20w 8ohm pa system speaker

{"cid":"91224235","title":"20W\/40W PA System Speaker Adjustable Bracket Wall Speaker 100V ABS Material","imgUrl":"https:\/\/img.chinax.com\/nimg\/a9\/e6\/30e89a00163c10b7e6f612d26606-200x200-1.jpg","attrs":{"Model Number":"WTL-04","Minimum Order Quantity":"","dimension":"220*150*135","Impedance":"8ohm","Magnet Material":"Ferrite","Place of Origin":"Guangdong, China","Frequency response":"90-20KHZ","output power":"20W\/40W","warranty":"1 years","Shell Material":"ABS"}}

{"cid":"91196467","title":"0.5W 8ohm Precision Audio Speakers Commonly Used Accessories ISO2000 Approved","imgUrl":"https:\/\/img.chinax.com\/nimg\/14\/54\/f3343a9be290943445a9b76f02fa-200x200-1.jpg","attrs":{"Price":"$0.5\/pcs","Brand Name":"YUESEN","Model Number":"YD30-2S","Minimum Order Quantity":"15kpcs","Delivery Time":"2-4 weeks","Certification":"ISO2000, RoHS, REACH","Place of Origin":"China, Jiangsu, Changzhou","Payment Terms":"T\/T, Western Union","Supply Ability":"1-1.5million\/month","Packaging Details":"Carton size: 49*29*26.5cm","Product Name":"Precision Audio Speakers","Size":"30mm","Power":"0.5W","Impedance":"8ohm","Sound Pressure Level":"92\u00b13dB","Frequency Response":"F0-20kHz"}}

{"cid":"91225427","title":"Line Array Speaker Pa Pro Audio Digital Amplifier 1U Size 4ch 3500w Big Power","imgUrl":"https:\/\/img.chinax.com\/nimg\/e6\/fa\/f0f246b16a17d1e3a66ebd6cdc7e-200x200-1.jpg","attrs":{"Price":"contact us for price","Brand Name":"lmhf audio","Model Number":"K-4.35","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-4.35","8ohm power":"3500W","4ohm power":"5600W","2ohm power":"7280W","8ohm bridge":"10500W","4ohm bridge":"14560W","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"}}