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Fosi Audio V3 stereo amplifier (>2x 300W, 4 Ohm)

Fosi Audio
Fosi Audio V3 stereo amplifier
Fosi Audio V3 stereo amplifier - Lifestyle
Fosi Audio V3 stereo amplifier - Lifestyle
Fosi Audio V3 stereo amplifier - Lifestyle
Fosi Audio V3 stereo amplifier - Back

Fosi Audio V3 stereo amplifier – 300W x 2, premium components, swappable op-amps, efficient cooling and Hi-Fi sound in a compact design.

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Highlights:

• 300W x 2 Hi-Fi stereo amplifier with TPA3255 chip
• Swappable op-amps for customized sound
• Advanced heat dissipation with full-body heatsink
• Compatible with 2–8 Ohm speakers
• Audiophile-grade components from NCC, ELNA, and WIMA
• Compact design for home theater, desktop, or bookshelf
• Ultra-low distortion (THD =0.003%) and high SNR (=110dB)

Powerful Sound in a Compact Design:

The Fosi Audio V3 is a mini Hi-Fi stereo amplifier designed for enthusiasts who want powerful and clear sound in a compact format. With up to 300W per channel, it easily drives speakers from 2 Ohm to 8 Ohm and is perfect for home theaters, desktops, or bookshelf setups. It features the advanced TPA3255 Class-D chip from Texas Instruments, delivering high efficiency and low distortion, while producing detailed and dynamic audio. Whether you're listening to smooth jazz, electronic beats, or heavy rock, the V3 provides a precise and vibrant soundstage that exceeds expectations for its size. Its minimalist design makes it discreet and easy to integrate into any space without compromising performance, making it ideal for both beginners and audiophiles alike.

High-End Sound with Premium Components:

The V3 is built with no-compromise components, including Japanese NCC and ELNA capacitors and German WIMA capacitors—renowned for their reliability and sonic quality. Japanese SUMIDA inductors reduce impedance and support higher currents, improving overall performance. These components work together to deliver an ultra-low noise floor of just 140uV, a SINAD of 88dB, and an impressive SNR of 110dB. This ensures a rich listening experience with deep clarity and dynamic range, even at high volumes. Additionally, the internal circuitry is optimized to minimize interference and preserve signal integrity from input to output, making the V3 one of the most refined and accurate amplifiers in its class.

Efficient Cooling and Sound Customization:

One of the standout features of the Fosi Audio V3 is its advanced heat dissipation system. Vents on the top and bottom, combined with a full-body heatsink, keep the amplifier cool during extended use. This ensures long-term performance and protects internal components from overheating. The V3 also supports op-amp rolling—ideal for audio enthusiasts who love to tweak their sound. It ships with the NE5532 by default but supports a variety of 8-pin dual op-amps like Sparkos SS3602, MUSES02, and OPA2134PA. This allows you to fine-tune the sound signature to your liking, whether you prefer added warmth, enhanced detail, or greater soundstage width.

Reliable Performance and Easy Integration:

The V3 is flexible and reliable. It connects via RCA input and includes both speaker output and pre-out, making it suitable for a variety of setups. Note that the pre-out is not volume-controlled since the V3 is not an integrated amplifier. It is available with multiple power supply options—32V/5A, 48V/5A, and GaN 48V/5A so you can choose the power that suits your needs. The orange knob is not included.

Specifications:

• Chipset: TI TPA3255
• Output Power: 2x 300W @4 Ohm
• Impedance: 2–8 Ohm
• Input: RCA
• Output: Speaker Output + Pre-out
• Frequency Response: 20Hz–20kHz (±0.1dB)
• SINAD: 88dB
• THD: =0.003%
• SNR: =110dB
• Noise Floor: 140uV
• Op-Amp: NE5532 (swappable)
• Control Knob: Logarithmic taper A potentiometer
• Dimensions: 6.5 x 4.1 x 1.4 inches
• DC Input Voltage: 24–48V
• Power Supply Options: 32V/5A, 48V/5A, GaN 48V/5A

Brand description - Fosi Audio

Fosi AudioFosi Audio redefines HiFi by combining innovation, quality, and value. Since 2017, they have been creating high-performance home audio solutions that integrate advanced technology with affordability. Our product range includes amplifiers, DACs, speakers, and headphone amps—designed in close collaboration with users to ensure an unparalleled sound experience. With a passion for HiFi and a commitment to excellence, they continue to deliver top-tier sound without the premium price tag.

Manuals and user guides for Fosi Audio products

Unfortunately, as manufacturers do not make manuals or guides in all languages, we cannot guarantee that a local language manual is included for the item.
- If you are unsure about a manual available in the desired language, just contact us and we will do what we can to help.


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