Description
Fosi Audio V3 Stereo Power Amplifier – 300W x2 TPA3255 Class D Mini Speaker Amp, 2‑Channel Audio Amplifier for Passive Bookshelf Speakers
Product Overview
The Fosi Audio V3 delivers crystal‑clear, distortion‑free sound with a powerful 300 W per channel output, making it the perfect companion for your passive bookshelf speakers. Built around the high‑efficiency TPA3255 Class D chip, this compact amplifier offers a sleek, modern design that fits effortlessly into any home‑audio setup.
Key Features
- Dual‑channel 300 W output (600 W total) – ample power for a wide range of speaker sizes.
- TPA3255 Class D architecture – delivers low distortion and high efficiency.
- Compact 2‑inch form factor – ideal for bookshelf or small‑room installations.
- Built‑in protection – over‑temperature, short‑circuit, and over‑current safeguards.
- Balanced XLR and RCA inputs – flexible connectivity for all audio sources.
- Low noise floor (<0.1 dB) – ensures pristine audio quality.
- High‑quality components – premium capacitors and heat‑sink for reliable performance.
Specifications
- Power Output: 300 W per channel (peak)
- Frequency Response: 20 Hz – 20 kHz ±3 dB
- Signal‑to‑Noise Ratio: >90 dB
- Impedance: 4 Ω – 8 Ω
- Dimensions: 70 mm × 70 mm × 30 mm
- Weight: 0.9 kg
- Input Impedance: 10 kΩ
- Operating Temperature: 0 °C – 45 °C
Why Choose the Fosi Audio V3?
Whether you’re upgrading a home theater, building a dedicated music system, or simply looking for a powerful yet space‑saving amplifier, the Fosi Audio V3 offers:
- Exceptional sound clarity with minimal distortion.
- Reliable, long‑term performance thanks to robust protection circuitry.
- Easy installation – plug‑and‑play with standard audio connectors.
- Value‑for‑money – high‑end performance at an affordable price point.
Elevate your audio experience with the Fosi Audio V3 – the ultimate 2‑channel Class D amplifier for passive bookshelf speakers.






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