Heco CELAN SUB 30A Manual Del Usuario página 11

High-level inputs (8)
For connecting to high-level (speaker) outputs on a receiver/amplifier. See Fig. 2 for
connecting to a stereo am-plifier and Fig. 3 for connecting to an AV receiver.
Level control (9)
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.
Warning: when connecting to an AV receiver's subwoofer output, the subwoofer level
should be set to 0 dB in the receiver's set-up.
Cross-over frequency control (10)
Used to set the upper limit of the subwoofer operating range. The cross-over
frequency should be set to approxi-mately 100 to 150 Hz when the system is used
in combination with shelf loudspeakers and to 50 to 100 Hz with stand loudspeakers.
Phase control (11)
In normal use the phase control should be set to 0°. However, in rare cases it may
be advantageous to vary the phase to between 0 and 180° (e.g. if the subwoofer is
far away from the front satellites or in the event of unfa-vourable acoustics in the
room). Generally speaking: the setting where the lower base tone area has a more
natu-ral sound is the correct one.
Fuse (12)
Only use a fuse with the parameters indicated next to the fuse holder on the rear of
the amplifier.
GB
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