Description of operating controls and connecting terminals Page 13 of 20
1 SUBWOOFER LEVEL
The subwoofer volume control should be adjusted to match the main speaker volume of your hifi or home cinema
system. As a general rule, subwoofer performance should not dominate the sound. Excessive bass leads to a
smeared soundstage and can result in unpleasant resonances at certain frequencies.
2 LOW-PASS CROSSOVER
Used to adjust the frequency at which the subwoofer crosses over. Signals above this crossover frequency are
gradually rolled off so they do not interfere with the main speakers. The adjustment of the crossover frequency will
depend on the size and frequency response of the main loudspeakers.
Loudspeaker configuration Crossover frequency
Home cinema set (5.1 …) with LFE channel 120 - 160 Hz
Hifi/Stereo system with very small loudspeakers 80 - 120 Hz
Stereo system with satellites and subwoofer (2.1) 80 - 120 Hz
Hifi/Stereo system with medium-sized bookshelf
speakers, smaller floor standing loudspeakers
(compatible with most ELAC loudspeakers)
50 - 80 Hz
3 POWER
Provided on the rear of the subwoofer, there are three positions available:
• AUTO Normal position. The ELAC subwoofer is switched to standby mode (indicator light LED glows red).
A sensor controls the inputs. If the appropriate bass signal is present, the power output stage is switched
on. Within tenth of a second, the subwoofer is ready for operation (indicator light LED glows green). The
subwoofer switches into standby mode again after a signal pause of more than 15 minutes (indicator light
LED glows red).
Note: If the automatic turn-on operation only responds to full volume, please increase the bass/LFE level
of your surround receiver and decrease the subwoofer level about the same amount. This way, there will
not be any changes in acoustical bass level and the subwoofer will be turned on automatically at a lower
volume.
• ON The subwoofer is operating continuously (indicator light LED glows green).
• OFF The subwoofer is held in standby mode continuously (indicator light LED glows red).
To switch off the subwoofer completely, please switch the MODE control to OFF. A second later, the
Power switch can be turned off without any noise.
4 LED
ON / Standby LED. Glows green when device is switched on; glows red when device is in standby mode.
5 PHASE
The acoustical phase relative to the input phase may be adjusted by means of the phase control knob. The range is 0° (in
phase) to 180° (out of phase). The optimum adjustment should be determined within the listening test. While going through
the whole range of the phase control adjuster, the adjustment with the highest bass output at the listening place should be
kept.
6 LINE LEVEL IN
Input jack for connecting the ELAC SUB 2030 to the subwoofer output ‘BASS / SUB OUT / LFE’ of a surround amplifier / sur-
round receiver or to the ’PRE OUT’ of a stereo amplifier. For this connection, a commercially available cable with RCA con-
nectors can be used. Do not plug or unplug this cable while the subwoofer is in operation.
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