QUAD Classic Series ESL - Manual (Page 11)

11
Maximum Power Output
Sensitivity
Impedance
Maximum continuous input voltage
Programme peak ( 20 Hz to 20 kHz )
For undistorted output
Permitted peak input
Directivity index
Axis band limits
( low level )
AC Input
( double insulated )
Dimensions ( H x W x D )
(including 185mm base)
Weight
2N/m2 at 2m on axis
1.5u bar per volt referred to 1m (86dB/2.83V RMS)
8 ohm nominal
10V
40V
55V
125Hz . . . . . .5.0dB
500Hz . . . . . .6.4dB
1kHz . . . . . . . .7.2dB
8kHz . . . . . . .10.6dB
-6dB at 35Hz 3rd order
-6dB > 20kHz
220-240V or 110-120V
See rating details on base of unit
940mm x 670mm x 315mm
(including 185mm base)
20.5kg net
Vintage & Nouveau
Both our international award-winning ESL
loudspeakers are now available for the first time in a
choice of colours and finishes. Whilst for some
audiophiles such details are of trifling importance,
Quad recognise that for many, the ESL needs to vanish
into it's surroundings visually as well as audibly –
whether these surroundings be a stately home or
docklands apartment.
The original black-on-black finish is now
complemented with the ‘Vintage’ and the ‘Nouveau’
finishes. Sonically, these are identical to the standard
model, but aesthetically, they offer more variety. The
Vintage models include a wooden base-plate, as well as
the wooden top-cap, reminiscent of the older ESL-63
and a woven – yet acoustically transparent sock as an
alternative to black. The Nouveau model has a brushed
metal top-cap and co-ordinated base to complement
the light blue colour of the cloth.
Specifications
Model ESL 988 ESL 989
2N/m2 at 2m on axis
1.5u bar per volt referred to 1m (86dB/2.83V RMS)
8 ohm nominal
10V
40V
55V
125Hz . . . . . .5.0dB
500Hz . . . . . .6.4dB
1kHz . . . . . . . .7.2dB
8kHz . . . . . . .10.6dB
-6dB at 35Hz 3rd order
-6dB > 20kHz
220-240V or 110-120V
See rating details on base of unit
1335mm x 670mm x 315mm
(including 185mm base)
25.3kg net
Vintage Nouveau