Post by mattspl on Nov 9, 2019 12:41:30 GMT
I thought I’d share this little tweak I did a couple of days ago.
My speakers are active and each contain a Toroidal transformer. The left speaker in particular had developed a mechanical hum that was audible if the room was quiet, so I decided to open them up with the intention of removing the transformer and putting some rubber sheet between it and the chassis.
Once I got the backs off the speakers I could see there were already rubber discs under and on top of the transformers. I tightened the transformers, the left speakers transformer being a little loose.
I then cut a strip of car audio sound deadening mat to wrap around the transformer.
siless.myshopify.com/products/siless-80mil-36-sqft-sound-deadening-mat-sound-deadener-mat-car-sound-insulation
This is self adhesive and foil backed. My theory being it would mechanically dampen the transformer and also shield the electronics inside the speakers from the transformer.
It seems to have worked nicely, both speakers being silent now and it has also had a positive effect on the listening experience, improving resolution.
My speakers are active and each contain a Toroidal transformer. The left speaker in particular had developed a mechanical hum that was audible if the room was quiet, so I decided to open them up with the intention of removing the transformer and putting some rubber sheet between it and the chassis.
Once I got the backs off the speakers I could see there were already rubber discs under and on top of the transformers. I tightened the transformers, the left speakers transformer being a little loose.
I then cut a strip of car audio sound deadening mat to wrap around the transformer.
siless.myshopify.com/products/siless-80mil-36-sqft-sound-deadening-mat-sound-deadener-mat-car-sound-insulation
This is self adhesive and foil backed. My theory being it would mechanically dampen the transformer and also shield the electronics inside the speakers from the transformer.
It seems to have worked nicely, both speakers being silent now and it has also had a positive effect on the listening experience, improving resolution.
