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BMS 4594ND - 1.4 Coaxial Neodymium Compression Driver 8 Ohm / 16 Ohm

BMS 4594ND - 1.4" Coaxial Neodymium Compression Driver 8 Ohm / 16 Ohm

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BMS4594ND  - 1.4" Coaxial Neodymium Compression Driver

Features :
  • Extended Bandwidth (300 - 22000 Hz)
  • Neodymium Magnet Assembly
  • With two Subsystems in one, each Driver covers a smaller Frequency Range for increased Power Handling, high Dynamic and extremely low Distortion
  • Excellent Phase Coherence
  • Perfect Time Alignment without Problems of Multi-Source Interference
  • Ultra light Weight and small Size

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 ansparency. 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.


4594ND Specification

Throat diameter: 1.4" (36 mm)
Nominal impendance: 8 or 16 Ohm
Power capacity:  
Middle Range (AES): 150 W AES above 400 Hz
Peak: 1000 W peak above 500 Hz
High Range (AES): 80 W
Peak: 320 W
Sensitivity 1 W / 1 m: 118 dB on 40 x 20 Horn
Frequency Range: 300 - 220000 Hz
Recommended Crossover: 300 Hz
Middle Freuqency 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
Flux Density (Tesla): 2.0
Efficiency: 35 % (300 - 5000 Hz)
Voice Coil Material: Copper Clad Aluminium
  (2 Layers in- and outside of the VC)
Voice Coil Former: Kapton TM
Diaphragm Material:

4594ND Mounting Information

Overall Diameter: mm 132 ( 3 mm)
Depth: mm 94
Net Weight: kg 2.63
4 x M6 Holes, 90 on 101.6 mm, 4" Diameter
BMS4594ND Curves
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