Many of the ML333's had a problem with the original caps. I believe Madrigal made a decision to replace the caps if they failed, with, I think, MIT caps, even after the warranty period. As you can see, I'm a little vague on the details, but I would contact Madrigal. Was the amp sent back to the factory for the cap replacement? Were the newer caps used?
Sorry I can't be precise, but, having owned an ML333, I recall this issue.
--Neil
Sorry I can't be precise, but, having owned an ML333, I recall this issue.
--Neil