2. amps-preamps
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Attn: McCormack DNA 0.5 owners

I purchased a DNA 0.5 used about 5-6 months ago and love it, I do have a question about it though. When I turn the amp on and off, I get the dreaded THUMP, is this common to all McCormack DNA amps? The amp I had prior to the McCormack had a little thump, is this a problem with most ss amps? Will it go away if I send the amp to SMC for upgrades? I have been thinking about sending the amp to get a Rev. A upgrade done. Any help or info would be great. Thank you.
zspradlin

Showing 1 response by bigtee

bigtee
803 posts
 
I have had a mixed bag with the McCormack's I've used. Most of them didn't thump. But I did have one that did. As mentioned above, it may have something to do with the mute relay. Seems the older they get the more likely this is to happen.
Call McCormack and ask. He's a really good guy and shoots straight.
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