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Product WM4 
Manufacturer B&W 
Category Outdoor Speakers 
Price POA 
Notes The WM4 uses the same compact sized cabinet as the WM2 weatherproof through the use of corrosion proof materials and a novel self-draining 'J' port to supplement the bass output. WM4 adds a Nautilus tube-loaded metal dome tweeter to the 130mm (5 in) woven fibreglass cone bass/midrange driver and a more versatile wall bracket which allows the speaker to be angled in both vertical and horizontal directionsDescription 2-way vented-box system Dimensions Height: 230mm (9.0 in) Width: 162mm (6.4 in) Depth: 187mm (7.4 in) Net Weight 3kg (6.6 lb) Freq. Response 72Hz - 20kHz 3dB on reference axis Freq. Range -6dB at 60Hz and 30kHz Sensitivity 87dB spl (2.83V, 1m) Normal Impedance 8 ohms (minimum 3.0 ohms) Power Handling 25W-90W continuous into 8ohms on unclipped programme Drive Units Unit 1: 1x 130mm (5 in) Woven fibreglass cone bass/mid Unit 2: 1x 25mm (1 in) high-frequency Unit 3: Dispersion Description: Within 2dB of response on reference axis Horizontal: over 40 deg. arc Vertical: over 10 deg. arc Harmonic Distortion 2nd & 3rd harmonics <1% 95Hz - 20kHz (90dB spl, 1m) Crossover Frequency 3.5kHz Max. Recommended Cable Impedance 0.2 ohms  
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