I have some Mapleshade recordings. I am amazed by the sound quality, however, not the music. The music seems very boring to me. I have some of thier Jazz and Latin CD's. The Jazz, Andy McCloud and the Gentlemen of Jazz, is alright, the Latin music is awful. But really well recorded.
I once bought thier cable and jumpers. I was not impressed with the thin strips of copper they sent me for jumpers which was made of the same copper that was used in Mapleshade's most expensive interconnects. It was a joke. I emailed them about it and how I didnt think it was worth 20 dollars for the jumpers and how I did not hear a difference in the jumpers and I got a rather scathing email back from the owner. I sent my order back and never bought from them again. Its been like 2 or 3 years now.. I look on thier site occasionally and see nothing but snake oil. The rebuilt tube amps look nice...
It amazes me someone who is so educated in engineering is selling this snake oil...