Magnat Audio Quantum 630A - Manual (Page 7)

7
GB
LEVEL CONTROL (7)
This control is used to set the bass volume according to your preferences. Proceed as follows:
1. Set the bass control of your amplifier into its centre (linear) position.
2.
Important: Set the level control to its left stop (lowest volume).
3. Now, play back some music and set the volume control of the amplifier to the desired level.
4. Set the subwoofer level control to the desired bass level.
CROSS-OVER FREQUENCY CONTROL (8)
Used to set the upper limit of the subwoofer operating range. The cross-over frequency should be set to
100 to 150 Hz when the system is used in combination with shelf loudspeakers or 50 to 100 Hz when
used with stand loudspeakers.
The cross-over frequency control should be set to the maximum value (200 Hz) when AV
receivers/amplifiers are used. The cross-over frequency between the subwoofer and loudspeaker is then
set in the receiver's/amplifier's set-up. Please refer to your receiver's/amplifier's operating instructions
here.
PHASE SWITCH (9)
In normal use the phase switch should be set to 0°. However, in rare cases it may be advantageous to
set the phase to 180° (e.g. if the subwoofer is far away from the front satellites or in the event of
unfavourable acoustics in the room). Generally speaking: the setting where the lower base tone area has
a fuller sound is the correct one.
FUSE (10)
Only use a fuse with the parameters indicated inside the triangle next to the fuse holder, on the rear of
the amplifier.
IMPORTANT SAFETY NOTICE
Never subject the subwoofer to dripping or splashing water. Do not place any flower vases or other filled
recipients on top of the subwoofer.
The distance between the active subwoofer enclosure and the walls of the room or other objects (e. g.
furniture, shelf units) may not be less than 5 cm on any side.
The aluminium plate and cooling fins of the amplifier at the rear of the active subwoofer serve to cool the
built-in amplifier; for this reason, they must also be at least 5 cm away from all objects and must not be
covered (e.g. by a curtain).
The bass reflex opening(s) on the active subwoofer must not be covered (e. g. by curtains, etc.) in order
to guarantee adequate ventilation of the amplifier.
The active subwoofer may not be used in very humid rooms.
Please do not place any items with naked flames (e.g. candles) on the active subwoofer.
Please do not touch or connect the mains cable when your hands are damp. Keep the mains cable away
from heaters. Never place heavy items on the mains cable. The mains cable should always be freely
accessible.