2. misc-audio
  3. 155436-100034

Reducing Humming Sound

Hello all!

I am using a Tripp-Lite LCR2400 AC line conditioner in my system.  I am very happy with it and the peace of mind it offers me with regards to not only protecting my equipment, but insuring the power I'm getting is clean and stable.

This unit is known to have an audible hum to it...it's not very loud, but it can be heard faintly in a quiet room. When playing music, the hum is not noticeable at all.

If I were to attempt to reduce this hum, would opening the unit up and affixing sound deadening material (like Dynamat) to the interior of the case/chasis/cover be a good solution?  Normally, I would go ahead and give this a try, but since there is such a high level of electricity being handled by this unit, I don't want to do anything that would be dangerous once I plug it in and turn it back on.

Thanks for any feedback,

Arvin
arvincastro

Showing 4 responses by arvincastro

arvincastro's avatar
arvincastro OP
121 posts
 
Thanks all for your suggestions!

I had always been a little bit leary about opening up this unit due to well, the possibility of death, but thought there might be an instance of someone who actually did what is was suggesting. I’m glad I asked before jumping in!

I will try dampening, externally, the unit in some way. Like I said, the hum isn’t particularly loud, so if I can apply some weight/pressure effectively, it should help a lot. I will also look at that Emotiva unit...it’s not that expensive, very doable. 
Thanks again and hope you are all doing well!

Arvin
arvincastro's avatar
arvincastro OP
121 posts
 
@oldhvymec  

While I would love to see what you find out, I do hope you know what you’re doing...please stay safe!

Arvin
arvincastro's avatar
arvincastro OP
121 posts
 
@uberwaltz  

Yes, the more I researched around other forums (including at Tripp-Lite) the more I understand this to be a unit that has a hum...some louder than others. 
The other thing is that I did read about how some users/techs eliminate such a hum by using rubber grommets to isolate the transformer from the chassis...similar to what @lowrider57 suggested. 
All in all, I can live with it...just wanted to know if an easy fix was possible. 
Again, Thanks everyone for your input!

Arvin
arvincastro's avatar
arvincastro OP
121 posts
 
@oldhvymec

Thanks for the report and I am very happy to hear it wasn't too trying a chore for you!  I actually sent your findings to a friend of mine who happens to be an electrician and he said it looks pretty straight-forward...we're hoping to meet up sometime after this COVID-19 business allows us to try silencing the enclosure as you've stated.

Thanks again...Hope you and yours are well!

Arvin 
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