4Pcs 40x20mm Speaker Isolation Feet Single-sided 3M Adhesives Speaker Spike Pads with Non-Slip Rubber Rings for Audio,Speakers, Subwoofers, Home Theater, Turntable DAC Feet Pad(Black Color)

I recently bought some new amplifiers, to make rear access easier and to increase airflow around the amps, I wanted additional space above the shelf, and between the amps. I searched for taller feet than what came stock, but about 20mm (3/4”) is where most top out. So I asked if these could be stacked and indeed they can. I bought two sets of four for each amp. This also required me to buy longer screws, but the feet easily accommodated the change. At first I even tried putting the manufacturer’s feet as a third set on the bottom amp (you can see the solid black puck on the very bottom in the second picture), but that made the top amp too high, so I decided on the original plan of two sets for each amp. I used 35mm (1 3/8”) screw lengths for stacking two pucks, and 50mm (2”) for three, my equipment required M4-0.7 machine screws, but you’ll want to match the size and thread for your gear should you decide to stack them. The included screws are stated to be (metric) M4-0.75 x 14mm, as they were too short for my purpose I didn’t try them. The feet work great and space my gear perfectly in the rack, this makes it easier to hookup the many cables in the rear (14 channels between the two amps), the extra space also allows for cooler running equipment which makes it last longer. I find these feet attractive, and an upgrade from the manufacturer’s original aluminum feet (though after I panted those black they also looked better). As it turned out, I probably could have gotten by with one layer of these feet, and the original feet pained back on the bottom, but my end result looks slightly better. So all in all I recommend these feet for single, double, and even triple height configuration. My personal (experienced) opinion is that feet of this type do not affect the sound quality of electronic equipment—like Amps, Receivers, CD/DVD players, etc. I also don’t think the small and fairly dense rubber ring is going to ‘decouple’ a subwoofer from the floor; the original feet or a specialty product like the (much more expensive) SVS SoundPath, will likely do a better job, but every situation and piece of kit is unique. This is an attractive, simple, well made product at a fair price.

Outstanding quality at a more than reasonable price point. The feet are not only attractive but are also substantially heavy. The optional 3M carbon fiber pads add additional isolation properties. The screws are M4 NOT M3. I advise using clear silicone adhesive under each foot and on the threads of the screws. This step adds additional isolation properties and prevents the screws from backing out.

Like the look and functioned as expected. Used these on my tower speakers but the screws were too small for my speakers, they are M4 and I needed M6’s. Tried drilling the hole larger to accommodate M6 bolts I had laying around but the heads were too large to sit inset so I gave up and attempted to use the included tape but it’s one sided, odd? I used gorilla double sided tape and worked fine. I would suggest including two sided tape and a couple different size screws.

These speaker isolation feet work well and are easy to install. I put them on my homemade speaker and used some separate wood screws for that. I bought these feet because others didn’t seem high quality or didn’t look nice. They help a lot with vibrations and are nice and sturdy if screwed on correctly. My speaker is a little wobbly but that is since the board I used was slightly warped. 😅 They come with sticky rubber pads that go between the legs and your device which help quite a bit. Overall a nice, good value product!

Bought these to replace the feet of my active subwoofers. They look amazing, sturdy and of good quality. One reviewer mentioned the adhesive pads they come with are not double sided, however, these are supposed to be screwed in, not attached with adhesive. The pads that come with them are meant to produce some friction between the feet itself and the bottom of whatever you are screwing them to, therefore, the adhesive part faces the upper part of the foot. In my case, I had to get screws suited for wood, since the cabinets of my subs are made of MDF (Middle Density Fiberboard) and the screws they come for are for a different application that may or may not suit your needs. Since you can use these for a variety of applications, it is highly likely that you will have to get different screws. Also make sure they provide you with enough clearance for ventilation, etc. My subwoofers have down firing ports, so it was imperative to provide the same clearance from the bottom of the speaker to the floor as the original feet. For those that are not comfortable using metric, there are two sizes, both are 40mm in diameter which is roughly 1 9/16", and the heights are 15 and 20mm which is 9/16" and 3/4" respectively. I haven't had the need to do so, but I believe these are stackable, provided of course you use longer screws.

I purchase some of this feet in the past and the came well packaged in its box with screw and 3m double side tape. This time I received a used item with no screws or double side tape. Refer to the pictures. I do recommend this feet and it’s a great product. I had request a refund and new item to be send to me

A great value. We are replacing the artificial stanchions on the tops and bottoms of the base's on speaker stands with these. These are the same OD so they fit perfectly. These are well made and add a touch of class to your components .Arrived quickly and were well packaged. The 4 bolts provided are random so you may not be able to use them. Very pleased with purchase

I've bought a few sets. I used mine on a Home Theater PC (HTPC) and CD player to 1) improve air flow and 2)prevent the cheap rubber feet from melting onto the furniture, as they are prone to do. The added benefit was making my PC look more like a piece of stereo equipment. (see photo's). While you can attach these with supplied screw, they do an excellent job just with setting the feet up and resting the component down - I have not permanently attached mine in any of my uses yet. I also feel my amp and breath a little easier now as the CD player has more clearance. Sonic improvements are subjective and too varied to make claims. You have to just try them on your own system. I would prefer a larger disk of 55mm or more for use with a turn table. At first I thought they might be a little too small, but after placing them, I think they are fine for the job. I would need a vastly more advanced system and environment before I feel a more advanced foot would benefit in any way other than esthetics. If you are looking for replacement feet for a piece of equipment that had more than rubber nubs, you probably want to look at a better item than this. But if you just need some space for improved airflow, or your little rubber button of a foot tore off or is starting to melt, or, you just want feet that look better than rubber nubs, this is a definite improvement. I bought a few sets, and will probably buy a couple more for a few other applications.

Great quality indeed

Good quality, solid construction and an excellent replacement for the rubbish feet on my Compact Disc player, DAC and Amp. They came with screws which were unsuitable for the job, but I had a pile of 3M pads that did the trick. Worth every penny.

do improve sound

They're cheap but I can't tell if they make a difference. At least the speakers sit off my timber floorboards.

Screws didn’t fit my speakers so had to buy correct size, otherwise look good and work well on hardwood floor