〓性能特点〓MODE OUT-DOOR WS684 WS687 WS688 FULL-RANGE SPEAKER/HF DRIVER 4"×1 6.5"×1 4.5"×1 NOML POWER 10W 20W 10W MAX POWER 20W 40W 20W LINE VOLTAGE 70-100V 70-100V 70-100V SENSITIVITY(1m,1W) 90dB 89dB 90dB MAX SOUND PRESSURE LEVEL(1m) 100dB 102dB 100dB FREQ. RESP 85-15,000Hz 95-16,000Hz 160-12,000Hz DIMENSIONS(H×W×L) 650×60×510mm 300×405×470mm 550×290×480mm WEIGHT 4kg 11kg 7kg