Get the Mapletree 4SE and keep the DNA-1. From looking through the archives I remember reading the Mapletree preamps were a good match for McCormack DNA-1 or the DNA .5. Either that or get a McCormack TLC-1 stock or Deluxe. They mate well with the DNA-1. I've owned both and the sound was pleasing to my ears. Very airy yet detailed.
As for the Silver upgrade in the other thread you posted not too long ago many members told you to go for the upgrade. Second thoughts yet again?
You got a good thing there with the DNA-1 you have. I still think your preamp is the issue either that or there were synergy issues you had with the tubes. Weren't you supposed to change them to Mullards from the Mazda tubes you had in there?
Lastly Steve McCormack and Kris Jeter are honest and very approachable. They can answer your questions regarding the Silver upgrade to your DNA-1.
As for the Silver upgrade in the other thread you posted not too long ago many members told you to go for the upgrade. Second thoughts yet again?
You got a good thing there with the DNA-1 you have. I still think your preamp is the issue either that or there were synergy issues you had with the tubes. Weren't you supposed to change them to Mullards from the Mazda tubes you had in there?
Lastly Steve McCormack and Kris Jeter are honest and very approachable. They can answer your questions regarding the Silver upgrade to your DNA-1.