I have the x3500h also and use the Audyssey MultEQ Editor app and it works very well for me. It costs $20 from Google or Apple and gives you much more control than standard Audyssey. I'd recommend trying it before you buy more hardware.Looking at ML website. Both units come with ARC? I am using a minidsp with my Denon x3500h for subwoofer duty. The Denon has audessy x32 however I do not like how it eq's the my r5's. Is ARC better vs Audessy?
Audyssey MultEQ Editor app - Apps on Google Play
Audyssey MultEQ Editor app for Denon Marantz AV Receiver products
play.google.com
Edit: Added Denon linkAudyssey MultEQ Editor app - Apps on Google Play
Audyssey MultEQ Editor app for Denon Marantz AV Receiver products
play.google.com
Audyssey MultEQ Editor App | Take total control of the way your home cinema sounds | Denon
Tailor tailor the sound of your Denon home cinema to your personal preferences with the Audyssey MultEQ Editor App
www.denon.com
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