Meridian Audio 568 - Manual (Page 81)

Configuring the digital surround processor without a computer
74
This section explains how to use Sine/Sub mode to adjust the
subwoofer crossover frequency to suit the subwoofers in your
system, and use a sinewave test signal to check for room
resonances.
To turn on Sine/Sub mode
● Put the digital surround processor into standby by pressing
Off (front panel or remote).
● Press and hold the Mute key on the front panel for at least
five seconds.
The display shows:
Sine/Sub On
The 568 will then return to standby with Sine/Sub mode turned
on.
Sine/Sub mode adds two extra options to the DSP parameter
menus: Sine and Xover.
To turn off Sine/Sub mode
● Repeat the above procedure until
the display shows:
Sine/Sub Off
To adjust the subwoofer crossover
frequency
The 568 allows the crossover frequency for any subwoofers
which you have to be adjusted between 30 and 120Hz. The
crossover can be set independently for Music, Logic, and 5.1
Movie presets. The default is the THX standard of 80Hz.
● Turn on Sine/Sub mode, as described above.
● Press < or > (remote) until the display shows the current
crossover frequency.
For example:
Xover 80Hz
● Press A or V (remote) to set the crossover frequency.
For THX loudspeaker systems you should not adjust these
settings – they should be left at 80Hz. 80Hz is also the
recommended setting for all movie listening. You may prefer,
however, to lower the crossover frequency for music if your main
speakers have good bass handling down to, say, 50Hz.
Setting up subwoofers