Here my problem. I have a amp with a sub outlet, but I have three subs that need power. Right now I have the sub out put going to my RTi100's. I have a powered 100 12inch sub that am running as a passive (am just using right and left out puts into it). I tried a "Y" adapter so all three would have power, but I think it was to much of a pull on the receiver. Any ideas how to get power to all three?