I am not familiar with Rogue amps, but i was impressed with CA-50 and compared it with CJ Cav-50. However, lack of flexibility (only 6550 tube) and price swayed me toward older Sonic Frontiers Control-1 where i could use variety of tubes (Kt88, Kt90, 6550 and El34) for wider range of sound. Now i am looking to upgrade to separates. CA-50 has very open sound and very good bass. More, ss sounding without much glare. It doesn't produce larger than life sound (like CJ's Cav-50) but still has large soundstage more up-front than CJ's, so it does appear that detail is better. Cav-50 appears better with rock music (although didn't listen more than couple of rock CD's). This doesn't answer your question, but i hope it helps some?
