In a conventional full range compression driver the phase plug must be located extremely close to the diaphragm, excursion of the diaphragm is limited and middle frequency performance is compromised. A typical large diaphragm dome compression driver has a limited high frequency response. Over 8 kHz the dome diaphragm breaks up causing resonance and harsh, metallic sound. The patented design of the BMS 4594 is a result of extensive dedicated research and development providing matic improvement in dynamic response, clarity and tansparency. The BMS annular midrange diaphragm covers the frequency range between 300 and 7.000 Hz with a smooth, linear response. The large diaphragm excursion of max. +/-0,8 mm results in high output and increased power handling up to 1.300 W peak.
Model: | ||
Throat diameter: | 1,4" (36 mm) | |
Nominal impedance: | 8Ω or 16Ω | |
Middle range (AES): | 150 W above 400 Hz | |
Peak: | 1000 W peak above 500 Hz | |
High range (AES): | 80 W | |
Peak: | 320 W | |
Sensitivity in |
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1W/1m: | 118dB on 40o x 20o horn | |
Frequency range: | 200 - 22000 Hz | |
Recommend crossover: | 300 Hz | |
Middle frequency range: | 300 - 7000 Hz | |
High frequency range: | 6000 - 22000 Hz | |
Middle / High crossover: | 6300 Hz | |
Voice coil high-range: | 1.75" (44.4 mm) | |
Voice coil mid-range: | 3.5 " (90 mm) | |
Magnet material: | Neodymium | |
Efficiency: | 35% (300 - 5000Hz) | |
Voice coil material: | Cooper Clad Aluminium (2 layers inside and outside of the VC) |
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Voice coil former: | Kapton | |
Diaphragm material: | Polyester |
Mounting Information
Overall diameter | mm | 132 (+/- 3)mm | ||
Depth | mm | 94 | ||
Net weight | kg | 2,63 |