BMS 4550 - 1 " Hochtontreiber 80 W 16 Ohm

BMS 4550 is a powerful 1' professional compression driver that delivers superb sonic quality in a small package. It has an exceptional dynamic range and produces even the most complex music signals with depth and definition.

BMS Elektronik GmbH located in Hannover, Germany is a leading manufacturer of compression drivers. BMS products are used by professional speaker and high-end companies globally.

The patented BMS design remarkably reduces diaphragm weight and inertia. There is no loss of energy required to drive conventional diaphragms. That is why BMS drivers have higher sound pressure level and less dynamic compression than conventional designs.

Specifications 4550

Throat diameter 1' '25,4 mm'

Nominal impedance 16 Ohm

Power capacity 'AES' 80 W

Peak power 450 W

Sensitivity in:

CD Horn 90°x75°, 1W / 1m 113 dB

Plane wave tube, 1mW 118 dB

Maximal SPL 'cont.' 132 dB 80 W

Frequency range 500 - 20.000 Hz

Recommended crossover 800 Hz

Voice coil diameter 1,75' '44,4 mm'

Magnet material Ceramic

Flux density 2,0 T

Voice coil material Cooper Clad Aluminium

Voice coil former Kapton

Diaphragm material Polyester



Mounting information

Overall Diameter 123 mm

Depth 52 mm

Net weight 2,25 kg