Was at my friends retail store the other day and got a JL Audio sub for cost. Also picked up a cheap mono-sub car audio amp at a pawn shop.

Built a sealed inclosure and installed it in the car.

Ouch! Listened to it for approximately 20 minutes then sold it!

After listening to the HDT bass for 2 years on the SET amps I had, my ears certainly do not tolerate slow, inaccurate bass any more. Would rather go without.

LOL

I have had my HDT's for several months now and I just built a similar set up for my wife's car. It is absolutely unlistenable! I have contemplated a new build and ways to make it sound better, but my good sense tells me nothing I do will make it sound "good" after being spoiled!