Anyone have recommendations for a decent set of feet for heavy amplifiers? I have some vintage SS amps from the 1970s that are heavy and the feet have deteriorated. I would like to find decent feet and I am not finding anything I really like. I checked Amazon, Parts Express and Mouser. I don't really want those black stiff rubber feet that are 5/8 in diameter and similar height.
The feet that are on the amps now are an inch wide and probably some sort of rubber...which has now cracked and become brittle. Any info or links to examples would be appreciated.
Thanks
The feet that are on the amps now are an inch wide and probably some sort of rubber...which has now cracked and become brittle. Any info or links to examples would be appreciated.
Thanks
Lots available if you can accommodate 40mm-ish (1 1/2").
Google amplifier / speaker isolation feet.
Or these arew smaller at 28mm -
https://www.ebay.co.uk/itm/28505753...eW+009Kf3D5timUc0NJ7+2qeg=|tkp:Bk9SR8aTyNvvZA
Google amplifier / speaker isolation feet.
Or these arew smaller at 28mm -
https://www.ebay.co.uk/itm/28505753...eW+009Kf3D5timUc0NJ7+2qeg=|tkp:Bk9SR8aTyNvvZA
Much depends on the weight. You may need more than just four feet, and they should support equal weights.
I'll look at the Parts Express feet again. But as I recall, it was just different diameters of rubber or rubber & plastic feet. I'll see what I can find elsewhere.
The stick on types aren't bad either from Hudson Hi-Fi. You got to know the weight of the amp so you get the right set.
Lots of choices here:
https://www.mcmaster.com/products/feet/bumpers~/
I find the stick-on types always eventually slide around, especially when heat is involved.
https://www.mcmaster.com/products/feet/bumpers~/
I find the stick-on types always eventually slide around, especially when heat is involved.
Home Depot has wide range of rubber feet. I did sub for a friend, and used four with normal wood screw. If you use any metal screw with nut, you should be able to replace old with new feet.
Antique Electronic Supply (a.k.a. tubesandmore.com)
https://www.tubesandmore.com/products/foot-rubber-1-x-56-steel-washer
https://www.tubesandmore.com/products/foot-rubber-1-x-56-steel-washer
This is what I usually use for amplifier feet: https://www.parts-express.com/4-Pac...Z4GNdSUWb4S-oviVgg49Comq1EPkql1exoV8EsElSIgKv
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My first thought when reading this is 3D printed TPU material could be tailored specifically to your needs. Not as isolating as rubber, but can be designed to your desired geometry. Just thinkin' a little out of the box.
Here's a couple examples when I was just foolin' around with different shapes to replace the hard plastic feet that come with the Modushop chassis. The internal structure is a gyroid infill which gives it some "squishiness" at 85% of the volume inside the outer 3 walls is air.
Here's a couple examples when I was just foolin' around with different shapes to replace the hard plastic feet that come with the Modushop chassis. The internal structure is a gyroid infill which gives it some "squishiness" at 85% of the volume inside the outer 3 walls is air.
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3D printed, including a channel to press fit a silicone o-ring would be cool. I bought an inexpensive assortment of o-rings from Amzn a while back and keep finding uses for them (behind screw heads for drivers, between amp frame and top panels, insulating RCA connectors, etc...)
In my prototyping I installed a big fender washer mid print to allow the bolt to be cranked crazy tight with no risk of pulling through the TPU. Ended up not being necessary, but there are some unique things that can be done with 3D printing. I'd be happy to mock something up in CAD and print a prototype if you can send a rough hand sketch with basic dimensions.
Here's a 3D printed insert that adds a little height and separates the hard hollow plastic foot from the chassis with soft TPU.
Here's a 3D printed insert that adds a little height and separates the hard hollow plastic foot from the chassis with soft TPU.
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