I'm rebuilding a Russco Studio Pro Model B turntable and along with all the usual mods I was thinking of putting a sound deadening material on the bottom of the cast aluminum chassis.
After stripping the chassis for preparation of getting it powder coated I tapped the chassis with the handle of a screwdriver and it rang like a bell.
Doing some searching last night brought up a product from PartsExpress called "Sonic Barrier". It looks nicer and seems like it would be easier to work with.
Any Sonic Barrier users here?
Thanks for any advise.
BillWojo
After stripping the chassis for preparation of getting it powder coated I tapped the chassis with the handle of a screwdriver and it rang like a bell.
Doing some searching last night brought up a product from PartsExpress called "Sonic Barrier". It looks nicer and seems like it would be easier to work with.
Any Sonic Barrier users here?
Thanks for any advise.
BillWojo
A quick google for "Sonic Barrier" brought up a 1-1/4" thick block. It looks like a room treatment to absorb sound waves. From what I saw I don't think it has a turntable application.
Dynamat (and equivalent products) is a sheet 1/16" thick, with an adhesive butyl rubber layer and a thin aluminuim sheet. When stuck to surfaces it absorbs vibrations (there may be a more technical description of how it works). This is what you would use on a turntable.
I experimented with a version of Dynamat on a turntable. It can help, but be aware that putting too much on can suck the life from the table. The goal is to get the happy medium of enough to improve the sound and not too much to remove quality. At least it can be removed if you put too much on.
Dynamat (and equivalent products) is a sheet 1/16" thick, with an adhesive butyl rubber layer and a thin aluminuim sheet. When stuck to surfaces it absorbs vibrations (there may be a more technical description of how it works). This is what you would use on a turntable.
I experimented with a version of Dynamat on a turntable. It can help, but be aware that putting too much on can suck the life from the table. The goal is to get the happy medium of enough to improve the sound and not too much to remove quality. At least it can be removed if you put too much on.
Sonic Barrier has a product much like Dynamat minus the foil. Makes it much easier to work with.
A friend that used to do car audio installations and used all the products out there told me to get "3M 08840". It's much easier to work with than Dynamat, no foil, had better performance than anything he tried and looks good as well. I was able to buy a single sheet from the NAPA online auto parts store, delivered to my local store for $13.50 for a 500mm x 500mm sheet.
BillWojo
A friend that used to do car audio installations and used all the products out there told me to get "3M 08840". It's much easier to work with than Dynamat, no foil, had better performance than anything he tried and looks good as well. I was able to buy a single sheet from the NAPA online auto parts store, delivered to my local store for $13.50 for a 500mm x 500mm sheet.
BillWojo
There’s always something like this: https://www.homedepot.ca/product/gardner-bender-duct-seal-1lb-pugs/1000406595
Local “audiophiles” have been using this goop for decades for very much this type of tweakery.
Local “audiophiles” have been using this goop for decades for very much this type of tweakery.