Another option is to buy a REL or another sub that offers a high resistance connection to the amp outputs of your integrated amp (the five in ones on the back that go to your speaker cables). BTW I would recommend the REL anyway just for pure sonics in a two channel or even HT setup. Back to the connectio option. These essentially take the signal from your amp posts (with very high resistance- orders of magnitude higher than speakers- so no change to speaker signal). This also gives the theoretical advantage thatthe sub sees the same dynamics that the speakers see. I will try to make that clearer. The speakers see a signal from the amp. A sub typically sees a signal from a preamp- one step further from the speakers. All amps change things a little from their original signal, so in theory this makes the sub and the main speakers a little closer to each other (or so the advertising says). The sub gets the full range signal from the amp now and uses its own crossover to determine frquency response. This is probably a very good way from a purists standpoint to run a sub. Others may disagree and maybe they are right. Anyway, that's another optionaside from the ones posted by Drew. His are good ideas too. If you are able, take time to hear the RELs. They blend incredibly well with most speakers. I looked at a lot of subs and ended up very happy with my REL. Probably the best compliment I can pay it is that I never notice it's there until I turn it off. Hope this was helpful. Happy listening,
Todd
Todd