Key Features

High-Power Class-D Stereo Amplifier

Uses the Texas Instruments TPA3255 high-efficiency amplifier chip.
Rated up to 300W x 2 (4Ω) peak power (manufacturers often call this “600W”).
Real-world continuous power is lower but still strong enough for most bookshelf and many floor-standing speakers.

Wide Speaker Compatibility

Supports 2Ω – 8Ω passive speakers.
Works well with bookshelves, towers, and DIY speaker setups.

Clean & Dynamic Audio

Class-D architecture with low distortion and good efficiency.
Frequency response approx. 20Hz – 40kHz, covering the full audible range.

Simple Connectivity

RCA input only (no Bluetooth, no digital inputs).
Designed purely as a power amplifier with basic controls.

Compact & Minimalist Design

Small footprint suitable for desks, living rooms, or compact hi-fi installations.
Sturdy metal chassis for better heat handling and durability.

Basic Onboard Controls

Volume knob
Some versions include bass/treble adjustment (varies by model batch)

Description

Product Description:

The Fosi Audio TB10D is a class D amplifier designed to give you the most bang for your buck. This amplifier features an ultra-compact design with a maximum power output of 600W, making it perfect for small sound systems or 2-channel stereo systems.

The Best Sounding Class D Amplifier

Easy to install Class-D audio amplifier. Ideal for building a home audio sound system. Designed for high-quality audio output with an RCA input connection.

The High-Performance Audio Amplifier

True to its word, the TB10D delivers masterful performance with excellent power efficiency. Packing a powerful TPA3255 chip, this amplifier can drive your speakers with ease.

Specifications

Audio Input	RCA Input
Output Power	300W + 300W
Terminating Impedance	2Ω-8Ω
Frequency Range	20Hz – 20kHz (±1 dB)
THD	≤0.3%
SNR	≥90dB
Input Sensitivity	≤600mV
Power supply voltage range	18V-48V
Power supply	32V 5A
Product Size	166 x 105 x 40 mm
Net Weight	650g