Fosi Audio V3 Mono Monoblock Power Amplifier TPA3255

Overview

The Fosi Audio V3 Mono is a stereo power amplifier designed for desktop, apartment, and living-room systems that need Texas Instruments TPA3255 Class-D power. Mini monoblock power amp with balanced XLR/TRS and RCA inputs for building multi-channel HiFi systems.

Built for listeners who want measurable performance without a bulky AV receiver, the V3 Mono focuses on clean power, useful I/O, and strong value. Standout points include Dedicated monoblock design up to 240W @4Ω; Balanced XLR/TRS and single-ended RCA inputs; SINAD up to 101dB (XLR), SNR ≥123dB. Use this product page to compare specs and photos before you buy on Amazon.

Key Features

• Dedicated monoblock design up to 240W @4Ω
• Balanced XLR/TRS and single-ended RCA inputs
• SINAD up to 101dB (XLR), SNR ≥123dB
• Auto signal sensing and swappable op-amps

Who It's For

Multi-channel HiFi builds, active/passive bi-amping, and listeners who want one dedicated monoblock per channel for cleaner power and flexible XLR/RCA inputs.

Setup & Connectivity

On the desk or in a living-room rack, the V3 Mono is easy to integrate: expect balanced XLR/TRS connectivity for lower noise in longer cable runs, RCA inputs for classic HiFi and desktop sources, swappable op-amps for tuning the sound signature. Review the photos and feature list on this page, then buy through Amazon when you are ready — the same Fosi Audio hardware sold on the official store.

Why Choose the V3 Mono

Choose the Fosi Audio V3 Mono when you want dedicated monoblock design up to 240w @4ω for passive speakers and multi-amp HiFi builds. It sits in the same product family as Fosi’s popular TPA3255 amplifiers, balanced DAC preamps, and gaming DAC/AMPs — compact components that punch above their price on Amazon and the official Fosi Audio catalog.

Why Fosi Audio

Fosi Audio builds compact HiFi amplifiers, DACs, and desktop audio gear that punch above their price. From TPA3255 stereo and mono power amps to 2.1 and Bluetooth models, Fosi Audio focuses on clean Class-D power, useful connectivity, and value. Shop the same products featured on Amazon with specs and photos collected here for easy comparison.

Compare & explore

Browse more amplifiers, compare with Fosi Audio ZA3 and Fosi Audio V3, or explore DAC & amp models for source components.