Hi Berndt, I'm curious what amps you tried with your mapletree. I hope to soon build a gc kit I bought last year from Audiosector.
I have a gc built by someone else from a chipamp kit. I tried a Decware zsla1 and a Minimax pre with it, both worked well and sounded good. But I wanted a bit more sweetness and body, always thought the Mapletree would be more satisfying.
Currently I'm using a Scott 222c, RedWine iMod, Hawthorne Silver Iris, Rythmik sub. Sounds great. But I'm getting the itch to try something else amp/pre wise. Might sell the Scott and get a tube pre for the Audiosector gc. At the pondering stage now.