What is the difference between the Base Series and Performance Series in Carrier condenser, assuming I am speaking of the same SEER 16 rating equipments? There isn't a lot of information on Carrier's site beyond marketing fluff.
Also, has any one heard of this "Whipser Caller" technlogy that makes the condenser noise virutally disappear? A vendor touted about this on Carrier condensers but I can't find any information on the Web.