Interesting I thought.
IMHO I had heard the McIntosh275 on more than one occasion and also after I purchased MY m125's and I can say I felt very comfortable knowing I made a sound decision with Bob's m125's.
Mentioning this to one or two people I fell like I said blasphemy after the looks and remarks I encounter. It seems it's all or at least in part about money and a branded name. The more expensive the better.
Not the case IMO.
Bob Latino's Tubes!