Me Personally I love Audiobahn subs, The Immortal is 2000watt rms beast for one 12" and hits hard and is a durable sub.

My Personal setup in my 1977 Monte Carlo is a Sony Explode which i call an exploder which is 45x4

Audiobahn 1600watt peak amp
Audiobahn 800watt peak subs, the high performance subs.. two 12inchs in a ported box

and 2 pioneer speakers that are 6x9's which are rated 220watts peak run through an old sony amp which is 60watts x3

thats my setup and cost me about 300 to buy and install.

so whats yours or what do you want to put in your ride?