Filter
Top Products
Owners Manual 25
Volume (GAIN)
Volume (GAIN)
With the GAIN control you can adjust the relative volume level of the subwoofer to the
main speakers of the system:
Play the same track a couple of times, adjusting the level so that the instrument sounds
homogenous across its range.
If you find that at certain specific bass tones the response is either too loud (bloated
sound) or soft (thin sound), it may be that you have to experiment further with the location
of the subwoofer and/or the cross-over settings.
Refer to the sections “Positioning the subwoofer” on page 20 and “Cut-off frequencies”
on page 25 for further information.
Note: When using multiple subwoofers, ensure that the settings for cut-off frequency,
phase and LF extension are identical. Use the LFE and Slave mode options to
ensure that all subwoofers operate on the same settings (refer to chapter “Multiple
subwoofer connections” on page 13).
Different acoustic loadings can be found within a listening room. Thus, balancing
out modes may require different power levels.
Cut-off frequencies
Matching the frequency responses of subwoofer and speakers has an important impact
on the overall sound quality, when integrating a subwoofer into a audio-video-system. In
general a large, floor-standing speaker still has significant output in the deeper bass
range, whereas a very small speaker will not be able to reproduce deep bass at all. In the
first case a bump in the overlapping area will cause a louder or even bloated sound while
in the second case an acoustic hole will be experienced.
The following figures visualize the possible results (please note that all curves are for
illustration purposes and do not show exact filter characteristics).
ON AUTO
GAINPOWER PHASE
Min Max
0° 180°
Level
Frequency/Hz
60 Hz
80 Hz
100 Hz
Flat
50 Hz
100 Hz
150 Hz
50 100 150