If you're having that kind of trouble with the Rogue, maybe you should consider a different pair of speakers.
Rogue Sphinx v Nakamichi PA 5 MMKII and a preamp
I am trying to decide between used items for around the same price A Rogue Sphinx V1 with remote verses a Nak PA 5 MK II and maybe an NAD or Rotel preamp with remote. The integrated would be easy but will it sound better then the separates > Both can drive my big old Infinity's but I am guessing the NAK amp will more current