Hi Frank
the Bug is real, it's the money that's a problem
. I think you are only using 5 channels in your set up now? If this is the case I wouldn't splurge on the extra power. The RC LCR's are efficient and the Yamaha has adequate power to drive them. Then again some will say more power!! I would agree if they were the RC 70'S or RC 50'S.
Regards, Billy p