12" 4Ω 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.
Four-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.
TS Parameters PDF link 45KM124 T/S Parameters PDF
Peak Power (watts, per ANSI/CTA-2031-A)
Recommended Amplifier Power (watts RMS)
Sealed Enclosure Volume Min-Max(ft³, L)
Vented Enclosure Volume Min-Max(ft³, L)
Mounting Depth(in, cm)
Hole Diameter(in, cm)
Outer Diameter(in, cm)
What's in the Box:
1 - 12" Woofer
1 - Back gasket
8 - Mounting screws
8 - Mounting screw clips
1 - Manual
*Assumes typical music program with minimal amplifier clipping; varies with enclosure size. See your KICKER dealer for details.
**Port Volume Excluded.
Due to continual development, product and specifications are subject to change without notice. Stillwater Designs and its agents are not responsible for typographical errors.