Pioneer GM-D8601 Class D Mono Amplifier with Wired Bass Boost Remote
I bought this amp because it could go as low as 1 ohm.  I hooked it up to a new 12\\" JL Audio 2 ohm W3 in a sealed box and it sounds amazing.  If I didn't know better I would think I had 3 subs in the trunk.  I usually have to turn down the bass level on the deck because it get too loud.  I love that at the level I play my music, that I never have to worry about pushing the amp or sub too hard.  Great amp for a single sub application.