Polk Audio db1240 db Series 12 4-ohm subwoofer at Crutchfield

2 Ohm, 4 Ohm, 1 Ohm, what's the difference? - Car Stereo Reviews & News + Tuning, Wiring, How to Guide's

Polk/MOMO MM2124 12 4-ohm subwoofer at Crutchfield Canada

Polk Audio DB 1242 SVC DB+ Series shallow-mount 12 4-ohm subwoofer at Crutchfield

Polk Audio DB 1242 DVC DB+ Series shallow-mount 12 subwoofer with dual 4- ohm voice coils at Crutchfield

Polk DB Series Car Speakers - Crutchfield

Brand new - Polk Audio db1240 12 Single 4 ohm 720W db Series Car Subwoofer

Polk Audio DXi 124 DVC DXi Series 12 subwoofer with dual 4-ohm voice coils at Crutchfield

Polk DB+ Series Subwoofers - Crutchfield

Polk Audio DB 1242 DVC DB+ Series shallow-mount 12 subwoofer with dual 4- ohm voice coils at Crutchfield

How to Wire Two Single 4 ohm Subwoofers to a 2 ohm Final Impedance, Parallel Wiring