Infinity PS212 Owner's Manual page 3

Figure 1. This example shows the subwoofer positioned behind th.e
right-channel satellite speaker to re-create the actual location of
bass instruments in an orchestra and/or add impact to movie
spundtracks.
SUB
INTRODUCTION
Infinity' PS212 Powered Subwoofer
The Infinity PS212 powered subwoofer continues Infinity's longstanding
commitment to accurate sound reproduction. Our proprietary technology
and engineering resources work together to deliver uncompromised
low-frequency performance in any stereo or multichannel home
theater system.
Unpacking the Subwoofer
If you suspect damage from transit, report it immediately to your dealer.
Keep the shipping carton and packing materials for future use.
PLACEMENT
Since the installation of asubwoofer can be somewhat more complicated
than installing full-range speakers, it is essential that you read this
section very carefully prior to connecting the subwoofer to your system.
Should you have questions re!ating to your installation, it is advisable
to call your dealer or visit www.infinitysystems.com for assistance.
The performance of the subwoofer is directly related to .its placement
in the listening room and how you align the subwoofer with its satellite
speakers. Setting the volume of the subwoofer in relationship to the left
and right speakers is also of critical importance because it is essential
that the subwoofer integrate smoothly with the entire system. Setting the
subwoofer's volume level too high will result in an overpowering, boomy
bass. Setting the volume level too low will negate the benefits of
the subwoofer.
Here are several additional facts on installation that may prove useful.
It is generally believed by most audio authorities that low frequencies
(below. 125Hz) are nondirectional and, therefore, placement of asub-
woofer within any listening room is not critical. While in theory it is true
that the larger wavelengths of extremely low frequencies are basically
nondirectional, the fact is that, when installing a subwoofer within the
limited confines of a room, reflections, standing waves and absorptions
generated within the room will strongly influence the performance of any
subwoofer system. As a result, specific location of thesubwoofer becomes
important, and we strongly recommend that you experiment with placement
. before choosing a final location.
Placement will depend upon your room and the amount and
q~ality
of bass
required (for example, whether or not your room permits placement of the
subwoofer near either satellite). Be su're to leave a minimum of six inches
between the wall and the port on the subwoofer.
o
o
O~~RIGHT­
CHANNEL
SPEAKER
PRIMARY
~--++----+--
LISTENING
AREA
PS212 (120V)
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