4552 ND is the ultimate BMS driver in its class - for now
the smallest and lightest in its class the loudest in its class the most impressive of all is the superior sound Unique patented design Neodymium magnet assembly 113 dB sensitivity 1W / 1m 1 kHz crossover Extended high frequency response up to 20 kHz Very small size and low weight 44,4 mm voice coil BMS 4552 ND is a powerful 1" professional compression driver that delivers superb sonic quality in a small package. The unique BMS annular diaphragm together with the high energy neodymium magnet achieve very high sensitivity and linear frequency response up to 20 kHz. The sound of 4552 ND is extremely transparent and detailed, it has an exceptional dynamic range and produces even the most complex music signals with depth and definition.
4552 ND - 1" compression driver is designed for a wide variety of applications including high level professional reinforcement systems, studio monitors and high-end audio.
Durability and reliability are key in heavy-use professional applications. Therefore each driver is systematically tested to strict standards to ensure highest possible quality.
Specifications 4552 ND Throat diameter 1" (25,4 mm) Nominal impedance 8 or 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 aha_at 80 W Frequency range 500 - 20.000 Hz Recommended crossover 1.000 Hz Voice coil diameter 1,75" (44,4 mm) Magnet material Neodymium Flux density 2,2 T Voice coil material Cooper Clad Aluminium Voice coil former Kapton Diaphragm material Polyester
Mounting information Overall Diameter 85 mm (+/-0,1mm) Depth 36 mm Net weight 0,83 kg Two M6 holes, 180° on 76,2 mm diameter