Technical Specifications : DS7

Description 2-way closed-box selectable dipole/monopole surround system
Dimensions Height: 302mm (11.9 in)
Width: 383mm (15.1 in)
Depth: 165mm (6.5 in)
Net Weight 8.5kg (19 lb)
Freq. Response 80Hz – 22kHz ▒3dB on reference axis (monopole mode)
80Hz – 10kHz ▒3dB power averaged over front hemisphere (dipole mode)
Freq. Range -6dB at 60Hz and 42kHz (monopole mode)
-6dB at 60Hz and 15kHz (dipole mode)
Sensitivity 89dB spl (2.83V, 1m)
Normal Impedance 8Ω (minimum 3.0Ω)
Power Handling 25W – 120W into 8Ω on unclipped programme
12V trigger current requirement 45mA
Drive Units Unit 1: °165mm (6.5 in) woven Kevlar« cone bass/midrange
Unit 2: 2x °100mm (4 in) midrange/high frequency
Unit 3: °25mm (1 in) alloy dome high-frequency
Finish Cabinet: Black or white paint
Grille: Black or white cloth
Dispersion Description: Dipole mode: horizontal figure of eight
Effective null zone ▒30║ (250Hz – 15kHz)
Monopole mode: within 2dB of reference response
Horizontal: over 40║ arc
Vertical: over 10║ arc
Harmonic Distortion 2nd and 3rd harmonics (90dB, 1m)
<1%110Hz – 20kHz
Crossover Frequency 250Hz (dipole mode)
4kHz (monopole mode)
Max. Recommended Cable Impedance 0.1Ω

Bowers & Wilkins 2002