5531ND

1" High Frequency Neodymium Compression Driver

  • Unique Patented Design
  • Neodymium Magnet Assembly
  • 113 dB Sensitivity 1 W / 1 m
  • 1 kHz Crossover
  • Extended high Frequency Response up to 20 kHz
  • Very small Size and low Weight
  • 44.4 mm Sandwich in- and outside Voice Coil
  • 8 or 16 Ohm

New Generation BMS compression driver
Employing all unique BMS technologies like the ultra-low intermodulation distortion ring diaphragm, very high efficiency and a 44mm sandwich voice coil in an ultra-compact format, the BMS 5531ND sets a new standard in size to output ratio and provides the lowest crossover available at that size.

Great new potential
Loudspeaker system designers now can create modern products with no compromise, while reducing size, weight and cost of the driver components.

Unique solution for line arrays and beam steering systems
With an outside diameter of only 72mm the BMS 5531ND is a non-compromise solution for high output line arrays when it comes to putting maximum output in minimal height.

When multiple 5531ND drivers are closely mounted, the recommended crossover drops to 850Hz.

Because of its small size the BMS 5531ND is the only solution to create high output beam steering systems with perfect directivity control, low crossover of 850Hz and 72mm acoustical distance between sources.

Designing better point sources
In fact the recommended crossover is one octave lower than other drivers in this category while the maximum output is 4-6dB higher.

This allows to design high output loudspeaker systems with high fidelity, high resolution sound and perfect directivity while reducing size, weight and cost.

Applications:
– High quality point sources

– High output line arrays

– High output beam steering systems

Specification

5531ND Specification

Throat diameter: 1″ (25.4 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
Plane Wave Tube, 1 W / 1 m: 117 dB
Max. SPL (cont.): 132 dB at 80 W
Max. SPL (peak): 139 dB at 450 W
Frequency Range: 500 – 20000 Hz
Recommended Crossover: 1000 Hz
Voice Coil Diameter: 1.75″ (44.4 mm)
Magnet Material: Neodymium
Flux Density (Tesla): 2.2
Voice Coil Material: Copper Clad Aluminum
Voice Coil Former: Kapton
Diaphragm Material: Polyester

Mounting & Drawing

5531ND Drawing

5531ND Mounting Information

Overall Diameter: mm 72
Depth: mm 48
Net Weight: kg 0.675
1 3/8″ – 18N screw

Curves

5531ND Curves

Downloads

Downloads