Just got a X-101-C integrated amp, completely restored. I have a 400 receiver, but I do believe that the 101C is more to my liking. Enormous sound. I had a 500C that I loved but traded it for my current speakers, original Klipsch Cornwalls. I really missed the 500C, and the 101C uses the same 7591 power tubes. I know there is not much sonic difference between the 7591's and the 400's 7868 but I prefer the overall presentation that the 7591 gives. A bit more muscle, a bit more grit. An album like Sticky Fingers really kicks some serious ass on an amp like this. Monday morning, I'm home alone, on this very warm Northern California day, the front door is open and the neighbors are going to get a taste of the new addition.
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