Discuss Eris E4.5, E5, E8, E44 and E66 here
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I have put in a ticket as well, but hoped someone might know what to do!

My set worked fine for a short while but now anytime I turn on power there's a loud, fast "thump" from the monitors; I have disconnected and re-connected all cords to no avail.

Any help appreciated!
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by richardtickle on Fri Feb 26, 2021 4:15 pm
I've put in a ticket order myself. Same problem. I can unhook everything but the power cable from my Presonus E4.5 and the sound is still there. Volume knob doesn't affect it either.
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by mikehammontree on Sun Aug 08, 2021 11:08 am
What was the resolution on this? Because my 4.5 just started the fast thumping sound as well.

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