2 channel subwoofer amp 4200w

{"cid":"91219651","title":"2.1 Channel Subwoofer Amplifier Board with 100W Bass Output and Bluetooth 5.0 TPA3116D2 Audio Stereo Equalizer","imgUrl":"https:\/\/img.chinax.com\/nimg\/c1\/dd\/e94ac30f677dc7cc903ad2c95ab6-200x200-1.jpg","attrs":{"Price":"NA","Brand Name":"creatall","Model Number":"CA-3169B","Minimum Order Quantity":"10pcs","Delivery Time":"5-8 working days","Certification":"CE, ISO9001","Place of Origin":"China","Payment Terms":"T\/T, AliPay, PayPal","Supply Ability":"1000 pcs\/day","Packaging Details":"Carton box","Type":"HIFI Power Subwoofer Amplifier Board","Product size":"100*75*30mm","power input":"DC 12-24V","Bluetooth receiving distance":"> 8 m","Audio input sensitivity":"600-800mV","Frequency response range:":"20Hz-20KHz","left and right channel speakers":"4-8 ohm","subwoofer speaker impedance:":"2-8 ohm"}}