A12 Audio Digital HiFi Class D Stereo Power Amplifier BT5.0 — Treble & Bass Controls for Home Theater Speakers, High Sound

A12 Audio Digital HiFi Class D power amplifier built for home theater speakers combines efficient performance with versatile playback options and tone control. It reaches efficiency up to 92% to reduce power consumption; offers a USB audio input with driver-free plug-and-play operation and supports U disk playback; and includes built-in treble and bass adjustment for easy matching to different speakers and music styles. Wireless is handled by a BT5.0 receiver with APTX for improved sound quality and longer transmission range. The unit is housed in an all-aluminum-alloy enclosure precision-machined by CNC, then anodized and chamfered for refined workmanship and a pleasant tactile finish.