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May 31, 2014 at 11:59 pm #111663
owen33
MemberMy H9 hums when powered. Is this normal? It's really loud on power up but there is still a hum coming from inside the pedal. Its not in my guitar amp chain, it's the pedal itself… just sitting powered on making a slight hum.
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June 1, 2014 at 1:12 am #126027
gkellum
ParticipantNo, that's not normal. You're powering it with the Eventide power supply? Does it sound like it could be a ground loop?
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June 1, 2014 at 2:11 am #126028
owen33
MemberPowered with the eventide supply. That is the only thing plugged in. No guitar or amp. It makes a hum noise like you would expect a tube amp's transformer to make. It works fine but something internal in the pedal is making the noise.
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June 1, 2014 at 2:13 am #126029
owen33
MemberUsing the supplied eventide wall wart. That is the only thing plugged in. No guitar or amp. Its something internally in the pedal humming. Like a transformer would hum.
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June 1, 2014 at 2:22 am #136746
AAgnello
ModeratorEventide StaffHum is usually a ground loop. If the H9 supply and amp are plugged into different power strips or outlets and the grounds aren't solid you could hear hum.
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June 1, 2014 at 2:29 am #126030
AAgnello
ModeratorEventide StaffWe haven't run into this before. If the pedal itself is humming please send an email to support@eventide.com.
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June 2, 2014 at 4:02 pm #136749
nickrose
ModeratorEventide StaffIs the USB plugged in ?
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June 2, 2014 at 6:12 pm #136753
owen33
MemberNo, just the power plug, no usb, no 1/4 in plugs to guitar or amp, nothing else plugged in to the power strip. On power up it's a loud hum followed by a click and then a less noticeable hum.
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June 2, 2014 at 6:55 pm #136756
nickrose
ModeratorEventide StaffI think we all misread your posts, and figured that the hum was heard at the amp, whereas you are saying that the pedal ITSELF is humming.
This must be a hardware problem, probably in the internal power circuitry, so you should contact support@eventide.com. Sorry.
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June 20, 2014 at 4:06 pm #136854
doombie22
Participanti get it sometimes with my usb plugged in
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June 21, 2014 at 1:49 am #136856
nickrose
ModeratorEventide Staffdoombie22:
i get it sometimes with my usb plugged in
This will be a different thing, probably a ground loop. Try and make sure that everything connected to your H9 (including your computer and monitor) are plugged into the same power outlet.
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