Rogue RP-7 vs. New RP-9 - What's the Difference?


I just got an RP-7 recently and I went to their site to look up the manual as I was setting it up and I see they now have an upgraded RP-9 model with different tubes (Russian 6H30P vs 12AU7 in the 7).  I can't seem to make out any other differences.

I thought this might warrant a discussion from those who know more than I do. Thoughts?
irrenarzt
I really appreciate your input!

Any additional comments would be nice when you feel the RP-9 is fully run-in 🤓

btw, Very nice rig! 
@mulveling Amazing system, appreciate your comments. Its cool to see the Rogue hanging in there with stiff competition. Have you ever considered custom tube pres for example from oliver sayes?
Look forward to how rp9 does as it continues to burn in.
@mulveling Just wondering if you might have an update on the RP-9 with the VAC 200iQ amps and how it compares with the Ref 6 with a change in amp and more break-in.  Thanks.