Bms 4599 ND 4ohms 2” dual diaphragm BMS 4599ND IS A HIGH POWER 2" DUAL DIAPHRAGM MID FREQUENCY COMPRESSION DRIVER 2 VOICE COILS HANDLING THE MIDRANGE WHICH ALLOWS FOR HIGHER POWER HANDLING & LOWER DISTORTION HIGH POWER OF 400 WATTS AES & 2,000 WATTS PEAK EXTENDED FREQUENCY RANGE FROM 200HZ TO 9KHZ, VERY HIGH SENSITIVITY OF 123DB SPL & DUAL 3.5" VOICE COILS LIGHTWEIGHT NEODYMIUM MAGNET WEIGHS 6.82LBS. POLYESTER DIAPHRAGM HELPS TO DELIVER A SMOOTH SOUNDING MIDRANGE SOUND FOR ALL HIGH QUALITY & HIGH POWER MID FREQUENCY APPLICATIONS