Fosi Audio HT4S 4CH Power Amplifier

The Fosi Audio HT4S 4CH Power Amplifier brings four channels of high-fidelity audio to your home system in a remarkably compact form. Designed to elevate your listening experience, this versatile amplifier is ideal for powering multi-room speaker setups, enhancing a home cinema configuration, or driving a dedicated stereo pair with bi-amping capability. Its flexible connectivity makes it equally suited to music enthusiasts seeking a clean, powerful upgrade for their existing components.

At the heart of the HT4S is a robust feature set that ensures seamless integration. Built-in Bluetooth allows wireless streaming from any device, while an optical S/PDIF input connects directly to your television or digital source for pristine audio. The amplifier also includes AUX input and pre-out via 3.5 mm jack, plus a dedicated subwoofer output channel to add deep, room-filling bass. Tone controls for bass and treble let you tailor the sound to your preference, and the included remote control offers convenient operation from across the room.

Technical performance is equally impressive, with total harmonic distortion kept to an ultra-low ≤0.03% for accurate, clean sound reproduction. A signal-to-noise ratio of 88 dB ensures minimal background noise, and the amplifier comfortably drives speakers with a minimum impedance of 4 ohms. Whether you are building a new system or upgrading an existing one, the Fosi Audio HT4S delivers reliable, high-quality amplification in a space-saving package.