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EX SERIES II 1 YEAR WARRANTY
Polk Audio, Inc. warrants the original purchaser only that this Polk Audio EX Series II
Product (the Product) will be free from defects in materials and workmanship for a period
of (1) one year from the date of original retail purchase from a Polk Audio Authorized
Dealer. However, this warranty will automatically terminate prior to the expiration of the
(1) one year period if the original retail purchaser sells or otherwise transfers the Product to
any other party. The original retail purchaser shall herein after be referred to as "you." To
allow Polk Audio to offer the best possible warranty service, please fill out the Product
Registration Card(s) and send them to the Factory at the address provided in the
Registration Card within (10) ten days of the date of purchase.
Defective Products must be shipped, together with a proof of purchase, prepaid insured to
the Authorized Polk Audio Dealer from whom you purchased the Product, or to the Factory
at the address given in this booklet. Products must be shipped in the original shipping
container or its equivalent; in any case the risk of loss or damage in transit is to be borne by
you. If, upon examination at the Factory or Polk Audio Authorized Dealer it is determined
that the unit was defective in materials or workmanship at any time during the Warranty
period, Polk Audio or the Polk Audio Dealer will, at its option, repair or replace this Product
at no additional charge, except as set forth below. All replaced parts and Products become
property of Polk Audio. Products replaced or repaired under this Warranty will be returned
to you, within a reasonable time, freight prepaid.
This Warranty does not include service or parts to repair damage caused by accident,
disaster, misuse, abuse, negligence, inadequate packing or shipping procedures,
commercial use, voltage inputs in excess of the rated maximum of the unit, cosmetic
appearance of the cabinetry not directly attributable to defects in materials or
workmanship, or service, repair, or modifications of the Product which has not been
authorized or approved by Polk Audio.
This Warranty is in lieu of all other expressed Warranties. If this Product is defective in
materials and workmanship as warranted above, your sole remedy shall be repair or
replacement as provided above. In no event will Polk Audio, Inc. be liable to you for any
incidental or consequential damages arising out of the use or inability to use the Product,
even if Polk Audio, Inc. or a Polk Audio Dealer has been advised of the possibility of such
damages, or any other claim by any other party. Some states do not allow the exclusion or
limitation of consequential damages, so the above limitation and exclusion may not apply
to you. This Warranty gives you specific legal rights which may vary from state to state.
This warranty applies only to Products purchased in the United States of America, its
possessions, and U.S. and NATO armed forces exchanges and audio clubs. The Warranty
terms and conditions applicable to Products purchased in other countries are available
from the Polk Audio Authorized Distributors in such countries.
EX SERIES II SUBWOOFER SPECIFICATIONS
EX8 EX10 EX12
THIELE/SMALL PARAMETERS
Type subwoofer subwoofer subwoofer
Driver Complement 8" 10" 12"
Nominal Impedance 4ohms 4ohms 4ohms
Frequency response 20-300Hz 20-400Hz 20-500Hz
Fs (Hz) 44.64Hz 32.47Hz 24.47Hz
Re 3.73 ohms 3.34 ohms 3.38 ohms
Le 1.57 mH 1.55 mH 1.40 mH
Qms 11.43 8.27 8.14
Qes 0.57 0.48 0.31
Qts 0.54 0.45 0.30
Vas (cubic feet) 0.66 ft
3
1.59 ft
3
4.72 ft
3
Vas (liters) 18.51L 44.56L 132.02L
Power Handling (watts continuous) 125watts 150watts 150watts
Power Handling (watts peak) 300watts 400watts 400watts
Sensitivity (SPL at 1 watt / 1 meter) 90 dB 92 dB 93 dB
Xmax (inches) 0.177 in. 0.177 in. 0.177 in.
Xmax (millimeters) 4.5 mm 4.5 mm 4.5 mm
Voicecoil Diameter 1.5 in. 2.0 in. 2.0 in.
Mounting depth (inches) top mount 3 7/8" 4 11/16" 5 3/8"
(millimeters) 85 mm 120 mm 135 mm
Mounting depth (inches) bottom mount 4 1/4" 5 1/16" 5 3/4"
(millimeters) 110 mm 130 mm 145 mm
Mounting diameter (inches) 7 1/8" 9 1/16" 10 7/8"
(millimeters) 180 mm 230 mm 276 mm
RECOMMENDED ENCLOSURES
Sealed
Sealed volume(cubic feet) .5 ft
3
.65 ft
3
.95 ft
3
(liters) 14.2 L 18.4 L 26.9 L
Ported
Ported volume(cubic feet) .75 ft
3
1.0 ft
3
1.25 ft
3
(liters) 21.2 L 28.3 L 35.4 L
Port diameter (inches) 3 in. 3 in. 4 in.
(millimeters) 75 mm 75 mm 100 mm
Port length (inches) 10 1/4" 11 1/4" 12 5/16"
(millimeters) 255 mm 280 mm 305 mm
Tuning frequency (Hz) 45Hz 38 Hz 40 Hz
Bandpass
Bandpass total volume (cubic feet) 1.1 ft
3
1.1 ft
3
1.5 ft
3
(liters) 31.1 L 31.1 L 42.4 L
Front chamber volume (cubic feet) .70 ft
3
.50 ft
3
.75 ft
3
(liters) 19.8 L 14.2 L 21.2 L
Back chamber volume (cubic feet) .38 ft
3
.60 ft
3
.72 ft
3
(liters) 10.8 L 17.0 L 20.4 L
Port diameter (inches) 3 in. 3 in. 4 in.
(millimeters) 75 mm 75 mm 100 mm
Port length (inches) 12 3/8" 9 7/8" 19 3/16"
(millimeters) 310 mm 250 mm 480 mm
Back chamber tuning frequency (Hz) 58 Hz 51 Hz 46 Hz