These are the specs of my Sub(Infinity Kappa 1000w) paired with xm-gs100 amp, everything set to 4ohm, i find the bass to be lacking and it's all boomy even this feels empty,
Infinity Kappa Series Subwoofers | CES 2016 - YouTube
Infinity Infinity kappa 10 in. 1000-Watt car audio subwoofer KAPPA1000W - The Home Depot
1 Pair (QTY 2) of Infinity KAPPA 800W 8" 1600 Watts Peak Power High-Performance Car Audio Subwoofer (Factory Reconditioned) - Road Entertainment
JBL Club A600 High Performance Compact Class D Car Audio Mono Subwoofer Amplifier Bundle with Infinity KAPPA 1000W 10" High-Performance 1800W Peak Power Car Audio Subwoofer and Amplifier Wiring Kit - Road
Infinity Kappa 1000W Kappa Series 10" subwoofer with selectable 2- or 4-ohm impedance at Crutchfield