a while back i picked up 2 pairs of mission 773e,s and a 771 center speaker, and they were a absolute bargain. i don,t know much about speakers, only you get what you pay for?anyway i never got a sub, [ i simply did,nt have the cash]i notice that richer have some eltax models , and although not a permanent solution ,would i be wasting my time complementing the missions with these eltax things. i have been told mission speakers when run in will provide better bass levels than a cheap sub, and i would be wasting my time pairing the 2 up. my front room is about 20 ft x 12 ft [rectangular]. i was contemplating a rel at a later date but don,t want the missions to be overpowered. any advice please.