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BMS 4555
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BMS 4555
BMS 4555 is a powerful 1.5" professional compression driver that delivers outstanding sonic quality in a small package. The BMS exclusive voice coil technology employs a light weight Copper Clad Aluminium wire wound inside and outside of the Kapton™ former to improve the heat dissipation, dramatically increasing the acoustic output and reliability of the driver while minimising the power compression.
The BMS 4555 - 1.5" compression driver is designed for a wide variety of applications including budget projects requiring 1.5" driver of high sonic quality. The 4555 offers all the benefits of the patented BMS compression driver in a 1.5" format, but at much reduced cost.
| Throat diameter: | 1.5" (38 mm) |
| Nominal impendance: | 8 or 16 Ohm |
| Power capacity (AES): | 80 W |
| Peak Power: | 450 W |
| Sensitivity | |
| CD Horn 90° x 75°, 1 W / 1 m: | 113 dB |
| Efficiency: | 25% (1000 - 3500 Hz) |
| Maximal SPL (cont.): | 132 dB at 80 W |
| Frequency Range: | 500 - 22000 Hz |
| Recommended Crossover: | 1000 Hz |
| Voice Coil Diameter: | 1.75" (44.4 mm) |
| Magnet Material: | Ferrite |
| Flux Density (Tesla): | 2 |
| Voice Coil Material: | Copper Clad Aluminum |
| Voice Coil Former: | Kapton TM |
| Diaphragm Material: | Polyester |
4555 MOUNTING INFORMATION
| Overall Diameter: | mm | 123 |
| Depth: | mm | 52 |
| Net Weight: | kg | 2.25 |
| 4 x M6 Holes, | 90° on 101.6 mm, | 4" Diameter |
