Hooking Up Your Subwoofer: 5.1 Surround - KRK Systems 12sHO Guide D'utilisation

pass filter to the 80-Hz position (or another frequency if you are using external high-pass filters for the
near-field speakers).
Your system should now be properly aligned for phase, level and spectral response.

Hooking Up Your Subwoofer: 5.1 Surround

This is a bit more involved than a stereo hook up since there are now six speakers involved— as well as
something called Bass Management (see the Bass Management Theory section). Notice in the figure
below that for professional use a separate 6-channel level control box is required between the mix-down
deck and the monitor speakers. This is because few small format mixing consoles have provisions to
switch and level-manage a 6-channel audio signal. The simplest and perhaps best way to accomplish this
is to use an external, 5.1 level controller. It is placed between the outputs of the mix-down deck and the
monitor speakers, allowing it to control the playback level while the mix-down deck receives full-level
recording signal.
16