I’m no expert, but I’m about to do the same thing. My source will be Qobuz streaming through my Eversolo DMP A-8. I have one amp (Primaluna EVO300 INT) connected to the Eversolo via the “rca out” and the other (Yamaha A-S3000) connected to the “balanced out”. Both amps will have speaker wires connected to my Cornwall IVs (2 sets of posts bridged). To compare the two amps, all I need to do is toggle between the audio out options on the Eversolo. If my more experienced brethren here see anything here that risks blowing something up, please warn me. Thanks!
DD