Infinity Kappa 103WDSSI 10" Car Audio Subwoofer
Best price now
$129.95at East Car AudioObserved Nov 4, 2026, 6:52 PM
35% under what the other stores charge
Compared across 4 stores. Prices are checked against each store and labelled with when.
35% under what the other stores charge
Compared across 4 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Infinity Kappa 103WDSSI is a 10-inch car subwoofer rated at 450 W RMS and 1350 W peak, with a dual voice coil and Infinity's Selectable Smart Impedance, which lets you run it at 2 or 4 ohms from the same driver. It is a top-mount, non-shallow design needing about 6-1/4 inches of mounting depth, and it ships with a trim ring, foam gasket and eight screws. At $129.95 at East Car Audio as of November 4, 2026, it sits at the low end of its recent range across the four stores that list it new.
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Lowest price we've seen: $129.95 on Nov 4 at East Car Audio. Tracked across 10 stores since Nov 4.
Owner feedback on the Kappa 10-inch sub is generally positive, with people praising its output for the size and the convenience of the impedance switch. Complaints tend to focus on the depth it needs and on it wanting a solid enclosure and clean power to sound its best.