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!

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.