I use a Mapletree 2A SE tube stage with my Jolida 502 P and I am very happy with the sound I'm getting (Speakers are Magneplanars 1.7). I have tried the Jolida with a Creek pasive preamp and an Emotiva USP 1 solid state. With these choices, easy win for the Mapletree. Solid bass, great midrange, warm tonality and just as quiet as when using the Creek or the Emotiva.