Treiber 1 4548 8 Ohm OEM-Typ

Driver 1" 4548 8 Ohm OEM-Typ
New frontiers For years, the production of compression drivers has relied on the same old principles. Design engineers and technicians have tried to improve durability and sonic characteristics by incorporating space age materials such as Titanium, Beryllium and Neodymium into highly specialised manufacturing methods. BMS has taken steps to go beyond the frontiers of conventional technology to produce superior high frequency compression drivers. The diaphragm is the piece de resistance of a BMS driver. For mechanical strength conventional diaphragms use a metal foil dome bonded to a synthetic surround. This construction method, however, increases the mass of the diaphragm resulting in poor sensitivity figures, less dynamics, considerable distortion and reduced high frequency response. BMS have developed a unique diaphragm without a dome that has less mass than traditional diaphragms. It has an exceptional dynamic range and produces even the most complex musical signals with depth and definition. Benefits The patented BMS design remarkably reduces diaphragm excursion and inertia. There is no loss of energy required to drive conventional diaphragms. That is why BMS drivers have a much higher sound pressure level and less dynamic compression than previous designs. Due to their reduced excursion and excellent transient response BMS drivers react extremely fast to peak level signals. The result is an increase in dynamic headroom and improved precise definition. In conjunction with the double-centered suspension the BMS diaphragm's reduced excursion also prevents those critical partial vibrations that cause harmonic distortion. Recommended crossover frequencies are notably lower on BMS drivers, yet model H 4546 is capable of reproducing high frequencies up to 25kHz unobtainable with conventional drivers! BMS compression drivers do not require protection circuits - they are virtually indestructible. By changing diaphragm geometry, diaphragm material strength and throat, BMS drivers may be custom tuned to different resonant frequencies. Technical specifications H 4548 Throat diameter 25 mm (1") Nominal impedance 8 Ohm Power capacity 45 W Crest factor 26 dB Frequency range 500-20.000 Hz Sensitivity (1W/1m) 112 dB Recommended crossover 800 Hz Highest frequency (-10dB) 20.000 Hz Distortion 2nd harmonic < 3 % Voice coil diameter 44.4 mm Voice coil material Aluminium Voice coil former Kapton Diaphragm material Polycarbonate Mounting information Overal diameter 126 mm Depth 52 mm Net weight 2,4 kg Two M6 holes, 180° on 76,2 mm diameter. Three M6 holes, 120° on 57 mm diameter. Specifications subject on change without notice.

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