Class-T amplifiers have been around for over 20 years. They are tiny, cheap, lightweight, and look like toys. But they sound amazing. I bought a Bluetooth model (Nobsound G3 5.0 Amplifier) and hooked it up to a pair of old speakers. The sound is very clean with zero buzz or distortion. Anyone in my family can play music through the amp from their phones.
Powerful tiny Bluetooth amp
