I bought a Rogue RP-7, summer of 2020, to replace a Canary Audio C630 tube preamp. Reason being I had purchased a Decware Torii Junior, and whereas I very much enjoyed the liquid sound, just couldn’t push output beyond 90dB at listening distance, with 92dB Focal Aria 936 speakers, using a Canary Audio C630.
Canary Audio, 9dB max gain, output impedence 1,600 ohms, Rogue Audio 14dB max gain, output impedence 500 ohms. I thought the RP-7 would blow the C630 out of the water. But even turning volume up to 80-90%, I could barely hear the music, 50-60dB. What? I am still perplexed by this result, and ended up returning the RP-7, at a 20% restocking fee (thanks HiFi Heaven!), and selling the Decware unit, buying a PrimaLuna. Very happy with the sound of the Canary preamp, just needed more watts in the power amp. Any comments on the results based on specs for these preamps? I obviously am not an electrical engineer.