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#380332 - 07/19/12 08:36 AM Re: EP350 Humming After I Moved Homes [Re: gog]
GuitarStv Offline
enthusiast

Registered: 05/31/12
Posts: 30
The EP350 that I got a month or so ago had a ground screw. It hummed like crazy until I removed it. It was a B stock though. The new ones don't have them?

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#380333 - 07/19/12 08:37 AM Re: EP350 Humming After I Moved Homes [Re: gog]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17782
Loc: NoVA
I couldn't see one on my 350 amp or in the picture on Axiom's site, but I'll let you know when I get my new amp.
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#380337 - 07/19/12 09:51 AM Re: EP350 Humming After I Moved Homes [Re: gog]
CatBrat Offline
axiomite

Registered: 08/05/09
Posts: 5876
Loc: Milky Way Galaxy
The ground screw should be near where you plug the power cord into the back of the unit. That's probably below the lowest point on your picture.

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#380364 - 07/19/12 02:27 PM Re: EP350 Humming After I Moved Homes [Re: CatBrat]
gog Offline
regular

Registered: 07/17/12
Posts: 9
Removed the Sat. receiver from the DENON, still a hum on the sub. Also tried unplugging and plugging in the rca plug from denon to ep350 and the hum goes away once unplugged? So I'm still at a loss for what is causing this, I had no issues at my old house.

Yes it is the EP350 V3 as in the title.

One funny thing I did notice is that when the AC in the house powered on, the "hum" on the receiver also changed. The hum changed audibly along with the AC powering on. As if the current from the house is causing the hum, this is indeed a much older house.


Edited by gog (07/19/12 02:46 PM)

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#380366 - 07/19/12 02:36 PM Re: EP350 Humming After I Moved Homes [Re: gog]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17782
Loc: NoVA
Did you try the cheater plug?
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I am the Doctor, and THIS... is my SPOON!

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#380367 - 07/19/12 02:47 PM Re: EP350 Humming After I Moved Homes [Re: Ken.C]
gog Offline
regular

Registered: 07/17/12
Posts: 9
Not yet, heading to radio shack today.

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#380385 - 07/19/12 06:48 PM Re: EP350 Humming After I Moved Homes [Re: gog]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13337
Loc: Iowa
my 350's don't have a ground screw either, the cheater plug worked for my 350's after they starting buzzing/humming once Direct TV was introduced to the system.
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#380411 - 07/20/12 06:40 AM Re: EP350 Humming After I Moved Homes [Re: gog]
J. B. Offline
connoisseur

Registered: 01/19/11
Posts: 1271
Loc: Quebec, Canada
in this here house, i'm the only one humming (along with the music). ;-)
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#380433 - 07/20/12 11:22 AM Re: EP350 Humming After I Moved Homes [Re: gog]
Amie Offline
connoisseur

Registered: 02/06/02
Posts: 1620
I checked with Steve to see if I should update the EP350 page, and all the current amps have a ground screw. There were some changes throughout the production runs but the current production all have it.
_________________________
Amie Colquhoun
Axiom Audio

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#380480 - 07/20/12 11:21 PM Re: EP350 Humming After I Moved Homes [Re: gog]
gog Offline
regular

Registered: 07/17/12
Posts: 9
Where should I put this ground loop isolater?



Here is a pic of the back panel, is that screw next to the power plug the ground screw? sorry for the huge pic, camera phone having issues.

http://i.imgur.com/ZcKQT.jpg

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