Key Features

2-Channel Stereo Amplifier — As a stereo amplifier, V3 can power a pair of passive speakers, making it suitable for typical 2.0 / 2.1 hi-fi or home-audio setups.

High Power Rating (300 W RMS) — Advertised 300 W RMS output gives ample power for many bookshelf or small/medium floor-standing speakers. This means it can drive speakers to high volume with good headroom, which is useful for music, movies, or ambient listening.

Compact & Affordable All-in-One Solution — Compared to using separate components (pre-amp, power amp, AV receiver), V3 simplifies setup — you only need passive speakers, and the amp powers them directly. This makes it a cost-effective way to get solid stereo sound without a bulky rig.

Flexibility — Works with Variety of Passive Speakers — Since it's just a stereo amplifier, you can pair it with different passive speakers depending on your budget and preferences. Good for those who want flexibility to upgrade speakers later without changing the amp.

Good for Music, TV, Movies, Casual Listening — With its power and stereo configuration, it can serve well for many daily listening needs: music playback, TV/movie audio via connected sources, or general multimedia — balancing cost, simplicity, and performance.

Description

300 Watts x2 Power Output: Fosi Audio V3 is a mini HiFi class-D power amplifier that delivers a maximum power output of 600W into two channels, ensuring a powerful and high-fidelity audio experience.
Innovative Cooling System Design: Fosi Audio has made significant breakthroughs in the thermal design of the V3 amplifier. There are vents on the top and bottom of the case, and the chip heatsink is attached to the case to realise the whole-body heatsink design, enhancing air circulation and heat dissipation. Its special design allows for extended usage without compromising performance or causing any detrimental effects.
Hi-End Sound Quality: With Texas Instruments’ TPA3255 Class-D power amplifier chip, the V3 amplifier achieves exceptional power efficiency. With audiophile-grade materials, such as Sumida professional audio inductors, NCC high-capacity filter capacitors, German WIMA Output Capacitors, Japanese ELNA Capacitors, etc. Those high-quality components allow V3 to maintain very high stability even under high-power working conditions. With the V3, you can truly have an almost distortion-free music playback experience.
Enjoy Linear Volume Control: Built-in logarithmic Taper A Pot, the V3 amplifier is specifically crafted to meet the demands of audiophiles. Manage the audio volume in a much finer way suitable for the human ear, providing an immersive and pure sound enjoyment.
Customizable Sound Signature: The V3 amplifier features replaceable op-amp chips; there are two plug-ins: NE5532 Op-Amps can be replaced by SS3602, MUSES02, OPA2134PA Op-Amps, etc, enabling users to experiment and achieve their preferred sound signature by swapping different op-amp chips.
Compact and Versatile: Despite its compact size, the V3 amplifier has the capability to drive passive speakers effectively, making it a versatile choice to turntable amplifiers, CD players, and DVD players for creating a complete HiFi system.
What you get: V3 Power Amplifier x1, Power Adapter x1 (The plug of the power adapter will match the country of your delivery address), User Manual x1, our worry-free 24-month warranty, and friendly customer service.

Specifications

Model	V3
Output Power	300Wx2 @4Ω
Terminating Impedance	2Ω-8Ω
Input Mode	RCA
Output Mode	Speaker Output + Pre-out
Frequency Range	20Hz-20kHz(±0.1dB)
SINAD	88dB
THD	0.003%
SNR	≥110dB
Chip Set	TI TPA3255
Device Dimension	6.5×4.1×1.4 inches
Control Knob	Built-in Logarithmic Taper A pot
DC Input Range	24-48V
Power Supply	32V/5A, 48V/5A