12-inch single voice coil 4 ohm subwoofer
Incredible Sound, Affordable Price
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.
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.
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.
|Type||Dynamic Balance woofer with polymer composite cone|
|Total Frequency Response||27-200 Hz|
|Nominal Impedance||4 ohms|
|Driver Diameter||2" (5.08cm)|
Thiele / Small Parameters
|Resonant Frequency||28.3 Hz|
|Xmax Linear||.62 inch/16 mm (peak to peak)|
|SD||80.6 sq in/520 sq cm|
|VAS||2.87 cubic ft/81.4 L|
|Cut-Out Diameter||11 1/16" (28.10cm)|
|Height||2 1/8" (5.40cm)|
|Driver Mounting Depth|
|Top Mount||6 1/16" (15.40cm)|
|Bottom Mount||6 9/16" (16.67cm)|
|Unit of Measure||each|
|Speaker Warranty||1 year parts and labor (original purchaser)|
Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.
6 reviews with an average of 4.5Write your own review
by Justin, December 27, 200887 out of 161 people found this review helpful.
very satisfying bass. excellent bass for the money.
these subs are a great deal. i bought the dual 12's in the vented box and intalled them in my 95 cutlass., I powered them with a alpine M850(850 rms)these subs are rated to handle around 320 rms or so and i had them bumping with my amp maxed! they can take a beating. but i did eventually blow both subs and only managing to save one of them by rewiring a new voice coil in it. im still using the one sub and just bought two 12 inch polk momos. polk is a excellent way to go if you want the best possible sound without paying a arm and a leg. deffinitly beats spending thousands of dollars on JL subwoofers garenteed.
by Andy, August 3, 200885 out of 166 people found this review helpful.
sound really good
by Kevin, June 4, 200985 out of 146 people found this review helpful.
Very clear, defined bass if in the recommended size enclosure
I just purchased these for my '99 Crownline boat and absolutely love them. I replaced a blown pair of TREO 10 inch and these Polks blow them away.
by Guy, September 18, 201119 out of 35 people found this review helpful.
just replaced 2 qpower 12s with these. they hit harder so far. still got the 800 watt amp, and im pretty sure its not pushing them real hard so im fixing to put a 2000 watt amp on them then they should shake my world.... these are the bust subs you can buy for a hundred bucks!
by Rob, April 24, 20128 out of 13 people found this review helpful.
Quick slide terminals and allen wrench screws
These are great sounding subs. I have them paired with a Boston Acoutics GT-2200 reference series amplifier wired at 2 ohms for around 900 watts rms. With this setup they sound very accurate and give enough punch to shake my whole care while still maintaining that great hum to hit midbass notes.
by shane, February 12, 20131 out of 4 people found this review helpful.
sound just as good as most high end audio equipment for way less. $70 average db single coil vs $250 average kicker solar single coil.
prone to blowing when used at average cont power of 400 watt 4 ohm.. went threw a few db's to make sure weakness was not a fluke.
i recently came into posesion of seven 12" single coil db series. i modified a dual housing kicker super bass limited witch was used for a spare set of 12" square solarbaricks to use the polk db"s.. wired them in tandem to a home 4 ohm 500 watt cont-1050 peak receiver. to my amazment they almost sounded similar. only difference the kickers could constantly run peak(of course) with no worries for average of 12 hrs but the db's had issues after 5 or 6 hrs on safe cont power(400 watt 4 ohm). as a custom audio installation expert its a good buy for first time sub owners looking to put some beat in the trunk. experienced owners or (competitions) not advised.
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