I own or have owned the Mapletree Ear+ HD, Mapletree Super II and Woo Audio WA6. My impressions:
WA6: Best amp with HD650, good with RS1 as well. It's the most SS-like of the three -- very fast, with quick but less impactful bass. Warm but not overly so.
Ear+ HD: Best amp (by far) with RS1, adequate with HD650. The quintessential tube amp sound -- very pleasant (but not overly rolled off) highs, with very deep and impactful bass. HD650s sound a tad too warm and slow for my tastes. RS1s are absolutely perfect.
Super II: Splits the difference between the two. Warmer than the WA6, but quicker than the Ear+ HD. Very good with HD650 and RS1, and incredible with T1s.
So, it's kind of a tough call. I sold the WA6 when I decided that I preferred the RS1 to the HD650s. Good luck with your decision.














Seems like the way to go!


