SKU 1088
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.

db1240 Features:

  • 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.

Dimensions - Cut-Out Diameter 11 1/16 (28.10cm) "
Dimensions Driver Mounting Depth - Bottom Mount 6 9/16 (16.67cm) "
Dimensions Driver Mounting Depth - Top Mount 6 1/16 (15.40cm) "
Dimensions Grille - Height 2 1/8 (5.40cm) "
Driver Complement Subwoofer - Diameter 12 (30.48cm) "
Driver Complement Subwoofer - Quantity 1
Driver Complement Subwoofer - Type Dynamic Balance woofer with polymer composite cone
Electrical - Efficiency 88 dB
Electrical - Nominal Impedance 4 ohms
Electrical - Total Frequency Response 27-200 Hz
Electrical Power Handling - Continuous 360 watts
Electrical Power Handling - Peak 720 watts
Electrical Voice Coil - Driver Diameter 2 (5.08cm) "
Shipping - Unit of Measure each
Thiele / Small Parameters - BL 14.5
Thiele / Small Parameters - CMS 215.5
Thiele / Small Parameters - MMS 146.7
Thiele / Small Parameters - QES 0.4
Thiele / Small Parameters - QMS 11.7
Thiele / Small Parameters - QTS 0.4
Thiele / Small Parameters - Recommended Enclosure Sealed/Ported/Bandpass
Thiele / Small Parameters - Resonant Frequency 28.3 Hz
Thiele / Small Parameters - SD 80.6 sq in/520 sq cm
Thiele / Small Parameters - VAS 2.87 cubic ft/81.4 L
Thiele / Small Parameters Xmax - Xmax Linear .62 inch/16 mm (peak to peak)
Warranty - Speaker Warranty 1 year parts and labor (original purchaser)