At eBay, this open-box Fosi Audio BT20A Pro is $11 off the $75 regular price, and the seller says factory defects were fixed and cosmetic flaws addressed. The listing includes a 1-year Allstate Protection Plans warranty and 30-day free returns. The same amp is listed as new from another seller for $100. Buy Now at eBay
Features
300W x 2 output at 4 ohms Bluetooth 5.0 and RCA inputs Outputs to passive speakers, plus a pre-out for a subwoofer Frequency response of 20Hz to 20kHz Supports 24V to 48V DC power; includes 32V 5A power supply


