4 channel home audio amplifier

At least one wall-mount model lists supported formats: WAV, MP3, WVA, APE, FLAC, AAC, AIFF, and WMA, and specifies ultra-low THD (~0.03% at 1 W, 1 kHz). Another model lists a frequency response of 20 Hz–20 kHz.

Power specs vary by model. Some list per-channel ratings such as 4 × 40 W (bridgeable to 2 × 80 W), while other listings advertise much higher peak or total wattage in marketing copy (examples shown: 3000 W, 800 W, and 500 W).

Many units include Bluetooth plus wired inputs such as USB, microSD/SD card, AUX/RCA and FM radio. Some models also list optical and Wi‑Fi inputs and mention streaming support like Chromecast or DLNA.

Multiple listings are 4-channel units; at least one specifically lists a bridge option (4 × 40 W, bridgeable to 2 × 80 W).