GoldenEar Triton 1 vs. Triton 1R


I’m considering trading in my GoldenEar Triton 1’s fo Triton 1R’s.  Has anyone here done the same, and if so can you tell me what the differences are?
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Surprisingly, checking out the Goldenear forum, there was only one detailed comparison of the 1 to the 1R.  Mostly discussing the TR.
I’d like more opinions.
I auditioned both some time ago. Before purchasing either, be sure to audition both, and pay particular attention to the tweeters. Use some recordings with challenging treble.