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Compact silver aluminium stereo amplifier with bass and treble knobs, power switch and speaker terminals

Fosi Audio

Fosi Audio TB10A 2.0ch stereo amplifier 100W x 2

SKU CH-CRDP-YB762

Compact Class D stereo amplifier delivers 100W per channel into 4 ohms with bass and treble controls and a 24V power supply included

  • TypeAmplifiers
  • 100 W per channel drives 200–300 W speakers
  • 04 % THD keeps music clean and detailed
  • Bass and treble controls shape sound to taste
  • Compact aluminium chassis fits desktop or shelf
  • 24 V supply included for instant setup

Compact desktop amplifier

The Fosi Audio TB10A is a 2.0-channel Class D stereo amplifier rated at 100W per channel into 4 ohms. It targets listeners who want a simple, integrated amp for bookshelf speakers on a desk or in a small room. The unit accepts analogue input only and ships with a 24V power supply, AC cord and manual. No software or configuration is required.

Aluminium chassis and analogue connectivity

A sturdy, lightweight aluminium enclosure houses the TPA3116 chipset and provides a clean, pop-free start-up. Speaker terminals accept loads from 2 to 8 ohms, supporting passive speakers rated up to 300W at 4 ohms or 200W at 8 ohms. Rear-panel bass and treble controls allow quick tonal adjustment without external EQ. The only inputs are analogue RCA, so a source with a line-level output is necessary.

Thermal behaviour and power draw

The amplifier operates from a 15–24V supply with an RMS consumption range of 90–120W. Total harmonic distortion is specified at 0.04% at rated power, with a signal-to-noise ratio of 98dB. Frequency response covers 20Hz–20kHz within 1dB. The aluminium case acts as a heatsink, keeping the unit silent when idle and cool during typical listening sessions.

Highlights

  • 100 W per channel drives 200–300 W speakers
  • 04 % THD keeps music clean and detailed
  • Bass and treble controls shape sound to taste
  • Compact aluminium chassis fits desktop or shelf
  • 24 V supply included for instant setup

Specifications

TypeAmplifiers

Questions about this item

What analog input sensitivity does the TB10A require for full output?

The analog input sensitivity is 280 mV, so a typical line-level source will drive the amplifier to its rated 100 W per channel without additional gain.

What speaker impedance range can the TB10A safely drive?

The amplifier is rated for terminating impedances from 2 Ω to 8 Ω, allowing use with most bookshelf and floor-standing speakers within that range.

In which order should the power cord be connected to avoid a turn-on pop?

Plug the power cord into the amplifier first, then into the wall outlet; this sequence prevents the audible pop that can occur if the wall is connected first.

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