Was curious of the process in potentially doing this as a less expensive upgrade. I am interested in using a Harman Kardon HK-3490 as a headphone amp (currently still have my Denons, but am looking to upgrade to the HE-500s). Now, I'm thinking outside of using the HK's headphone out, rather using either the RCA outputs (worth it?) or the speaker terminals directly to power the future HE-500's. My initial thought was to use something like this:
Is this a worthwhile upgrade path over the LD1+ I currently have? Or for the HE-500's, would connecting to the speaker terminals be a better option to power them? I'm not sure how that process would work, but seeking opinions for now.