Just wanted to ask anything has tried these two amps before and could post their thoughts on them? Currently I've just splurged like crazy on a used set of MKVII+, Matrix Mini dac and a HD650, wanting to try a balanced setup. Initial impressions seem promising as the HD650s seem slightly more detailed and clear than my HD600s on my 337, but that might just be placebo at work haha. Hopefully someone can justify my purchase as I'm not sure if it's worth it to keep both systems, if not I might be selling either the DV337 or little dot. Thanks for the replies!
I haven't heard those amps but the fact that you need confirmation from others suggest that the difference between the two set ups are incredibly small so I would keep the most practical one that works with most of my cans. You might want to get a balanced to single ended converter and ask a friend to help you compare the two amps blind before taking a decision.