BMS 4554 is a powerful 1.4″ 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 4554 – 1.4″ compression driver is designed for a wide variety of applications including budget projects requiring 1.4″ driver of high sonic quality. The 4554 offers all the benefits of the patented BMS compression driver in a 1.4″ format, but at much reduced cost.
| Throat diameter: | 1.4″ (36 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 |
| 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 |
| Overall Diameter: | mm | 123 |
| Depth: | mm | 47 |
| Net Weight: | kg | 2.25 |
| 2 x M6 Holes, | 180° on 76.2 mm Diameter |
