a powered sub is a good solution, finding one that is designed for music and not home theater special effects will be an excellent adventure. staying with a 10" driver, try to find something like a REL or Soliloquy. (I have listened to some small M&K subs that were really good, and are on the net used all the time. and this may get ridiculed but the small Polk Audio sub was not bad if your using it to augment bass)
Tubes plus a sub?
Hi, I was wondering if I can use a sub to augment the bass on my system which is currently using an old Dynaco ST-70 amplifier. I love the Dynaco and don't really want to part with it. Obviously, with this choice you can also see that I'm trying to work in a restricted budget (otherwise I'd just get a better amp and speakers) I was wondering if anyone has any experience with mating a sub and tube amps and what kind of subwoofer you'd use to achieve a good clean bass.