Mini Class D Buthtooth Car Power Amplifier 2.1CH 40W 2x20W — Compact Hi‑Fi Subwoofer Stereo Booster for MP4/DVD/Home BASS

Compact Class D amplifier built from all-aluminum with a wire-drawn oxidation surface treatment for durability and appearance. The enclosure is fully metal and finished with a fine-sand spray and black anodized coating to give a textured, premium look. Independent controls allow separate adjustment of high and low frequencies so you can tune the exact band you prefer. Electrical filtering uses a red-ring inductor combined with a large-capacity filter to support stable bass performance. Ideal as a small-footprint stereo/subwoofer booster for car, MP4, DVD and home audio systems. Output: 2.1CH 40W (2x20W).