pa school sound system 1.Power:2*300W/2*500W,4ohms 2.Input 6V/ ... :ISO 9001 4.Material:Aluminum alloy teaching pa school sound system This product is designed to amplify sounds to a high ... .7. External volume control to adjust. More pictures:PAYMENT:L/C,T/T,WESTERN UNION,ALIPAY,ESCROW is available.Please settle ... /F2102K-218A/AT10802 pairBH-061-3pcBLP-K10801set pa school sound system