Eden wt-400s hum/buzz

Funkerator · 01-03-2009, 02:06 AM

I have never posted on a forum before, but seek advice on my Eden WT-400 bass head.

I recently bought a WT-400s, a reissue of the original from original parts 2006. It is a nice amp but when I turn it on it makes a buzzing sound that does not seem to come through the speakers, just from the amp.

I thought is was kind of loud so I bought another WT-400, an original issue from 2000 to compare noises.

The WT-400 also makes this buzzing sound that does not come through the speaker but at a much quieter level. The comparison was done with identical connections.

Can anyone identify the cause of this noise and is there a way to minimize or eliminate it?

Garydean · 01-03-2009, 05:37 PM

Toroid transformers can be noisy. I heard there was an "upgrade" to help that problem and it's mentioned on the Eden site. I just went to the "upgrade" page and it was down

Funkerator · 01-03-2009, 07:29 PM

Ok, someone told me that it could be the transformer. Thank you for this information. I will try to find the "upgrade" info on the eden site.

Do you know if power conditioning and possibly power isolation transformers could reduce this kind of transformer noise?

THANKS!

Enzo · 01-03-2009, 09:26 PM

Not likely. If it is a mechanical sound from the 60Hz current flowing through the torus, any loosenesses in it can result in noise/vibration.

Garydean · 01-04-2009, 02:04 AM

Bingo. Thank you!!

01-03-2009, 02:06 AM	#1
Funkerator Junior Member Join Date: Jan 2009 Posts: 2	Eden wt-400s hum/buzz I have never posted on a forum before, but seek advice on my Eden WT-400 bass head. I recently bought a WT-400s, a reissue of the original from original parts 2006. It is a nice amp but when I turn it on it makes a buzzing sound that does not seem to come through the speakers, just from the amp. I thought is was kind of loud so I bought another WT-400, an original issue from 2000 to compare noises. The WT-400 also makes this buzzing sound that does not come through the speaker but at a much quieter level. The comparison was done with identical connections. Can anyone identify the cause of this noise and is there a way to minimize or eliminate it?

01-03-2009, 09:26 PM	#4
Enzo Senior Member Join Date: May 2006 Location: Lansing, Michigan, USA Posts: 10,366	Not likely. If it is a mechanical sound from the 60Hz current flowing through the torus, any loosenesses in it can result in noise/vibration. __________________ Education is what you're left with after you have forgotten what you have learned.

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01-03-2009, 05:37 PM	#2
Garydean Senior Member Join Date: Sep 2007 Location: Indialantic, Florida Posts: 344	Toroid transformers can be noisy. I heard there was an "upgrade" to help that problem and it's mentioned on the Eden site. I just went to the "upgrade" page and it was down

01-03-2009, 07:29 PM	#3
Funkerator Junior Member Join Date: Jan 2009 Posts: 2	Ok, someone told me that it could be the transformer. Thank you for this information. I will try to find the "upgrade" info on the eden site. Do you know if power conditioning and possibly power isolation transformers could reduce this kind of transformer noise? THANKS!

01-04-2009, 02:04 AM	#5
Garydean Senior Member Join Date: Sep 2007 Location: Indialantic, Florida Posts: 344	Bingo. Thank you!!

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