Subwoofers

No one’s music is really all there without a dedicated subwoofer to add the thump that gives a performance its raw, in-your-face feeling. If you’re serious about your music, you want to take a serious look at our subwoofers for filling out the low notes. And Polk subwoofers are styled to make an install a real contender on the show circuit. All at a price that’s hard to beat.

db1240 12” Subwoofer

12-inch single voice coil 4 ohm subwoofer

All the Polk features, all the Polk technology that makes our subs create big, tight, musical bass are here. The db1240 is ready for you when you’re ready to get serious about your music.

RRP $169.00 AUD

Product Manual

Polypropylene cone with rigid ABS dustcap to stiffen the cone for greater mechanical stability and lower distortion.

Marine Certified Polk db Series speakers are built tough to withstand the toughest environments so they are perfect for use in boats of all types. That’s why Correct Craft offers Polk speakers in their award-winning Nautiques ski and wakeboarding boats.

Santoprene surround is impervious to extremes in temperature, humidity and exposure to sunlight for excellent long term reliability.

Fire-retardant flat NOMEX® spider allows extended linear motion while providing highly reliable mechanical and thermal stability.

Double venting of the 4-layer Kapton voice coil former, cone/coil coupler and pole piece contribute to the high power handling and reliability of the db Series subs.

As with all Polk subwoofers, the voice coil alignment, motor and suspension were optimized using a state-of-the-art Klippel laser analyzer. The result is superior cone travel linearity for flatter response and lower distortion.

Dual voice coil version also available - db1240DVC

Optional db12G grille is available.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.

Driver Complement

Subwoofer
Quantity
Diameter 12" (30.48cm) 
Type Dynamic Balance woofer with polymer composite cone 

Electrical

Total Frequency Response 27-200 Hz 
Nominal Impedance 4 ohms
Efficiency 88 dB
Power Handling
Continuous 360 watts
Peak 720 watts
Voice Coil
Driver Diameter 2" (5.08cm) 

Shipping

Unit of Measure each 

Installation

Cut-Out
Diameter 11 1/16" (28.10cm) 
Driver Mounting Depth
Top Mount 6 1/16" (15.40cm) 
Bottom Mount 6 9/16" (16.67cm) 
Grille
Height 2 1/8" (5.40cm) 

Thiele / Small Parameters

Resonant Frequency 28.3 Hz
Xmax
Xmax Linear .62 inch/16 mm (peak to peak) 
MMS 146.7 
BL 14.5 
CMS 215.5 
Recommended Enclosure Sealed/Ported/Bandpass 
SD 80.6 sq in/520 sq cm 
VAS 2.87 cubic ft/81.4 L 
QTS .4 
QES .4 
QMS 11.7 

Warranty

Speaker Warranty 1 year parts and labor (original purchaser)