Im not sure how much of a valid question this is, but here goes. I have an old all in one hi fi system, where they have two standmounts and a sub + amp/cdplayer/tuner etc. and i was wondering if it is possible to connect the sub to my current setup of Tannoy floorstanders and NAD preamp + amp. Im pretty sure the sub-woofer is passive and am wondering how to wire it up so that it will work. Any help would be greatly appreciated.