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Old 02-06-2008, 07:13 PM   #1
Status: AJ Member
Join Date: Oct 2007
Posts: 65

Default 703

The 703 is a full 3-way design. Twin bass drivers, with stiff paper/Kevlar« cones further strengthened by B&W's unique girder-like mushroom construction, work in parallel in a Flowport-tuned cavity to handle all the bass frequencies.

Freed from the need to produce any bass signals, the dedicated FST Surround less midrange driver operates in its own isolated cavity within the cabinet. The combination of its woven Kevlar« cone and mechanically matched outer suspension enables this driver to portray the finest nuances in the signal, giving instruments their correct timbral character and positioning them accurately on the sound stage.

The tube-loaded tweeter is freely mounted on top of the cabinet to give a sense of airiness and to reduce the listeners' awareness of the speakers as discrete sound sources. Technical Features: Free-mounted Nautilus? tweeter Kevlar« brand fibre cone FST? midrange Paper/Kevlar« cone bass Flowport? Description: 3-way vented-box system Drive units 2x °165mm (6.5 in) Paper/Kevlar« cone bass 1x °160mm (6 in) woven Kevlar« cone FST? midrange 1x °25mm (1 in) alloy dome high-frequency Frequency range -6dB at 30Hz and 50kHz Frequency response 38Hz ? 25kHz ▒3dB on reference axis Dispersion Within 2dB of reference response Horizontal: over 40║ arc Vertical: over 10║ arc Sensitivity 90dB spl (2.83V, 1m) Harmonic Distortion 2nd and 3rd harmonics (90dB, 1m) less than 1% 80Hz ? 20kHz less than 0.5% 150Hz ? 20kHz Nominal Impedance 8? (minimum 3.0?) crossover frequency 350Hz, 4kHz Recommended amplifier Power 50W ? 200W into 8? on unclipped programme Max. Recommended Cable Impedance 0.1? Dimensions Height: 1007mm (39.7 in) Width: 232mm (9.1 in) Depth: 357mm (14.1 in) Net weight 27 kg (60 lb) Finishes Cabinet - Real Wood Veneers Black Ash Cherry Maple Rosenut Walnut Grille: Black cloth
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