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"}}

{"cid":"91225427","title":"Professional Portable Subwoofer Power Amplifier 1U 2 Channel 4200w","imgUrl":"https:\/\/img.chinax.com\/nimg\/46\/fb\/2b378bd3006980ef2589cbc1dc16-200x200-1.jpg","attrs":{"Price":"contact us for price","Brand Name":"lmhf audio","Model Number":"K-2.42","Minimum Order Quantity":"2","Delivery Time":"10-15 days","Certification":"CE, ROHS","Place of Origin":"Made In China","Payment Terms":"T\/T","Supply Ability":"500pcs\/month","Packaging Details":"carton","Model":"K-2.42","8ohm power":"4200W","4ohm power":"8500W","8ohm bridge":"15600W","4ohm bridge":"17000W","amplification class":"class D","Power supply mode":"switch mode power supply","working voltage":"90-270v, 50-60 Hz","frequency response":"20Hz-20kHz,+0\/-1dB","THD+N":"<0.5%,20Hz-20kHz","Intermodulation distortion":"<0.05%","slew rate":"50 V\/\u00b5s @ 8 \u03a9","damping factor":">5000 @ 20-200 Hz","S\/N ratio":">110dB","crossover":">75dB","Gain":"32dB\/35dB\/38DB\/41dB","Net Weight":"12 kg","Size":"480*88*530mm"}}