ดอกลำโพง18นิ้วFAST18220ดอกลำโพง1200w.วอยซ์4นิ้ว

FAST18220 1200w.วอยซ์4นิ้ว NOMINAL IMPENDANCE 8ohm + 15% at 13V Hz DIRECT CURRENT RESISTANCE 5.2ohm + 15% RESONANCE FREQUENCY 37 Hz * 10% Hz By Fo TEST Machine 37 Hz * 10% Hz By ATB SOUND PRESSURE LEVEL 95 dB - 2dB IM/IW BY ATB FREQUENCY RANGE 2KHz RATED POWER 800W MAX POWER 1200W BUZZ & RATTLE TEST 54V SIN WAVE BL factor 23*10% T*M POLARITY POSITIVE + (RIGHT) HAND TERMINAL Voice coil mateerial(diameter) TIL COPPER 100MM/4inch Basket Cast Aluminium MAGNET 220x110x22 Y25 SPEAKER WEIGHT 12 kg HUMIDITY TEST 40C - 2C 95% RH 48 H DROPPING TEST 1150 mm 750 + 20 APPEARANCE NOT INFLUENCE THE VALUE OF SPEAKER sphere of application woofer FREQUENCY RESONANCE CURVE AS ATTACHED DRAWING