--- product_id: 560407547 title: "Fosi Audio V3 300W Class D Stereo Power Amplifier, TPA3255 Chip HiFi Audio Amplifier for Home Theater and Bookshelf Speakers, Compact Design with Advanced Heat Dissipation with 48V5A Power Supply" brand: "fosi audio" price: "€ 337.85" currency: EUR in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.hr/products/560407547-fosi-audio-v3-300w-class-d-stereo-power-amplifier-tpa3255 store_origin: HR region: Croatia --- # 300W x 2 max power output Advanced full-body heat dissipation Swappable 8-pin dual op-amps Fosi Audio V3 300W Class D Stereo Power Amplifier, TPA3255 Chip HiFi Audio Amplifier for Home Theater and Bookshelf Speakers, Compact Design with Advanced Heat Dissipation with 48V5A Power Supply **Brand:** fosi audio **Price:** € 337.85 **Availability:** βœ… In Stock ## Summary > 🎧 Elevate your sound game β€” because your music deserves the best seat in the house. ## Quick Answers - **What is this?** Fosi Audio V3 300W Class D Stereo Power Amplifier, TPA3255 Chip HiFi Audio Amplifier for Home Theater and Bookshelf Speakers, Compact Design with Advanced Heat Dissipation with 48V5A Power Supply by fosi audio - **How much does it cost?** € 337.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/560407547-fosi-audio-v3-300w-class-d-stereo-power-amplifier-tpa3255) ## 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€’ **Tailor Your Sound:** Easily swap op-amps like Sparkos SS3602 or MUSES02 to customize your audio signature and stand out in your audiophile circle. - β€’ **Cool Under Pressure:** Innovative heat dissipation vents and full-body heatsink ensure stable, distortion-free sound during marathon listening sessions. - β€’ **Sleek & Space-Savvy:** Compact, minimalist design fits effortlessly into any modern workspace or living room, blending style with high-fidelity function. - β€’ **Powerhouse Performance:** Delivers a robust 300W per channel to drive your home theater or bookshelf speakers with crystal-clear dynamics. - β€’ **Audiophile-Grade Components:** Built with premium Japanese and German capacitors and inductors for ultra-low distortion and pristine sound clarity. ## Overview The Fosi Audio V3 300W Class D Stereo Power Amplifier combines cutting-edge TI TPA3255 chip technology with advanced heat dissipation and premium audiophile components. Its compact design and swappable op-amps offer customizable, high-fidelity sound ideal for home theaters and bookshelf speakers. With ultra-low distortion (THD ≀0.003%) and a wide frequency response (20Hz-20kHz), it delivers powerful, clean audio performance that outperforms expectations at its price point. ## Description Product Description Fosi Audio V3 Mini Stereo Power Amplifier Integrated quality components and groundbreaking heat dissipation design enable high and stable performance catering to audiophiles' demand. Born for HiFi Enthusiasts Using a minimalist design language, focusing more on enhancing the sound quality and performance of the product, making it the best-sounding power amplifier of Fosi Audio to date. Max Power Output: 300Wx2@4Ξ© SINAD: 88dB | SNR: β‰₯110dB THD: ≀0.003% | Noise Floor: 140uV Frequency Response: 20Hz-20kHz TI TPA3255 Integrated Enabling superior audio quality & ultra-low distortion across the audio band with Class-D efficiency Swappable Op-Amps Compatible with 8-pin dual op-amps. Roll them to get your preferred sound signature Audiophile-Grade Capacitors Built-in quality Japanese NCC, ELNA, and German WIMA capacitors for outstanding performance Japanese SUMIDA Inductors Professional audio inductors which have lower impedance and enable support for larger currents Logarithmic Potentiometer Built-in taper A Pot: Be sure to set the source volume to at least 50% and adjust the V3 to maximum. Groundbreaking Heat Dissipation Vents on the top and bottom, and whole-body heatsink design enhance air circulation and cooling About the "Pre-out" The "Pre-out" level is NOT controlled by the volume control. How to change audio balance levels between the left and right audio channels? 1. Computer: Settings > Sound > Fosi Audio, and change the left and right balance levels. 2. iPhone: Settings > Accessibility >Audio/Visual> Balance, slide horizontal slider to the left or right to adjust the balance. How to change audio balance levels between the left and right audio channels? 1. Computer: Settings > Sound > Fosi Audio, and change the left and right balance levels. 2. iPhone: Settings > Accessibility >Audio/Visual> Balance, slide horizontal slider to the left or right to adjust the balance. Do I need a pair of the same opamps or can they be swapped in different combinations? If your OP-AMP is pin-to-pin (P2P), meaning the pins and functions of the two OP-AMPs are exactly the same, so you can directly install one model at a time. However, there might be a difference in sound quality or sound volume on one side. Do I need a pair of the same opamps or can they be swapped in different combinations? If your OP-AMP is pin-to-pin (P2P), meaning the pins and functions of the two OP-AMPs are exactly the same, so you can directly install one model at a time. However, there might be a difference in sound quality or sound volume on one side. What is a difference between two versions of V3 amp - 32v and 48v? Compared to a 32V power supply, a 48V power supply can enhance the amplifier's power output, providing more headroom to prevent distortion and enabling it to drive larger, more powerful, or higher-impedance speakers. What is a difference between two versions of V3 amp - 32v and 48v? Compared to a 32V power supply, a 48V power supply can enhance the amplifier's power output, providing more headroom to prevent distortion and enabling it to drive larger, more powerful, or higher-impedance speakers. Can the V3 amplifier be bridged to work as a monoblock amplifier? It doesn't support bridge mode. Can the V3 amplifier be bridged to work as a monoblock amplifier? It doesn't support bridge mode. Only one channel has a sound or unbalanced output? Cross-check left & right speakers, speaker wires, input cable eliminating either speaker or wiring. Please ensure that the speaker wire is correctly connected and not bent. Only one channel has a sound or unbalanced output? Cross-check left & right speakers, speaker wires, input cable eliminating either speaker or wiring. Please ensure that the speaker wire is correctly connected and not bent. Comparison Chart V3 Type 2.0 CH Amp MAX Power Output 300W x 2 Input RCA Output Passive SPK +Pre-out THD <0.003% SNR β‰₯110dB Power Adapter 48V/5A Learn More V3 Type 2.0 CH Amp MAX Power Output 300W x 2 Input RCA Output Passive SPK +Pre-out THD <0.003% SNR β‰₯110dB Power Adapter 48V/5A ZA3 Type 2.0 CH Amp/Monoblock MAX Power Output 180W x 2/235W x 1 Input RCA+XLR (¼”TRS) Output Passive SPK +Sub-out THD <0.006% SNR β‰₯106dB Power Adapter 48V/5A Learn More ZA3 2.0 CH Amp/Monoblock 180W x 2/235W x 1 RCA+XLR (¼”TRS) Passive SPK +Sub-out <0.006% β‰₯106dB V3 MONO Type Monoblock Amp MAX Power Output 240W x 1 Input RCA+XLR (¼”TRS) Output Passive Speaker THD <0.006% SNR β‰₯123dB Power Adapter 48V/5A Learn More V3 MONO Monoblock Amp 240W x 1 Passive Speaker β‰₯123dB TB10D Type 2.0 CH Amp MAX Power Output 300W x 2 Input RCA Output Passive Speakers THD ≀ 0.3% SNR β‰₯ 90dB Power Adapter 32V/5A Learn More TB10D Passive Speakers ≀ 0.3% β‰₯ 90dB 32V/5A BT20A PRO Type Bluetooth 2.0 CH Amp MAX Power Output 300W x 2 Input Bluetooth + RCA Output Passive Spk+Pre-out THD ≀ 0.03% SNR β‰₯ 108dB Power Adapter 32V/5A Learn More BT20A PRO Bluetooth 2.0 CH Amp Bluetooth + RCA Passive Spk+Pre-out ≀ 0.03% β‰₯ 108dB Review: Excellent Amplifer! Very musical results far beyond its price - An amazing amplifier given its size and price point. Properly set up, run in for 24 hours and with a decent Hi-Res Audio signal input, decent cables and suitable speakers and it makes music. The sound is very clean and detailed with no harshness or sibilance. The flat signal response reveals a lot of detail in the music. Not weighted to either end of the frequency range. Very dynamic, good fast attack on solo piano - always a difficult one to project realistically. Not a sound that is aggressive or wearing to listen to. Choosing matching components to provide a balanced system is important, so give it an MP3 input signal you get what you get - medium results, not Hi-Fi. As always one is listening to the system, not individual components. System matching very much matters to the tonal colour especially with cables and speakers. Certainly changing the speakers to +Β£1000 Spendor, Monitor Audio, Mission etc would unbalance the system and reveal some short-comings - but that would be to use this amplifier far outside its scope of system. One comment I see on several other reviews is the volume control level position ... In my opinion, this knob should be pulled off and set to the 6 o'clock position with the amplifier off (a bit like some older Naim units). Them when the unit is turned on, the volume control rate and progression are correct, in comparison with most expectations with minimum volume around 7 and 10 - 11 being a fair listening level. The 48v PSU now supplied with the unit is capable of providing the dynamic transient peaks without strain, providing adequate reserves and control to avoid 'smearing' of fast pieces and allow quiet passages to feel realistically contrasted with a wide dynamic range. The simplicity of single input and dispensing with tone controls means fewer sound compromises, and gives a superb perfomance far above the expected quality at this price. Enabling you to stop spending more cash on Hi-Fi and spend more on the music itself. Very enjoyable music-making and Very Recommended! Review: Small but mighty D-class amplifier - Well built. High quality components. Easily drives a pair of 8 Ohm tower speakers to loud levels without perceptible distortion. Volume control is tapered (logarithmic), not linear, so if you want to crank up the sound you should not be afraid to turn it up close to maximum. That is how it is designed (to give you most precise control over the lower to mid range volumes) but needs getting used to. Overall this is the best value amplifier I have ever bought. If you need more inputs/outputs, a remote control and tone controls, this is not for you but if you simply want to amplify a single signal source, with high fidelity and no appreciable distortion, to listen with passive speakers then this is the one to buy! ## Features - Immersive Audio Experience - Enjoy rich, detailed dynamics with the Fosi Audio V3 power amplifier, which delivers crystal-clear sound from delicate highs to profound lows. Its customizable op-amp design allows for personalization with upgrades like Sparkos SS3602, MUSES02, and other 8-pin dual options. - Exceptional Craftsmanship - The Fosi Audio V3 is meticulously engineered with high-quality components, ensuring durability and reliability. Its sturdy metal casing and sophisticated internal circuitry demonstrate our dedication to superior performance. Advanced heat dissipation technology keeps the amplifier cool during extended use, promoting stable operation and a longer lifespan. - Modern and Compact Design - With its compact form factor and sleek contemporary design, the V3 power amplifier is not only space-efficient but also a harmonious fit for various home decors. Its elegant shape and clean lines enhance any living room, study, or office space, offering both style and functionality. - Versatile for Various Settings - Enhance your home theater experience with the Fosi Audio V3, filling your living room with rich, immersive sound. Or, let it bring out the subtleties of your music in the quiet of your study or office. Its adaptability across various settings and portable design ensure consistently high-quality sound wherever you place it. - Performance Meets Practicality - The Fosi Audio V3 provides a listening experience that music enthusiasts and professionals will appreciate, striking a balance between superior sound quality and sensible spending. It's an audio solution that doesn't compromise on excellence, ensuring value in every note. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CGCSM191 | | Best Sellers Rank | 8,040 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 19 in Hi-Fi Amplifiers | | Box Contents | Power Supply | | Brand Name | Fosi Audio | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 319 Reviews | | Manufacturer | Fosi Audio | | Manufacturer Part Number | V3-48V | | Model Number | V3_48V/5A | | Product Warranty | 24 months | ## Images ![Fosi Audio V3 300W Class D Stereo Power Amplifier, TPA3255 Chip HiFi Audio Amplifier for Home Theater and Bookshelf Speakers, Compact Design with Advanced Heat Dissipation with 48V5A Power Supply - Image 1](https://m.media-amazon.com/images/I/51jOyYN2wnL.jpg) ## Available Options This product comes in different **Model** options. ## Questions & Answers **Q: How to change audio balance levels between the left and right audio channels?** A: 1. Computer: Settings > Sound > Fosi Audio, and change the left and right balance levels. 2. iPhone: Settings > Accessibility >Audio/Visual> Balance, slide horizontal slider to the left or right to adjust the balance. **Q: Do I need a pair of the same opamps or can they be swapped in different combinations?** A: If your OP-AMP is pin-to-pin (P2P), meaning the pins and functions of the two OP-AMPs are exactly the same, so you can directly install one model at a time. However, there might be a difference in sound quality or sound volume on one side. **Q: What is a difference between two versions of V3 amp - 32v and 48v?** A: Compared to a 32V power supply, a 48V power supply can enhance the amplifier's power output, providing more headroom to prevent distortion and enabling it to drive larger, more powerful, or higher-impedance speakers. **Q: Can the V3 amplifier be bridged to work as a monoblock amplifier?** A: It doesn't support bridge mode. **Q: Only one channel has a sound or unbalanced output?** A: Cross-check left & right speakers, speaker wires, input cable eliminating either speaker or wiring. Please ensure that the speaker wire is correctly connected and not bent. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Amplifer! Very musical results far beyond its price *by C***R on 2 June 2024* An amazing amplifier given its size and price point. Properly set up, run in for 24 hours and with a decent Hi-Res Audio signal input, decent cables and suitable speakers and it makes music. The sound is very clean and detailed with no harshness or sibilance. The flat signal response reveals a lot of detail in the music. Not weighted to either end of the frequency range. Very dynamic, good fast attack on solo piano - always a difficult one to project realistically. Not a sound that is aggressive or wearing to listen to. Choosing matching components to provide a balanced system is important, so give it an MP3 input signal you get what you get - medium results, not Hi-Fi. As always one is listening to the system, not individual components. System matching very much matters to the tonal colour especially with cables and speakers. Certainly changing the speakers to +Β£1000 Spendor, Monitor Audio, Mission etc would unbalance the system and reveal some short-comings - but that would be to use this amplifier far outside its scope of system. One comment I see on several other reviews is the volume control level position ... In my opinion, this knob should be pulled off and set to the 6 o'clock position with the amplifier off (a bit like some older Naim units). Them when the unit is turned on, the volume control rate and progression are correct, in comparison with most expectations with minimum volume around 7 and 10 - 11 being a fair listening level. The 48v PSU now supplied with the unit is capable of providing the dynamic transient peaks without strain, providing adequate reserves and control to avoid 'smearing' of fast pieces and allow quiet passages to feel realistically contrasted with a wide dynamic range. The simplicity of single input and dispensing with tone controls means fewer sound compromises, and gives a superb perfomance far above the expected quality at this price. Enabling you to stop spending more cash on Hi-Fi and spend more on the music itself. Very enjoyable music-making and Very Recommended! ### ⭐⭐⭐⭐⭐ Small but mighty D-class amplifier *by A***R on 25 August 2024* Well built. High quality components. Easily drives a pair of 8 Ohm tower speakers to loud levels without perceptible distortion. Volume control is tapered (logarithmic), not linear, so if you want to crank up the sound you should not be afraid to turn it up close to maximum. That is how it is designed (to give you most precise control over the lower to mid range volumes) but needs getting used to. Overall this is the best value amplifier I have ever bought. If you need more inputs/outputs, a remote control and tone controls, this is not for you but if you simply want to amplify a single signal source, with high fidelity and no appreciable distortion, to listen with passive speakers then this is the one to buy! ### ⭐⭐⭐⭐⭐ Holy smokes, this thing is awesome. *by P***K on 15 December 2025* After a recent house move I'm now faced with an awkward multiroom setup up issue as running long cables is problematic. The solution was running the pre-amp out of my main amp into a wi-fi transmitter reciever setup up meaning I needed the most basic of integrated amps to power my remote speakers. After much searching I found this and was sold simply on the functionality, i.e. one source input, volume control and speaker connects.... and nothing else. Then I started to read it might actually be a pretty good sounding amp... It arrived today and after a bit of jiggering it's now bypassing my main amp and powering my main speakers and whoosh! Yeah, there are some differences between the v3 and my CXA81, but you'd want there to be when one is nearly 10Γ— the price of the other. Bass is suitably punchy, soundstage appropriately broad... it's all very impressive for the money. If there's one flaw it's that is a bit precise in it's presentation, but then I've only rum it for 20 minutes, so it's not fun in yet, so who knows? Oh, and I went for the 48v/5amp power supply due to some reports saying without it it can struggle to drive bigger speakers/create suitable volume. Must say these may be unfounded. I'm running the Fosi at about ΒΌ to β…“ (you might be able to spot it in the photo) and I'm getting about 65 to 70 dB around 15-20cm from my old Celestions, so that's plenty loud enough for me. Need something that will power some speakers from one input, and had no other functionality... this is certainly going to do the job! ## Frequently Bought Together - Fosi Audio V3 Stereo Amplifier Home Audio 300 Watts x2 Power TPA3255 Class D Mini Speaker Amp 2 Channel Audio Component for Passive Bookshelf Tower Speakers Desktop Home Theater with 48V Power Supply - Fosi Audio Replaceable Control Knob Orange Controller for V3 Amplifier Stereo Amplifier Home Audio - WiiM Mini AirPlay 2 Wireless Audio Streamer, Multiroom Stereo, Preamplifier, Works with Alexa and Siri Voice Assistants, Stream Hi-Res Audio from Spotify, Amazon Music and More --- ## 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.hr/products/560407547-fosi-audio-v3-300w-class-d-stereo-power-amplifier-tpa3255](https://www.desertcart.hr/products/560407547-fosi-audio-v3-300w-class-d-stereo-power-amplifier-tpa3255) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-19*