ZK-HT21 Class D amplifier 2.1 channel | Unboxing, Full-testing & Review

Model: ZK-HT21 IC: TDA7498E Basic Parameters ~input voltage: DC 15-36 V ~max power: 160W*2 R&L + 220W subwoofer ~input souce: Bluetooth/AUX/USB ~channel: 2.1 (R&L+subwoofer) ~output: 30-200W 4-8 ohms ~bluetooth version: 5.0 49ft. ~protection: anti reverse connection, under voltage, overheating, over current, short circuit