Meridian 561 User Manual page 97

To specify the type of subwoofer
For each subwoofer in the system you can specify the
subwoofer filtering. The options are explained in the following
table:
Option
Narrow
Wide
To set peak-level limiting
The Max SPL or Bass limit parameter allows you to set up
peak-level limiting for bass signals, and the setting applies to all
the discrete digital DSP presets.
If your loudspeaker layout includes one or more subwoofers the
parameter is named Max SPL, and it sets the peak-level limit for
the LFE channel.
90
Description
The digital surround controller provides
a low-pass cut off; the subwoofer's
crossover should be bypassed. This is
the recommended option.
The subwoofer includes a crossover.
If your loudspeaker layout contains no subwoofer the parameter
is named Bass limit, and it sets the peak-level limit of the bass
signal added to the main loudspeakers. For loudspeaker layouts
using Meridian DSP loudspeakers as the main left and right, or
centre speakers, the Bass limit value is fixed at -11dBFS and
you cannot adjust it.
To complete the speaker setup
You have now completed the first stage of setting up the 561,
and you should save the changes you have made by choosing
Save from the File menu.
You can ignore the Distances, Crossovers, Precision, and
Phase/Gain pages of settings for the moment; these will allow
you to check the values you have set up when you calibrate
the 561.