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Well, my newly purchase in Dec 2015 Chinook SE has developed a bad hum. Happened overnight. I switched out tubes, hum still present. Switched ICs, still there. Moved to another audio setup, hum still there. After being on 30 mins the hum lessened but then a scratchy/crackly sound was present. Back to Manley Labs for service - waiting to hear back from them on what to do. Unit has less than 20 hrs on it. Anyone else have issues like this with their Chinook? :bonkers: