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  #11  
Old 09-12-2018, 07:05 AM
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mcpaf76 mcpaf76 is offline
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Just to add my personal experience, my new Ma252 is dead silent, ear to speakers, with a silent test track playing 100% volume. I will keep an eye on it for this hum.
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Old 09-12-2018, 09:32 PM
Formerly YB-2 Formerly YB-2 is online now
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If you own an MA252 and like everything but the hum, try rolling in a set of Gold Lion tubes that have been tested by the seller (Tube Depot, whomever). Would not be the first time an OEM provided a noisy set of tubes to their customers.
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Old 11-12-2018, 07:59 PM
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I emailed McIntosh about this.Their answer is that it is to be expected with tubes running the pre amp functions....anyway I have this in my system but you have to place your ear within a centimeter of the active speaker drivers.

Gabe
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