Home » Audio » General » McIntosh C20 tube preamp, sound inequal...
Check each stage, does output = input with gain? [message #26627 is a reply to message #26625] Mon, 25 June 2007 17:11 Go to previous messageGo to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

Has your technician done a swept sine test on both chanels to get a response curve? Has he checked for distortion? I think I'd check those two things first. You may have a problem that's easier to find with measurements than listening by ear. This kind of test should be done first end-to-end, then at each amplification stage in the circuit. You will eventually find a point where the signal changes from what is present at the inputs, and by narrowing down each stage one at a time, your technician should be able to find the cause.


 
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