I just ordered 2 SC Reference subs. And I had a question... My current subs in my system now are 2 SCII. Smaller then the Reference. But do deliver some great bass IMO. But doesn't go as deep. Anyway I was thinking of still using these subs with the Reference. Can I use a Y for each of the LFE out of the receiver? Like one Y for the left LFE to one SCII and the other to the SC Reference. Then same config for the right LFE? My receiver is a Pioneer SC-09tx. And it has left and right LFE outs. And also will this setup be ok since each pair are different in sizes?