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safe limits of operation
Polk species the recommended amplication range for each of its passive
(non-amplied) loudspeakers. Typically that specication will be expressed as
a range of power such as 20-200 W (per channel). It is important to understand
what those numbers mean when choosing a receiver or amplier for your Polk
loudspeakers. The lower number indicates the lowest continuous rated power
that will yield acceptable performance in a typical listening environment. The
higher number indicates the highest per channel power that should be used
with your Polk speakers. That number should not be confused with a “Power
Handling” specication and it does not imply that the speaker will safely handle
that full amount of power on a long-term basis. We specify a wide range of
power ratings because not all electronics manufacturers use the same method
for rating power. In fact, high quality lower-rated ampliers sound better and
play louder than low quality units with a higher power rating.
Loudspeakers can be damaged when an amplier, regardless of its wattage,
is made to play at higher listening levels than its power can clearly produce.
Operation at this level can result in very high levels of audible distortion
originating in the amplier, which can add a harsh, gritty sound to your listening
material. If you hear distortion—turn the volume down or risk damaging
your speakers. You can damage just about any speaker, regardless of power
rating, if you drive an amplier to or beyond the point of distortion.
bring the noize!
Please inspect each loudspeaker carefully. Notify your Polk dealer
if you notice any damage or missing items. Keep the carton and packing
material. They will do the best job of protecting your speakers if they need
to be transported.
building a home for your subwoofer—
DXi sub enclosure 101
To get the best performance from your DXi Subwoofers, you must use a
Subwoofer Enclosure. Don’t bother using them in “free air,” with no sub box,
just popped into the back deck of your car. You will not get very good
performance from your subwoofers if you do this. They are not designed
to be installed innite bafe or “free air.” This will void the warranty.
You can build your own box, buy a pre-built box or a box kit, or have your Polk
dealer design and build a custom sub enclosure for you. Your DXi Subwoofers
were designed to work well in a wide variety of enclosure sizes
and congurations.