I had the Rogue RP-5 which I recently sold. The report I read on the RP-1 was that it is 90% of the RP-5. You should be fine.
Rogue RP 1 or Super Magnum 99
I currently have a Rogue Super Magnum 99 that I use with a Rogue Medusa amp. I am thinking about getting the RP 1 pre because it has a balance control, a better and more conveniently located headphone jack, a good phono section, and is a more modern design with a great display and full function remote. Also, I do not really need the external power supply on the 99 which is hard to place. The RP 5 pre has too many bells and whistles that I will never use. I have no problems with the 99 and really enjoy it. So the question is, would this constitute a move down or be an improvement? I think most people use the 99 with one of the big traditional tube amps like the 100 and possibly the RP 1 has more synergy with the Medusa. The stark simplicity of the RP attracts me. Possibly I am just succumbing to the urge for something new. Any advice from you experts out there is greatly appreciated.