Fosi Audio V3 Stereo Amplifier 300W X 2 With 48V Power Supply

Integrated high-quality components and an innovative heat dissipation design ensure stable, high-performance output that meets the expectations of discerning audiophiles.

Embracing a minimalist design approach, the focus is placed entirely on elevating sound quality and performance, making it Fosi Audio’s best-sounding power amplifier to date.

Delivers superior audio quality and ultra-low distortion across the full frequency range while maintaining the high efficiency of Class-D amplification.

Compatible with 8-pin dual op-amps, allowing you to swap and customize the sound signature to match your personal listening preference.

Equipped with high-quality Japanese NCC, ELNA, and German WIMA capacitors to ensure exceptional audio performance and reliability.

Features professional-grade audio inductors with lower impedance, allowing support for higher current and improved overall performance.

Top and bottom vents combined with a full-body heatsink design improve airflow and cooling efficiency for stable high-power operation.

Compact Yet Powerful
The V3 mini power amplifier combines minimalist design with high performance. Delivering up to 600W, it easily drives 2–8Ω speakers with impressive clarity, making it ideal for bookshelves, desktop setups, or home theater systems.

Audiophile-Grade Components
Built around the TPA3255 Class-D amp chip, the V3 uses premium components including Japanese NCC, ELNA, and German WIMA capacitors, plus Japanese Sumida inductors. With a SINAD of up to 88dB, SNR of 110dB, and a noise floor as low as 140μV, it ensures clean, low-distortion audio reproduction.

Innovative Cooling
The V3 features a unique thermal design with top and bottom vents and a full-body heatsink to maximize airflow. This advanced cooling prevents component stress and maintains consistent performance even under demanding use.

Scalable and Fun
Customize your sound by rolling op-amps. The V3 supports various 8-pin dual op-amps like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA, and more, giving you full control over your tonal preferences.

• Chip Set: TI TPA3255
• Output Power: 300Wx2 @4Ω
• Terminating Impedance: 2-8Ω
• Input Mode: RCA
• Output Mode: Speaker Output + Pre-out
• Frequency Range: 20Hz-20kHz(±0.1dB)
• SINAD: 88dB

• THD: 0.003%
• SNR: ≥110dB
• Control Knob: Built-in Logarithmic Taper A pot
• Device Dimension: 6.5x4.1x1.4 inches
• DC Input Range: 24-48V
• Power Supply: 32V/5A, 48V/5A