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www.bowers-wilkins.com
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Technical features
Description
Drive units
Frequency range
Frequency response
Dispersion
Sensitivity
Harmonic distortion
Nominal impedance
Crossover frequency
Recommended amplifier power
Max. recommended cable
impedance
Dimensions
Net Weight
Finishes
Nautilus
™
tube loaded aluminium
dome tweeter
Kevlar
®
brand fibre cone bass/midrange
Flowport
™
2-way vented-box system
1x ø25mm (1 in) aluminium dome high-
frequency
1x ø130mm (5 in) woven Kevlar
®
cone bass /
midrange
-6dB at 45Hz and 50kHz
55Hz - 22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
84dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 110Hz - 22kHz
<0.5% 150Hz - 20kHz
8
V (minimum 5.1V)
4kHz
25W - 100W into 8
V on unclipped programme
0.1
V
Height: 265mm (10.5 in)
Width: 170mm (6.7 in)
Depth: 284mm (11.2 in)
4.9kg (10.8 lb)
Black Ash Vinyl
Light Oak Vinyl
Red Cherry Vinyl
686
Nautilus
™
tube loaded aluminium
dome tweeter
Kevlar
®
brand fibre cone bass/midrange
Flowport
™
Magnetic shielding
2-way vented-box system
1x ø25mm (1 in) aluminium dome high-
frequency
2x ø130mm (5 in) woven Kevlar
®
cone bass /
midrange
-6dB at 45Hz and 50kHz
55Hz - 22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 20º arc
Vertical: over 60º arc
85dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 100Hz - 22kHz
<0.5% 150Hz - 20kHz
8
V (minimum 4.3V)
4kHz
25W - 120W into 8
V on unclipped programme
0.1
V
Height: 170mm (6.7 in)
Width: 438mm (17.3 in)
Depth: 308mm (12.2 in)
9.1kg (20.1 lb)
Black Ash Vinyl
Light Oak Vinyl
Red Cherry Vinyl
HTM62
Nautilus
™
tube loaded aluminium
dome tweeter
Kevlar
®
brand fibre cone FST
™
midrange
Kevlar
®
brand fibre cone bass
Flowport
™
Magnetic shielding
3-way vented-box system
1 x ø25mm (1 in) aluminium dome high-
frequency
1 x ø150mm (6 in) woven Kevlar
®
cone FST
™
midrange
1 x ø165mm (6.5 in) woven Kevlar
®
cone bass
-6dB at 30Hz and 50kHz
38Hz - 22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 20º arc
Vertical: over 60º arc
90dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 90Hz - 22kHz
<0.5% 120Hz - 20kHz
8
V (minimum 3.0V)
350Hz, 4kHz
30W - 150W into 8
V on unclipped programme
0.1
V
Height: 198mm ( 7.8 in)
Width: 545mm ( 21.5 in)
Depth: 339mm ( 13.4 in)
15.4kg (34 lb)
Black Ash Vinyl
Light Oak Vinyl
Red Cherry Vinyl
HTM61
Main
Nautilus
™
tube loaded aluminium
dome tweeter
Kevlar
®
brand fibre cone FST
™
midrange
Aluminium/Paper/Kevlar
®
cone bass driver
Flowport
™
3-way vented-box system
1x ø25mm (1 in) aluminium dome high-
frequency
1x ø150mm (6 in) woven Kevlar
®
cone
FST
™
midrange
2x ø165mm (6.5 in)
Aluminium/paper/Kevlar
®
cone bass
-6dB at 30Hz and 50kHz
38Hz - 22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
90dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 90Hz - 22kHz
<0.5% 120Hz - 20kHz
8V (minimum 3.0V)
350Hz, 4kHz
25W - 200W into 8V on unclipped programme
0.1V
Height: 985mm (38.8 in)
(not including plinth or feet)
Width: 198mm (7.8 in)
Depth: 340mm (13.4 in)
26kg (57.3 lb)
Black Ash Vinyl
Light Oak Vinyl
Red Cherry Vinyl
683
Technical features
Description
Drive units
Frequency range
Frequency response
Dispersion
Sensitivity
Harmonic distortion
Nominal impedance
Crossover frequency
Recommended amplifier power
Max. recommended cable
impedance
Dimensions
Net Weight
Finishes
Nautilus
™
tube loaded aluminium
dome tweeter
Kevlar
®
brand fibre cone bass/midrange
Kevlar
®
brand cone bass driver
Flowport
™
2½-way vented-box system
1x ø25mm (1 in) aluminium dome high-
frequency
1x ø165mm (6.5in) woven Kevlar
®
cone bass /
midrange
1x ø165mm (6.5in) woven Kevlar
®
cone bass
-6dB at 34Hz and 50kHz
44Hz–22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 60° arc
Vertical: over 10° arc
90dB spl (2.83V, 1m)
2nd & 3rd harmonics (90dB, 1m)
<1% 90Hz - 22kHz
<0.5% 120Hz - 20kHz
8V (minimum 3.0V)
150Hz, 4kHz
25W–150W into 8V on unclipped programme
0.1V
Height: 910mm (35.8 in)
(not including plinth or feet)
Width: 198mm (7.8 in)
Depth: 300mm (11.8 in)
18.2kg (40.1lb)
Black Ash Vinyl
Light Oak Vinyl
Red Cherry Vinyl
684 685
Nautilus
™
tube loaded aluminium
dome tweeter
Kevlar
®
brand fibre cone bass/midrange
Flowport
™
2-way vented-box system
1x ø25mm (1 in) aluminium dome high-
frequency
1x ø165mm (6.5 in) woven Kevlar
®
cone bass /
midrange
-6dB at 42Hz and 50kHz
49Hz - 22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
88dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 100Hz - 22kHz
<0.5% 150Hz - 20kHz
8V (minimum 3.7V)
4kHz
25W - 100W into 8V on unclipped programme
0.1V
Height: 340mm (13.4 in)
Width: 198mm (7.8 in)
Depth: 331mm (12.3 in)
7.0kg (15.4 lb)
Black Ash Vinyl
Light Oak Vinyl
Red Cherry Vinyl