How much have sub-woofers changed over the years?

i know what you mean.

i am in the same boat of lookin for a sub. man have things changed. i remember years ago you bought muse or kinergetics.

i think because of the home theatre boom, the technology has really improved

here are some observations:

1. there are some small ones that sound really, really good.
2. the amps have changed. High powered class d.
3. the drivers have improved alot.
4. the crossover have phase adjustments to really dial in the transition and avoid cancelletion ( this is a biggie imo).

hope that helps,

mike