Subwoofer Placement - Definitive Technology ProSub 60 Owner's Manual

Subwoofer Placement

Your Definitive Technology subwoofer has been designed to operate
at frequencies generally below 150 Hz. Because low-frequency informa-
tion in this range essentially is non-directional, your subwoofer can be
located anywhere in your listening room that is most convenient. Also,
the continuously variable low pass filter operates at a very fast roll-off,
ensuring great performance wherever you place your subwoofer. There
are, however, some general rules that you should bear in mind when
locating your subwoofer:
1. For maximum output the subwoofer should be placed in a corner or
against the wall, leaving roughly 2"-4" clearance between the subwoofer
and the wall(s).
2. Corner placement will increase the subwoofer's efficiency, which in
turn will increase your system's maximum output and improve the
dynamic capability of the subwoofer.
3. While one Definitive Technology subwoofer will always sound great,
the use of two subwoofers will definitely enhance your system's perfor-
mance by providing a smoother and more consistent response pattern.
Here, it is recommended that you locate the subwoofers on the same side
of the room as the main speaker of the same channel.
4. Always remember that frequency response and output level are great-
ly influenced by the subwoofer's placement. A movement of even a foot
or two can dramatically change your system's response characteristics.
You should experiment with placement in your particular listening room
in order to achieve the highest performance from your subwoofer.
5. Your subwoofer contains a powerful amplifier inside its cabinetry.
When placing the subwoofer into a built-in cabinet, please be sure it
receives a clear flow of cooling air. If your subwoofer is to be located in
a closed-back cabinet, be sure to put some ventilation holes in the cabi-
net back behind the subwoofer's back panel.
6. Since the subwoofer has some output from the rear, if you put the
subwoofer in a cabinet, leave 2"-4" around the outside of the subwoofer
for the sound from the rear to get out.
7. When using the ProSub 60 with Definitive ProMonitors, consult
the ProMonitor instruction manual for other placement tips.
4