphones from 16Ω to 300Ω impedance. With precise bass and treble tone controls and a high signal-to-noise ratio of 103dB, the P3 delivers a rich, immersive HiFi audio experience perfect for modern stereo systems and discerning listeners. ## Description Product description Fosi Audio P3 Tube Preamplifier/Headphone Amp Experience the unique charm from vacuum tubes. aplus content video 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) 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 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. Review: could not insert the tubes so returned - The tubes come separately and I couldn't insert them - so I returned the item. Not sure why they didnt insert them in the factory? zero stars. Review: Perfetto per aggiungere calore - Prodotto di altissima qualità, perfetto per ascolto di musica ad alta definizione. Lo ho abbinato ad un amplificatore Yamaha S-A201 e suona perfettamente, riesce ad aggiungere quella nota di calore che manca all’amplificatore. ## Features - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CJBKWF43 | | Best Sellers Rank | #24,310 in Electronics ( See Top 100 in Electronics ) #9 in Home Audio Preamplifiers | | Brand | Fosi Audio | | Brand Name | Fosi Audio | | Customer Reviews | 4.4 out of 5 stars 527 Reviews | | Item Dimensions | 11 x 16 x 4 centimeters | | Item Weight | 500 Grams | | Item dimensions L x W x H | 11 x 16 x 4 centimeters | | Manufacturer | Fosi Audio | | Material Type | Plastic | | Minimum Supply Voltage | 12 Volts (DC) | | Minimum supply voltage | 12 Volts (DC) | | Model | P3 | | Number of Channels | 2 | | Number of channels | 2 | | Part Number | P3 | | Unit Count | 1 Count | | Voltage | 230 Volts | ## Product Details - **Brand:** Fosi Audio - **Item dimensions L x W x H:** 11 x 16 x 4 centimeters - **Manufacturer:** Fosi Audio - **Number of channels:** 2 - **Voltage:** 230 Volts ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61NP2Uy22eL.jpg) ## Questions & Answers **Q: I am unable to connect/align the vacuum tubes in the socket of the P3.** A: Remove the copper rings for easier tube installation. **Q: How to reset P3 Bluetooth？** A: Resetting the P3's Bluetooth with the RST hole in the back. **Q: Can the op-amps in P3 be replaced?** A: No, they cannot be replaced. **Q: P3 power supply compatibility** A: P3 is compatible with DC 12V/1.5A~3A power supply. **Q: Does P3 support LDAC?** A: No, it does not support LDAC. ## Customer Reviews ### ⭐ could not insert the tubes so returned *by M***R on 1 March 2025* The tubes come separately and I couldn't insert them - so I returned the item. Not sure why they didnt insert them in the factory? zero stars. ### ⭐⭐⭐⭐⭐ Perfetto per aggiungere calore *by M***A on 4 May 2026* Prodotto di altissima qualità, perfetto per ascolto di musica ad alta definizione. Lo ho abbinato ad un amplificatore Yamaha S-A201 e suona perfettamente, riesce ad aggiungere quella nota di calore che manca all’amplificatore. ### ⭐⭐⭐⭐⭐ Parlak ses güçlü bas tiz *by T***R on 16 May 2024* Uzun zamandır fosi audio ürünlerini satın alıyorum. Zamanından önce teslim ettiği için Amazon'a ve de kaliteli ürünleri uygun fiyatlarla sattığı için fosi audio ' ya teşekkürler. Bu cihazı; Fosi' nin BT20A pro amfimin çokta parlak olmayan sesine katkı sağlar ümidiyle aldım. Genelde yorumlarda V3 ile eşleştirenlerin yorumlarıni görünce satın alırken biraz tereddüt ettim. Çünkü bu amfilerin zaten bir preamfi özellikleri vardı. İkinci bir ön amfi ile nasıl eşleşir endişesi taşıdım. Ama sorun olmadı. Bağlantılarını yaptım ve çalışmasında herhangi bir sorunla karşılaşmadım. Bu cihaz, BT20A pronun sesini daha açık hâle getirdiği gibi bas ve tizlerde de belirgin bir iyileşme sağladı. Bazı yorumların aksine tüpleri yuvalarına yerleştirmek iki dakikami aldı ve takarken hiç zorlanmadım. Bu arada bir tespitte bulunmakta yarar görüyorum. Bu cihazlar küçük ve her bağlantıyı bu kutucuğa yerleştirmek zor olabilir. Ancak yine de preamfi katıni daha kaliteli yaparak ve fiyatını o oranda yüksek tutarak insanların sürekli başka cihazları satın almak zorunda bırakılmaması yararlı olur diye düşünüyorum. Ancak bu tespit ve öneri; Fosi' nin işine gelmeyebilir. İlave özellikleri olan cihazları üretmek ve çeşitlendirmek günümüzün bir satış politikası olabilir. Ama yine de fiyatı biraz yüksek tutarak daha entegre edilmiş ve ses kalitesi artırılmış cihazlar üretmekte iyi bir pazar yaratabilir. ## Frequently Bought Together - Fosi Audio 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 - Fosi Audio V3 Stereo Amplifier Home Audio 300 Watts x2 Power TPA3255 Class D Mini Amp 2 Channel Audio Component for Passive Bookshelf Tower Speakers Desktop Home Theater with 32V Power Supply - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/579728530-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier](https://www.desertcart.tn/products/579728530-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-28*