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Get The Audio You Want Now & Pay Later- Check Out Our Financing Options
Get The Audio You Want Now & Pay Later- Check Out Our Financing Options

Kicker 45KM122 12" 350W 2-Ohm Marine/Powersports/Boat Subwoofer/Sub KM12

Original price $229.95 - Original price $229.95
Original price $229.95
$229.99 - $229.99
Current price $229.99

12" 2Ω Marine Subwoofer


The KICKER® KM 12-inch Marine Subwoofer makes serious bass in a sealed or ported enclosure. Made to take the power and the weather, this sub is custom made to bump in your boat.


Packed with features and made for marine, KICKER gives you the deep, loud bass your boat needs with the KM Series of subs.


  • Two-Ohm Voice Coil
  • Injection-Molded Polypropylene Cone
  • Co-molded Santoprene® Surround
  • UniPlate™ Back Plate And Pole Piece
  • Thick Tinsel Leads
  • Large Ceramic Magnet
  • Polymer Basket Resists Corrosion
  • Protective Terminal Cap
  • Stainless Mounting Hardware Included
  • Meets or Exceeds ASTM Standards for UV and Salt/Fog Exposure
    (ASTM B117 200 hr. Salt Fog Test) (ASTM G154 400 hr. Accelerated UV Test)

Want setup help? Go to KICKERU for a free woofer and amplifier configuration app!
*The KM 12-inch Subwoofer works best with a sealed or ported enclosure and 175 watts of recommended power. See below for more details.


Thiele/Small Parameters


12, 30

Impedance (OHMS)


Peak Power (watts, per ANSI/CTA-2031-A)


Recommended Amplifier Power (watts RMS)


Sealed Enclosure Volume Min-Max(ft³, L)

1.25-3.5, 25.4-99.1

Vented Enclosure Volume Min-Max(ft³, L)

1.75-2.25, 49.6-63.7

Frequency Response(Hz)


Mounting Depth(in, cm)

5.5, 13.9

Hole Diameter(in, cm)

11, 27.9

Outer Diameter(in, cm)

13, 32.95

What's in the Box:

1 - 12" Woofer
1 - Back gasket
8 - Mounting screws
8 - Mounting screw clips
1 - Manual