--- product_id: 576705840 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: "VT51670" currency: VUV in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.vu/products/576705840-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier store_origin: VU region: Vanuatu --- # Bluetooth 5.1 aptX HD/LL 54V tube voltage boost Bass & treble tone control 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:** VT51670 **Availability:** βœ… 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?** VT51670 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/576705840-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 - β€’ **Warm Analog Vibes:** True tube amplification delivers rich, immersive sound with deep bass and crisp highs. - β€’ **Ultimate Connectivity:** Versatile RCA, AUX, and headphone outputs support 16Ξ©-300Ξ© headphones and 2.1 speaker setups. - β€’ **Audiophile-Grade Build:** Premium ELNA capacitors and precision taper A pot for pristine sound clarity and tone control. - β€’ **Plug & Play Confidence:** Easy tube installation, smooth switching with no pops, plus a 24-month warranty for peace of mind. - β€’ **Seamless Wireless Streaming:** Bluetooth 5.1 with Qualcomm QCC3031 chip ensures low latency and HD aptX codecs for flawless audio. ## Overview The Fosi Audio P3 is a compact tube preamplifier that boosts audio signals to 54V for authentic warm sound, featuring Bluetooth 5.1 with aptX HD/LL for high-quality wireless streaming. It offers versatile connectivity options including RCA, AUX, and headphone outputs supporting a wide impedance range, enhanced by premium audiophile components and precise bass/treble controls. Ideal for creating a HiFi stereo setup or upgrading headphone audio, it combines vintage tube warmth with modern tech in a sleek, durable design. ## Description Free delivery and returns on eligible orders. Buy 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 at desertcart UK. Review: wow, my music just went from monochrome to colour! - My old and very cherished 1980’s music centre recently bit the dust, so I was looking to replace it in a cost effective way, but could not justify spending a fortune on an expensive amplifier which would only see occasional use, so after reading a few favourable reviews , I bought a Fozi V3 amplifier . I was a bit disappointed when I hooked it up to my Vintage Celestion speakers and connected my iphone to it to find that the sound was very underwhelming with a thin reedy sound so I put the V3 back in its box and forgot about it for a few months. One day , after a bit of googling I realised that I needed a pre-amp to boost the signal from the Iphone so I bought this Fozi P3 pre- amp for not a lot of money , connected it up to the Iphone / V3 amp /Celestion speakers and Wow ! , what a transformation. It sounded great . Inspired , I collected up all my old audio stuff, like a JBL 300 watt sub woofer I used in the car years ago, and I now have the best sounding sound system I have ever put together. With plenty of top end from the tweeters , I can really hear the high hats coming through , combined with earth shattering bass from the 300watt powered sub it sounds great . For the money, I think that this Fozi audio equipment is absolutely superb and fantastic value. This is an honest review, I bought the Fozi V3 and P3 with my own hard earned cash . I am really enjoying listening to music again ! Review: Works well, sounds good - For me the valves/tubes were very easy to fit, didn't need to remove the copper ring. Fosi must've listened to feedback and improved their processes. Build quality is very good. Case Is nicely anodised and smooth rounded corners. Looks the part. The sound Makes digital music sound more analogue. It doesn't smother the sound, but makes it that bit sweeter when required. It isn't like dumping 1Kg (2 pounds!) of sugar on your strawberries, for me it's a tiny dusting with a little cream just to dress it up. If that's your thing then go for it. If you don't think you don't want the sharp edges smoothed off a little it's still worth trying. You might like it. The switching and de-thump is very well managed, no pops and nasty clicks, helps protect your tweeters if you use it to drive a power amp like I do. Things that can be improved An extra input, say 3.5mm would be very welcome for another source. And a low pass (sub) output for those with a subwoofer. Perhaps that can be a new product for Fosi? ## 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 16Ξ© to 300Ξ©. - 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, 5725W 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 | 8,098 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 5 in Home Audio Preamplifiers | | Item model number | P3 | | Manufacturer | Fosi Audio | | Product Dimensions | 11 x 16 x 4 cm; 500 g | ## Product Details - **Brand:** Fosi Audio - **Color:** Black - **Item Weight:** 500 Grams - **Output Channel Quantity:** 2 - **Power Source:** AC ## 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/61tTkBBuxQL.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 ### ⭐⭐⭐⭐⭐ wow, my music just went from monochrome to colour! *by N***S on 8 July 2024* My old and very cherished 1980’s music centre recently bit the dust, so I was looking to replace it in a cost effective way, but could not justify spending a fortune on an expensive amplifier which would only see occasional use, so after reading a few favourable reviews , I bought a Fozi V3 amplifier . I was a bit disappointed when I hooked it up to my Vintage Celestion speakers and connected my iphone to it to find that the sound was very underwhelming with a thin reedy sound so I put the V3 back in its box and forgot about it for a few months. One day , after a bit of googling I realised that I needed a pre-amp to boost the signal from the Iphone so I bought this Fozi P3 pre- amp for not a lot of money , connected it up to the Iphone / V3 amp /Celestion speakers and Wow ! , what a transformation. It sounded great . Inspired , I collected up all my old audio stuff, like a JBL 300 watt sub woofer I used in the car years ago, and I now have the best sounding sound system I have ever put together. With plenty of top end from the tweeters , I can really hear the high hats coming through , combined with earth shattering bass from the 300watt powered sub it sounds great . For the money, I think that this Fozi audio equipment is absolutely superb and fantastic value. This is an honest review, I bought the Fozi V3 and P3 with my own hard earned cash . I am really enjoying listening to music again ! ### ⭐⭐⭐⭐⭐ Works well, sounds good *by Z***0 on 22 September 2024* For me the valves/tubes were very easy to fit, didn't need to remove the copper ring. Fosi must've listened to feedback and improved their processes. Build quality is very good. Case Is nicely anodised and smooth rounded corners. Looks the part. The sound Makes digital music sound more analogue. It doesn't smother the sound, but makes it that bit sweeter when required. It isn't like dumping 1Kg (2 pounds!) of sugar on your strawberries, for me it's a tiny dusting with a little cream just to dress it up. If that's your thing then go for it. If you don't think you don't want the sharp edges smoothed off a little it's still worth trying. You might like it. The switching and de-thump is very well managed, no pops and nasty clicks, helps protect your tweeters if you use it to drive a power amp like I do. Things that can be improved An extra input, say 3.5mm would be very welcome for another source. And a low pass (sub) output for those with a subwoofer. Perhaps that can be a new product for Fosi? ### ⭐⭐⭐⭐ Valves are a sod to fit - very little gain. Not much "Wow!" *by R***S on 6 January 2024* As others have said, the valves are a nightmare to fit. TOP TIP:- I used a nub of blutack to take an impression of the valve holder and then a small socket set socket to get the valve pins set to the right diameter to match the holes in the blutack impression. Without doing this the valves were never going in. I have played with, and modified, valve amps for 40+ years and never had such an extreme problem. The amp has very little gain, there was certainly no chance of pushing the power amp, not that you want to break the signal up, but the gain was almost no different to the line signal. The resulting sound is fine. Nothing unpleasant. It doesn't make you go "Wow!" either in a bad way or in good way really. It seems reasonably articulate, with no real vices, but it would be nice if it had a bit more "Wow!" I have seen reviews that suggest the headphone socket is a waste of time because of the lack of available gain. I haven't used it. I also haven't used the Bluetooth either so can't comment on any latency or quality in that respect. It is nice and compact and does the job I bought it for ... and it costs less than Β£100. Am I happy? Yeh, I guess, it's just not the sort of thing you say to people "Come and listen to this. It's awesome." It's fine. ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/576705840-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier](https://www.desertcart.vu/products/576705840-fosi-audio-p3-tube-preamp-headphone-amplifier-home-audio-preamplifier) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-08*