Weatherproof monitors-WM4

B&W Speakers > Inwall > Weatherproof monitors-WM4

The WM4’s more compact cabinet houses a 130 mm (5 in) bass / midrange driver and a Nautilus™ tube-loaded tweeter. As with the other models, the WM4’s corrosion-proof materials and self-draining ‘J port’ resist the elements. And, in line with the WM6, the WM4’s wall bracket allows it to be angled in both vertical and horizontal directions.

  Description 2-way vented-box system
  Drive units 1x o25mm (1 in) Nautilus™ tube
loaded metal dome high-frequency
1x o130mm (5 in) woven fibreglass cone bass/midrange
  Frequency range -6dB at 60Hz and 30kHz
  Frequency response 72Hz–20kHz ±3dB on reference axis
  Dispersion Within 2dB of response on reference axis
Horizontal: over 40° arc
Vertical: over 10° arc
  Sensitivity 87dB spl (2.83V, 1m)
  Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)
<1% 95Hz–20kHz
  Nominal impedance 8Ω (minimum 3.0Ω)
  Crossover frequency 3.5kHz
  Recommended amplifier power 25W–90W into 8Ω on unclipped programme
  Max. recommended cable 0.2Ω
  Dimensions Height: 230mm (9.0in)
Width: 162mm (6.4in)
Depth: 187mm (7.4in)
  Finishes Black & Pearl White