Preamp inputs - different quality


Something I found that might stir the tweakers: My preamp has multiple single-ended inputs. I found that input 2 sounds better than input 1 - less veiled and more detail. The preamp is about 5-years old, which may be the culprit. FWIW, it's a Krell KCT.
bigamp
Do your inputs have a specific application or are they just numbered 1, 2, 3, etc.? I have heard in certain cases that some inputs do sound different because they are wired differently or are for different sources. Also, is it possible that your "input 1" hasn't been used as much as "input 2"? Maybe it needs break-in? Wow, I said "different" three times in one sentence!
They're just numbered 1-3. I moved my CD player cable from input 1 to 2 and heard the difference. Input 2 has been used less.
Bigamp, Are you sure the input trim levels are all set to the same value? Go through the menu to set both level and balance for all inputs you use. Z.