BMS 4590

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4590 / 4590P Specification

Throat diameter:	2" (50.8)
Nominal Impendance:	8 or 16 Ohm
Power capacity:
Middle Range (AES):	150 W AES above 400 Hz
Peak:	1000 W peak above 500 Hz
High Range (AES):	80 W
Peak:	450 W
Sensitivity 1 W / 1 m	118 dB on 2242 Horn
Frequency Range (Hz):	300 - 22000
Recommended Crossover:	300 Hz
Middle Frequency Range:	300 - 7000 Hz
High Frequency Range:	6000 - 22000 Hz
Middle / High Crossover:	6300 Hz
Voice Coil High Range:	1.75" (44.4 mm)
Voice Coil Mid Range:	3.5" (90 mm)
Magnet Material:	Ferrite
Flux Density (Tesla) high:	2.1
Flux Density (Tesla) mid:	1.95
Efficiency:	35 % (300 - 5000 Hz)
Voice Coil Material:	Copper Clad Aluminum
	(2 layers in- and outside of the VC)
Voice Coil Former:	Kapton TM
Diaphragm Material:	Polyester

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