Final Thoughts: Muse 100 or Audio Refinement?

Here are my final thoughts regarding matching an amp to my Theta Miles/NHT speakers. All tests are Miles direct to amp. Cables are Mogami 10 Audio. I tried the Adcom GFA-5802. Sounded good, but seemed analytical and cold. Bass was tight and punchy, but mids not as smooth as I had hoped. Currently auditioning the Audio Refinement Multi 2. Much better. Smooth and slightly softer on the ears. More open/airy mids. Bass though still tight and punchy; though more balanced and detailed. Sounds better the more I listen. Question: Will the Muse Model 100 blow the AR away? Is it worlds better or similar? Pricing for the AR is $445, whereas the Muse can be had for about $80 less. My only integrated option at this point is the AR Complete. However, I'm concerned about power as it's 50wpc, whereas the Multi 2 is 130wpc.