ZK-TB21 50W+50W+100W 2.1CH Bluetooth 5.0 Subwoofer Amplifier Board – Bass/Treble Control, AUX/USB Input, Overload Protection, Compact for Vehicle Amplifier (ZK-TB21)
SAR 136
ZK-AS21P Bluetooth Amplifier Board – 300W+300W+600W Output, 18-50V DC Wide Voltage Input, Vehicle Amplifier (ZK-AS21P)
SAR 355
ZK-ST21 100Wx2+200W 2.1Channel Bluetooth Amplifier Board with Subwoofer, TPA3221 Chip, Bass/Treble Control, Bluetooth/AUX/USB Input, 12-30V Wide Voltage Vehicle Amplifier
SAR 188
ZK-3002T 300W+300W Stereo Power Amplifier Board with TPA3255 Chip & Bluetooth 5.0 | 18-50V Wide Voltage Input | AUX/USB/Bluetooth Multi-Mode | HiFi Audio for DIY Speakers
SAR 209