I have the Monoprice version which occasionally goes on sale for under $100. It has a tube preamp section and an AB solid state amp section. It is a great match for M3s! Sound is silly good! I've given a bunch away as presents paired with M3s. I did receive one which was DOA but at that price, who cares?

Go get you one and enjoy!
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Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.