Kenwood Excelon P-XW1221D Ported 2-ohm enclosure with two 12" subwoofers at Crutchfield
Starting a new downsized build, and this thing is just beautiful. Fi Neo 3.5 15”. The website has them listed as similar to the old Q series, can't wait to hear it
FS: Dual 21" Pierce Audio/Speakerpower sealed subwoofers | AVS Forum
Pierce Audio WMD2 12" | Car Audio Forum | CarAudio.com