Apex Digital dBZ-48d, User Manual, Page: 19 / 28

1
Small bar-type venue with multiple areas, featuring both live and recorded music
This application uses the dBZ-48d as a 3-way zoner, with two
outputs being used to derive LF and HF feeds for a two-way
speaker system in one area. The set-up would be suitable for
a small venue which features live music in a main area, while a
CD player, music server, TV sound or similar is made available
at different levels in other rooms.
The stereo output of the live music mixing console is connected
to In A, while the stereo recorded music feed (probably via a
switcher of some kind) is connected to In B.
Out 1 feeds the live area sound system, with Out 1 Mix A being
used to control the ultimate sound level. Out 1 Mix B is set to
minimum.
Out 2 and Out 3 feed the sound system in a secondary area
(bar or restaurant, e.g.), and it is assumed that a speaker
system with a separate subwoofer is being used.
Out 3 feeds the subwoofer, and the hi-pass filters and lo-pass
filters are set to 25 Hz and 125 Hz respectively, thus allowing
only bass frequencies through to the LF unit. Out 3 is also set
to mono as stereo imaging can be dispensed with for LF (and
commonly, only one unit is used). Out 2’s hi-pass filter is set to
reject frequencies below 100 Hz, and is connected to the main
speaker system in the area.
Out 2 Mix A and Out 3 Mix A are set to minimum as only
recorded music is required at this moment in this area.
Out 2 Mix B and Out 3 Mix B are used to control the overall in
the area independently of other outputs.
At any time, the user may decide to feed the live music to this
area by changing the Out mix of A and B accordingly.
Out feeds TV sound or recorded music to a quieter area, which
might have a plasma/LCD screen or projector, for example.
Mono is used, this being adequate for TV, and the hi-pass and
lo-pass filters are set at 80 Hz and 16 kHz respectively, to reject
any extreme frequencies, as it is likely that the speaker system
in such a room would not be able to handle them.
Out Mix A is set to minimum as live music is not required in
this room, and Out Mix B is used to set the volume.
Applications