Polk Audio EX Series II Subwoofer EX652a User Manual

Page 8

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

Driver Complement

10"

12"

Nominal Impedance

4ohms

Frequency response

20-300Hz

20-400Hz

20-500Hz

Fs (Hz)

44.64Hz

32.47Hz

24.47Hz

3.73 ohms

3.34 ohms

3.38 ohms

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

1.59 ft

4.72 ft

Vas (liters)

18.51L

44.56L

132.02L

Power Handling (watts continuous)

125watts

150watts

Power Handling (watts peak)

300watts

400watts

Sensitivity (SPL at 1 watt / 1 meter)

90 dB

92 dB

93 dB

Xmax (inches)

0.177 in.

Xmax (millimeters)

4.5 mm

Voicecoil Diameter

1.5 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

.65 ft

.95 ft

(liters)

14.2 L

18.4 L

26.9 L

Ported
Ported volume(cubic feet)

.75 ft

1.0 ft

1.25 ft

(liters)

21.2 L

28.3 L

35.4 L

Port diameter (inches)

3 in.

4 in.

(millimeters)

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

1.5 ft

(liters)

31.1 L

42.4 L

Front chamber volume (cubic feet)

.70 ft

.50 ft

.75 ft

(liters)

19.8 L

14.2 L

21.2 L

Back chamber volume (cubic feet)

.38 ft

.60 ft

.72 ft

(liters)

10.8 L

17.0 L

20.4 L

Port diameter (inches)

3 in.

4 in.

(millimeters)

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