Polk Audio 107GXR10, 107GXR12 Owner's Manual

GXR Series

Subwoofers

KITACH YOUR RECEIPT

HERE AND FILE FOR

FUTURE REFERENCE

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Contact Poik Customer Serwce: 800-377-7655 poikcs@poikaud~o.com

BRING ON THE NOIZE!

Please inspect each loudspeaker carefully. Notify your Polk Audio 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-GXR SUB ENCLOSURE 101

To get the best performance from your GXR 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.

You can build your own box, buy a pre-built box or a box kit, or have your Polk Audio dealer design
and build a custom sub enclosure for you. Your GXR Subwoofers were designed to work well in a wide
variety of enclosure sizes and configurations.

If you choose to build your own enclosure, be sure to build it well. Make certain it’s properly sealed

and airtight for maximum bass performance.

RECOMMENDED QUICK FIT ENCLOSURES

GXR106.65 to 1.0 cu. ft. sealed

GM12& .85 to 1.25 cu. ft. sealed

For more iqformati0.n about enclose

conf~~ons

log on t0

http:/lwww.polkaudio.co~/car/toolbox/subboxplans/
or call Polk Audio’s Customer Service Department

for a FAXback Sub Enclosure info sheet.

Polk Audio Custom& Service is available from 9am-6pm. EST, Monday through
Friday, at 800-377-7655 (US & Can only, outside the US please call 410-358-3600).
Please do not hesitate to call us if you have questions about your speaker system.

We love this stuff.

For more Info and accessones, vwt www.polkaudncom

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WIRING DIAGRAMS FOR GXRI 044Q AND
GXRI 244R

Please make certain that your amplifier is rated to carry the specified load.

Single 4L1 wiring

BREAK IT IN.

El

AMP

With speakers wired in parallel:
Two 4R speakers will present a 2R load.
Make sure that your amplifier us 2R stable when
configured in the birdge mode. Consult your amplifier
owners manual before wiring in this configuration

GXR Subwoofers will achieve even greater perfomrance once they are thoroughly broken-in.
To break in your new GXR Subs, play 20 to 30 hours of music at moderate levels.

GET MORE INFORMATION ONLINE AT POLK UNIVERSITY:

http://vvww.polkaudio.com/car/faqad/index.php

AMPLIFIER POWER REQUIREMENTS FOR GXR SUBWOOFERS

Your Subwoofers will work well with a variety of electronic components. As little as 50 watts per channel
will deliver adequate listening levels in most cars. If you have a noisy car or intend to play your system

at loud listening levels, more power is necessary to achieve the best performance. More power is always
better, Consult your Polk Audio dealer for specific recommendations.

OPTIMAL CROSSOVER SETTING

We recommend using an active crossover with a 12 to 18dB per octave low pass filter slope, and
setting it to an initial setting of SO to 90Hz as a good starting point, This is an optimal crossover
setting on most vehicles.

INVERTING PHASE

Depending on the placement of your subwoofer enclosure and associated components, it may be
necessary to invert the phase of one or another of your system’s connections in order to gain better
subwoofer/mid-range blending. Inverting the phase simply means switching the positive connections

with the negative connections at the amplifier. If you choose to do this, invert the phase of only one

set of speakels (either your mains, or your subs, never both).

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Contact Polk Customer Service. 800-377-7655 [e-mail]