Magna QUANTUM 731A Mode D'emploi page 9

Line inputs (6)
Please refer to fig. 3 for connecting to low-level outputs on a receiver/amplifier (stereo mode). The two
channels are added to each other and are output by the subwoofer.
High-level inputs (7)
For connection to the high-level (speaker) outputs of the receiver/amplifier, refer to fig. 4.
Level control (8)
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 (9)
Used to set the upper limit of the subwoofer operating range. The cross-over frequency should be set
to 40 to 180 Hz when the system is used in combination with shelf loudspeakers or 50 to 100 Hz when
used with stand loudspeakers.
Phase switch (10)
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 loudspeakers 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 (11)
Only use a fuse with the parameters indicated inside the triangle next to the fuse holder, on the rear of
the amplifier.
SPECIFICATIONS
Configuration:
Fitted with
Output power RMS/Max.:
Frequency range:
Cross-over frequency:
Dimensions (WxHxD):
Accessories:
Subject to technical change.
bass reflex, downfire
30 cm long-stroke driver
180 / 360 watts
18 – 200 Hz
40 – 180 Hz, adjustable
340 x 568 x 475 mm
mains cable
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