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The K5 Series is Kicker's line of car subwoofers, and the W10K5S2 is the 10-inch single-voice-coil model wired for 2 ohms. It is built for a sealed or ported box in a daily-driver system, and the 2-ohm voice coil lets a single sub pull more power from a compatible mono amp than a 4-ohm version. Kicker's K5 line sits above the entry Comp series and below the square L7, so it targets buyers who want more output than a basic sub without the L7's footprint and cost. Owners of Kicker subs generally praise output and durability; the trade-offs are box size and the need for an amp that is stable at 2 ohms.
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Lowest price we've seen: $49.95 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Owners of Kicker subwoofers generally report strong output for the money and hold up well over time. Criticism tends to focus on enclosure requirements and the need for adequate amplifier power.
The Rockville W10K5S2 is a 10-inch car subwoofer from the K5 Series with a single 2-ohm voice coil. It is rated for 1200 watts peak, 600 watts program and 300 watts CEA RMS power handling.
The cone is a fiber-reinforced, non-pressed paper cone with blue stitching reinforcement and a thick foam surround. The paper dust cap is light. The voice coil is a 2-inch, 4-layer black aluminum design wound with OFC (100% copper) wire. A 40 oz magnet, a high BL magnetic motor gap and a vented hole in the T-yoke help with heat dissipation.
The basket is cast iron with a black sanded finish. Rubber boot covers protect the magnet. Chrome-plated binding post terminals accept any gauge wire. A Rockville-branded mounting gasket helps seal the subwoofer air-tight when mounted.