⚡ Fosi Audio V3-48V – Compact mono amplifier

TPA3255 – PFFB – RCA / XLR / TRS – 240W @ 4Ω

📌 Product description

The Fosi Audio V3-48V is a compact monoblock amplifier designed to drive a single passive speaker with excellent control and ample power headroom. It is based on the Texas Instruments TPA3255 chip and incorporates PFFB technology to improve frequency response and reduce load-related distortion.

With a 48V power supply, it can deliver up to 240W at 4Ω, while remaining compatible with speakers ranging from 2Ω to 8Ω. It accepts RCA, XLR, and 1/4″ TRS inputs, features a gain selection mode and automatic signal detection, and also allows for the replacement of op-amps to adjust the sound quality. It uses the TPA3255 and incorporates PFFB technology to improve frequency response and reduce load-related distortion.

🔧 Technical Specifications

• Type: Class-D mono amplifier.

• Chipset: Texas Instruments TPA3255.

• Technologie : PFFB.

• Inputs: RCA, XLR, 1/4″ TRS.

• Output: Mono speaker output.

• Power: up to 240W @ 4Ω.

• Supported impedance: 2Ω to 8Ω.

• SNR: up to 123 dB.

• THD: up to 0.006% or less, depending on the measurement.

• Frequency response: 20 Hz–20 kHz (±0.1 dB).

• Power supply: 48V / 5A.