I'm not familiar with the VR-5s. Impedance and power requirements are important when matching any speaker to an amp. Paul Spletz's ZERO autoformers are designed to solve the impedance problem, if it exists. It's possible that even your Rogues might benefit from such a device, don't know. If your Rogues play loud enough for you, then I don't see why the Atma-Spheres wouldn't. I don't know the Rogues so I can't speak to the sound comparison. Disclaimer: I have a pair of older MA-1 MkIIs for sale here on AudioGon. Sorry I couldn't be more help.
Rogue M-120 to Atma-sphere MA-1 Mk.II.2?
I currently use the Rogue monoblocks to drive Von Schweikert VR-5 HSE's and love the Rogues. But I've been reading all the praises of the OTL designs of Ralph Karsten. Anybody out there have experience with these two fine amps and could advise me if you got substantially more quality for the buck when trading up to the MA-1's? I'm also not sure of the compatibility of the OTL design with the VR-5's since they have variable impedance. Thanks!