I am wondering if anyone is using this sub as a secondary in their HT. I upgraded to an STF-2 at the beginning of the summer and was supposed to sell my Sony to someone for $100 but he decided not to buy it from me. So now it is just sitting around and I have no real use for it, I was going to bring it up to college but it will not hook into the Cambridge SoundWorks speakers that I have for my computer and I do not have an old receiver laying around to use it with. So I was considering hooking it up and running it as a secondary sub. I don’t really need a secondary sub as the STF-2 fills my 19 x 11 room very nicely, but since its doing nothing I figure it might be worth a shot if I can find a place to put it. My only concern is that since it is a boomy sub it might bring down the sound of the HSU. But I guess if I kept the level down low it would be ok. So is anyone using a nice sub as their primary with this sub as their secondary?