Maintenance Of Loudspeakers - Quadral algemeen Bedienungsanleitung

As far as possible, leave the bass control of the amplifier's tone control facility set in the
"neutral" position, otherwise unnecessarily strong bass signals will be delivered to the satellite
speakers; whilst the satellites would then be subject to a heavy load from such bass signals,
they are not be able to reproduce them in the form of low-frequency sound. As described in
the above, set the bass volume to the level you require by adjusting the subwoofer's volume
via the amplifier's bass management facility.

Maintenance of loudspeakers

The best way to clean your quadral loudspeakers is with a dry and soft duster. Please mop
the aluminium cabinets in longitudinal direction with a moist duster. Never use solvents!
You should clean the loudspeaker systems (bass, midranges, etc.) only by an intense soiling
(slight quantity of dust is acoustically insignificant) exclusively with a dry, soft duster and just
with a little pressure because you can damage them (to dent the membranes).
If the silver front frames are soiled please use a dry cleaning foam ( i. e. Centralin – Spray),
spray the soiled spot, allow it to react and vacuum it with a Hoover.
Don´t brush off the black front frames, just dust off them or draw the dirt carefully off with a
wide adhesive tape. Never clean them moist!
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Fault Reason
1) No sound a) Cables wrongly connected
(see also )
b) System not switched on
c) Amplifier faulty
2) The system sounds bass-less a) Wrong polarity of one
and thin even when the bass channel into the subwoofer polarity of one connection of
control on the amplifier is
turned up
b) Bass management on
surround amp incorrectly
configured
c) Subwoofer not functioning
d) The sound projection is
being impeded
3) The system sounds distant a) Wrong polarity of a satellite a) Check cable connections/change
and instruments and voices cable connection
are hard to locate
4) System lacks treble a) The room has unlively
acoustics and the speakers away from the walls
are located in room corners (approx. 0 cm clearance)
b) Bass control set too high on b) Set the bass control to neutral
the amplifier
5) System sounds distorted a) Volume set too high
b) See ()
c) System is faulty
) Only one speaker working a) Cables connected up wrongly a) Check cable connections
b) Speaker or electronics faulty b) Exchange right and left speaker.
) The subwoofer often switches The subwoofer´s settings
require adjustment
) The fundamental tone Unfavourable setting of the
(e.g. male voices) is too subwoofer is causing
thin despite correct cable suppression in the fundamental subwoofer till tone sounds fuller
connections tone
Remedy
a) Check that the cables have been
connected as specified in the instruc-
tions
b) Switch on the system and adjust the
volume to approx.  o'clock position
c) Check electronics for possible
defect
a) Check cable connections/change
amplifier at the subwoofer terminal
(exchange red and black)
b) Configure the bass management as
described in these operating instruc-
tions
c) Switch on the subwoofer and check
the cables
d) Mount the feet as supplied, or remove
the objects that are impeding the
sound projection
polarity of one satellite connection
on subwoofer terminal panel
(exchange red and black)
a) Place woofer and satellites further
(central) position
a) Turn volume down
b) See ()
c) Please contact your dealer or quadral
If the mute speaker is now on the
other side then it is faulty, otherwise
it is the amplifier
a) Reduce the volume level on the
subwoofer (set to 10 o´clock position)
and turn up the subwoofer´s volume
via the amplifier´s bass manage-
ment facility
b) Connect up the subwoofer by
means of its High Level inputs
(s. 1 st connection option)
a) Change the setting of the frequency
and/or phase control on the
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