Beyma WL-4 Waveguide 0,8 Inch

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RRP 619,00 €

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line array driver

This combination of high power neodymium compression driver with wave guide gives a straightforward solution to build a Line Array System, solving the difficult problem of achieving an optimum coupling between adjacent high frequency transducers. Instead of using expensive and complicated wave-shaping devices, a simple but effective wave guide transforms the circular aperture of the compression driver into a rectangular surface, without excessive angle aperture to provide low curvature to the acoustic wavefront, arriving to fulfill the curvature requirement for optimal acoustic coupling between adjacent sources until 18 kHz. This is achieved with the minimum possible length for low distortion, but without being excessively short, which would cause strong high frequency interferences. This waveguide can be combined with loudspeakers of different diameters but it specially matches with 8", 6" and 5" loudspeakers.

Key features:
  • Wave guide fulfilling requirements for Line Array applications.
  • 4" x 0.5" rectangular exit
  • Neodymium magnetic circuit for high efficiency.
  • Effective acoustical coupling up to 18 kHz.
  • True 105 dB sensitivity 1w @ 1m (averaged 1-7 kHz).
  • Extended frequency range: 0.7 - 20 kHz.
  • 1.75" voice coil for excellent power handling (40 w AES)

Short data

Usage as Mid-Highrange
Power Handling 40 Watt
Impedance 8 Ohm
Frequency from 700 Hz
Max. Frequency 20 kHz
Sound pressure 105 dB


Overall dimensions 107x40x68 mm
Baffle cutout 185 mm
Depth (Total) 195 mm
Membrane Type Dome
Membrane Material Polyester
Voice coil Ø 44.4 mm
Voice coil material Kapton
Magnet-weight 600 g
Magnet-inductance 1.8 T


DC-Resistance Re: 5.6 Ohm
BL Product Bl: 8 N/A
Sound pressure dB: 105 SPL

Frequency, Harmonic Distortion


Technical Dimensions

PDF-Product information

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