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1" Exit HF Drivers

BM-D440 / BM-D440S


BM-D440

The P Audio has redefined its BM series of compression drivers. The BM-D440 is a state of the art high output compression driver. New developments P Audio Research and Development have produced new levels of performance. State of the art manufacturing methods insure extremely reliable and consistent designs. The new BM-D440 driver utilizes the recently developed CRT™ technology to substantially improve both the time domain response and reduce distortion through the critical upper vocal range (1.5 kHz to 5 kHz). This new technology, called Cavity Resonance Technology ™ (CRT) acts to acoustically minimize the cavity found under all suspension driver suspension elements. By employing CRT technology, P Audio engineers have been able to greatly improve the vocal accuracy in the frequency range where vocal intelligibility is located. Magnetic fluid has also been added to increase thermal transfer and mechanical damping. These changes to the diaphragm and magnet structure assembly have also increased the sound pressure levels and smoothed the response between 10 kHz and 20 kHz. The result is a more accurate system, particularly for vocal range program material.

The BM-D440 is a medium format titanium based diaphragm assembly mated to a close spaced circumferential phase plug geometry. The voice coil is a rectangular geometry, high temperature aluminum to insure extended high frequency response. This diaphragm geometry is ideally suited for foreground/background high performance pa systems. The 1.0 inch (25.4mm) throat exit makes the 440 an excellent choice for extended bandwidth and ultra high frequency applications such as three way designs. TheBM-D440 is ideally suited for line array applications or other applications where a mid bass horn or direct radiator driver is also used. This medium format throat and medium format diaphragm insures wide dispersion at very high frequencies and is an excellent choice for three way systems or medium power two way designs. The 1.0 inch throat is compatible with a variety of P Audio horns and also compatible with industry standard 1.0 inch bolt on horns.

BM-D440S

The P Audio has redefined its BM series of compression drivers. The BM-D440S is a state of the art high output compression driver. New developments P Audio Research and Development have produced new levels of performance. State of the art manufacturing methods insure extremely reliable and consistent designs. The new BM-D440S driver utilizes the recently developed CRT™ technology to substantially improve both the time domain response and reduce distortion through the critical upper vocal range (1.5 kHz to 5kHz). This new technology, called Cavity Resonance Technology ™ (CRT) acts to acoustically minimize the cavity found under all suspension driver suspension elements. By employing CRT technology, P Audio engineers have been able to greatly improve the vocal accuracy in the frequency range where vocal intelligibility is located. Magnetic fluid has also been added to increase thermal transfer and mechanical damping. These changes to the diaphragm and magnet structure assembly have also increased the sound pressure levels and smoothed the response between 10 kHz and 20 kHz. The result is a more accurate system, particularly for vocal range program material.

The BM-D440S is a medium format titanium based diaphragm assembly mated to a close spaced circumferential phase plug geometry. The voice coil is a rectangular geometry, high temperature aluminum to insure extended high frequency response. This diaphragm geometry is ideally suited for foreground/background high performance pa systems. The 1.0 inch (25.4mm) throat exit makes the 440S an excellent choice for extended bandwidth and ultra high frequency applications such as three way designs. The BM-D440S is ideally suited for line array applications or other applications where a mid bass horn or direct radiator driver is also used. This medium format throat and medium format diaphragm insures wide dispersion at very high frequencies and is an excellent choice for three way systems or medium power two way designs. The 1.0 inch throat is compatible with a variety of P Audio horns and also compatible with industry standard 1.0 inch screw/threaded on horns. The Ferrite based permanent magnetic system produces a very high efficiency and value. This makes the BM-D440S ideal for professional applications as well as fixed installation systems. The medium format Ferrite permanent magnet produces a very high conversion efficiency.

GENERAL SPECIFICATIONS

  Model   BM-D440   BM-D440S
  Throat diameter   25.4 mm/1 in   25.4 mm/1 in
  Mounting type   Bolt on   Screw on
  Nominal impedance   8Ω   8Ω
  D.C. resistance   6.8Ω   6.8Ω
  Power capacity   50 W   50 W
  Sound Pressure Level (1W@1M)
  (Loaded with 90x40 Horn)
  108 dB   108 dB
  Recommended crossover   1.5kHz or higher
  (12dB/Oct slope)
  1.5kHz or higher
  (12dB/Oct slope)
  Magnet   Ferrite   Ferrite
  Diaphragm material   Titanium   Titanium
  Net Weight   1.9kg (4.2lbs) 1pc   2kg (4.4lbs) 1pc
  Gross Weight   4kg (8.8lbs) 2pcs   4.1kg (9lbs) 2pcs
  Packing Dimension HxWxD(cm)   29 x 14.1 x 10.3 (0.15 Cu.Ft.)   29 x 14.1 x 10.3 (0.15 Cu.Ft.)

BM-D440 / BM-D440S


BM-D440

The P Audio has redefined its BM series of compression drivers. The BM-D440 is a state of the art high output compression driver. New developments P Audio Research and Development have produced new levels of performance. State of the art manufacturing methods insure extremely reliable and consistent designs. The new BM-D440 driver utilizes the recently developed CRT™ technology to substantially improve both the time domain response and reduce distortion through the critical upper vocal range (1.5 kHz to 5 kHz). This new technology, called Cavity Resonance Technology ™ (CRT) acts to acoustically minimize the cavity found under all suspension driver suspension elements. By employing CRT technology, P Audio engineers have been able to greatly improve the vocal accuracy in the frequency range where vocal intelligibility is located. Magnetic fluid has also been added to increase thermal transfer and mechanical damping. These changes to the diaphragm and magnet structure assembly have also increased the sound pressure levels and smoothed the response between 10 kHz and 20 kHz. The result is a more accurate system, particularly for vocal range program material.

The BM-D440 is a medium format titanium based diaphragm assembly mated to a close spaced circumferential phase plug geometry. The voice coil is a rectangular geometry, high temperature aluminum to insure extended high frequency response. This diaphragm geometry is ideally suited for foreground/background high performance pa systems. The 1.0 inch (25.4mm) throat exit makes the 440 an excellent choice for extended bandwidth and ultra high frequency applications such as three way designs. TheBM-D440 is ideally suited for line array applications or other applications where a mid bass horn or direct radiator driver is also used. This medium format throat and medium format diaphragm insures wide dispersion at very high frequencies and is an excellent choice for three way systems or medium power two way designs. The 1.0 inch throat is compatible with a variety of P Audio horns and also compatible with industry standard 1.0 inch bolt on horns.

BM-D440S

The P Audio has redefined its BM series of compression drivers. The BM-D440S is a state of the art high output compression driver. New developments P Audio Research and Development have produced new levels of performance. State of the art manufacturing methods insure extremely reliable and consistent designs. The new BM-D440S driver utilizes the recently developed CRT™ technology to substantially improve both the time domain response and reduce distortion through the critical upper vocal range (1.5 kHz to 5kHz). This new technology, called Cavity Resonance Technology ™ (CRT) acts to acoustically minimize the cavity found under all suspension driver suspension elements. By employing CRT technology, P Audio engineers have been able to greatly improve the vocal accuracy in the frequency range where vocal intelligibility is located. Magnetic fluid has also been added to increase thermal transfer and mechanical damping. These changes to the diaphragm and magnet structure assembly have also increased the sound pressure levels and smoothed the response between 10 kHz and 20 kHz. The result is a more accurate system, particularly for vocal range program material.

The BM-D440S is a medium format titanium based diaphragm assembly mated to a close spaced circumferential phase plug geometry. The voice coil is a rectangular geometry, high temperature aluminum to insure extended high frequency response. This diaphragm geometry is ideally suited for foreground/background high performance pa systems. The 1.0 inch (25.4mm) throat exit makes the 440S an excellent choice for extended bandwidth and ultra high frequency applications such as three way designs. The BM-D440S is ideally suited for line array applications or other applications where a mid bass horn or direct radiator driver is also used. This medium format throat and medium format diaphragm insures wide dispersion at very high frequencies and is an excellent choice for three way systems or medium power two way designs. The 1.0 inch throat is compatible with a variety of P Audio horns and also compatible with industry standard 1.0 inch screw/threaded on horns. The Ferrite based permanent magnetic system produces a very high efficiency and value. This makes the BM-D440S ideal for professional applications as well as fixed installation systems. The medium format Ferrite permanent magnet produces a very high conversion efficiency.