>>> "I thought tonality in the midrange was the Ref 75 big weakness." <<<
That 75 was connected to a diverse system of components, Sophia 3's, Boulder phono-stage, T + A turntable, Spiral Groove TT, Shunyata cables/power, music server etc....
All those variables make it difficult to detail specific component contributions with any degree of accuracy. Even if you had intimate knowledge of every link in that chain and the 75 was the only variable, it's still better to paint with a broad brush when talking about show-system sound related to this or that component. If there was something wrong, blame the cables.
We were part of that system and set up. Even with all the listening we did, I could not get a great handle on what component was doing what in terms of sound quality. I was certain the Spiral Groove TT was a huge plus in terms of sound quality compared to streaming. With records, I thought the system fared well given conditions.
At home, the ref 250's are an absolute revelation, so I suspect the 75 will be a great amp.
regards,
Grant
Shunyata Research
Grant
Shunyata Research