I've never owned a Mac amp. I'm presently using a Music Reference RM-200 but I just want to inform some of you , who may not aware, of a very little talked about KT-88 tube. It's called Canada Fuller. I've read it's designed in Canada and manufactured at the Shuguang plant and I wish I could find more information on it besides that. My favorite KT-88 before that was the Golden Lion. But this tube, to my ears, has better bass, and more detail in the mid range as well as in the highs. I first bought it from Parts Connextion, but now I can only find it on eBay. It's a sexy looking tube and so far, after over a year of using it nearly everyday, it seems to be reliable. Just a heads up, for some reason the prices have risen nearly $80.00 since I first purchased it. But I intend to buy another set as a back up. Just my 2 cents and a recommendation.
