25
Headphone Fit is poor/bass
response is weak
Check the headband for any deformation by fully retracting
(shortening) the metal inner bands. If the junctions at each end
of the headband are tight without any large uneven gaps and
the arc of the headband is smooth and continuous to each ear
cup the inner bands are correct. If this is not the case, carefully
push the ear cup assemblies inward until the gaps are
minimised and even, and the headband arc becomes
continuous and properly oriented.
Distortion is present on some
source material
Check the volume control setting and also the presence of the
clipping indicator on the front display. It is possible to overdrive
the electrostatic panels at high volume settings with
excessively bass-heavy source material or material with original
recording levels set higher than normal. When listening to
these types of source material it may be necessary to reduce
the volume setting slightly.
Output level too low when using
analog inputs
Check that the correct input level is selected for the type of
source device being used.
The unbalanced RCA inputs should be
driven by source devices with up to 2.1 V
rms
maximum output
with the unbalanced input level switch on the back panel at
the LOW switch position, and 5V
rms
on the HIGH position.
The balanced XLR inputs should be driven by source devices
with up to 10dBu maximum output with the balanced input
level switch on the back panel set to the LOW switch position
and 18dBu on the HIGH position.
If a low level source is connected to either balanced or
unbalanced inputs when the input level switch is set to HIGH,
there may not be enough gain available. The level switch should
be set to LOW when low level source devices are used for best
sound quality.
Output is distorted when using the
analog inputs
Check that the correct input is selected for the type of source
device being used and that the input level does not exceed the
maximum levels allowed at the selected input level switch
position.
The unbalanced RCA inputs should be driven by source
devices with up to 2.1 V
rms
maximum output with the
unbalanced input level switch on the back panel at the LOW
switch position, and 5V
rms
on the HIGH position.
The balanced XLR inputs should be driven by source devices
with up to 10dBu maximum output with the balanced input
level switch on the back panel set to the LOW switch position
and 18dBu on the HIGH position.
Higher maximum output source devices can be used for these
inputs, but levels will need to be reduced to avoid over-driving
the analog inputs. If distortion is heard when driving the correct
input, try reducing the output level from the source device until
the distortion subsides or the clipping light goes off. This should
be checked on the most dynamic, high level material one
expects to play from the source device.
