4594 1,4" 8ohm Coaxial Neodymium Compression Driver

In Stock: 2

Product Info

4594 1,4" 8ohm Coaxial Neodymium Compression Driver

BMS 4594 1,4" Coaxial Neodymium Compression Driver,
3,5" + 1,75" VC
8 Ohm

•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 dramatic improvement in dynamic response, clarity and transparency. 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.

•Throat diameter: 1.4" (36 mm)
•Nominal impendance: 8 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: 200 - 22000 Hz
•Recommended 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
•High Frequency Range Flux Density (Tesla): 2.2
•Middle Frequency Range Flux Density (Tesla): 1.95
•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: Polyester

Mounting Information
•Overall Diameter: 132 mm
•Depth: 94 mm
•Net Weight: 2.3 kg
•4 x M6 Holes, 90° on 101.6 mm
•4" Diameter

  • Model: BMS 4594/8
  • Shipping Weight: 2.3Kg
  • 6 Units in Stock
  • Manufactured by: BMS


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