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.
Throat diameter 1' '25,4 mm'
Nominal impedance 8 or 16 Ohm
Power capacity 'AES' 80 W
Peak power 450 W
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
Overall Diameter 123 mm
Depth 52 mm
Net weight 2,25 kg