Mapletree Ultra 4A SE - mods

Rockadanny, I have channel level control on the MC7200, so I can handle any differences in output that way. Actually, I'll be checking that now that you mentioned it, hadn't thought about it before, and I know for a fact the room is acoustically a disaster.

Re the umbilical cable, I've read and been told by multiple owners of the Mapletree that it makes a big difference in sound. The stock one is lamp wire, and going to silver is a good improvement. I've found VH Audio sells the silver wire, but I'm wondering if there are other sources I've missed.

why dont you consult the good doctor?
I'm sure he will be glad to assist with improvements.

Update, took the channel level controls (pots) out of the audio path. Result: noticeable improvement in overall sound.

Dag! I wish you hadn't said that. Now my upgrade wheels are churning ... and just when I thought I was finally done!

Can you describe the improvements a little more please?

Yes the Revelation umbilical cable makes a hugh difference... so a DIY progect could work nicely. However the power cord does make that large of a change. Also NOS tubes can make a big improvement as well.

Love my 4A SE.
Tony