Preffair Adjustable Turntable Feet Stainless Steel Speaker Vibration Isolation Spikes&Pads Subwoofer Floor Protector Shoes Mats Amplifier Vinyl Record Player Shock Absorber Base 4 Sets

I can't say that I have any dislikes about them. A little bit bigger as if round wise, but the height in how they're built are great. They're very well built and I highly recommend them. I got them underneath my amplifier I've got a vacuum tube amplifier that vibrations can mess with the sound and I got two subwoofers and one on each side and two Klipsch Tower speakers and they work very well. They cut out the vibrations. You're looking for something to cut out vibrations for a cheap price. This is itThis is an update. If you have a tube amplifier, do not use this because it causes vibration. Sounds to go through your tubes right into your speakers. I was using it so that way the bottom of my tube amp can get air cuz it's not very much of a lift. It's only off the table by a quarter of an inch so I use these to lift it up higher so that'll weigh plenty of air can flow in well. Don't use these. You can't hear it too much when you're watching TV or when you listen to loud music on Spotify. But at the very minute you use at turntable you can hear vibrations bad. I couldn't figure it out because they're made to stop vibrations but as soon as I took these out the vibration stopped. Other than that, if you want to use them for a subwoofer then go for it they're great!

Installé sous ma table tournante, ça a changé tellement l' isolation que je peux sauter dans le salon, claquer la porte et la musique continue sans soubresauts! Très esthétique aussi.

I purchased 2 boxes of 4. I wanted to see if these were a cheaper alternative to Isopuck was worth it. I opened the box and each unit is made up of two parts, which are not connected together, you just let the top part sit on the bottom part. Keeping them horizontally level was very delicate. I could see no ability to isolate any vibration. I am returning them and going back to the good, but over-priced, Isopucks. If I am missing something, please let me know. They are so much more economical than Isopuck.

Could not get a satisfactory tuning of my subs to the rest of my 5.1 system. I suspected sub was coupling to the floor. Isolation spikes did what they were supposed to do, now have great clean sub base. Before I had to reduce the sub volume by 9db. When I installed the Isolation Spikes, I had to increase the sub volume, which brought the entire surround system into balance. Absolutely wonderful. Now base frequencies are clear distinct and accurate and properly aligned with my main speakers. They are well made and worth there price.Note to negative reviewers: trying to mount them under the already installed feet will not work, I tried that, and will will make your devices unstable. It even moved tore the rubber pads from the isolation device. Remove the feet from your sub/turntable/speakers, and mount the isolators to the FLAT surface of those devices. Forces from my sub where such that it rotated the sub. Now with the isolators the sub stays in place. All in my first review are still valid.

Ok, I’ll be the first to admit I had serious doubts that these would resolve my issues which were two-fold: (a) my equipment is cabinet-top mounted (on Ikea Besta cabinets; don’t get me started on that) and (b) the floor immediately beneath the cabinet is very sensitive to vibrations despite being carpeted. Every time I walk past my gear my turntable cartridge jumps and skips. So I always have to practically tip toe around it. Annoying.Chose the silver spiked set to decouple everything from the surface and from each other (only used 3 of the 4 sets included and have them in a triangle formation based on the front-to-back weight balance ratio of each component. 2 sets for the analog equipment—1 set to decouple the phono preamp from the cabinet top, 1 set to decouple the turntable from the phono preamp. I chose the black spike set (in similar triangle formation) to decouple my Bowers & Wilkins speakers since my current setup doesn’t permit stands at this time.Oh my god!! It did the trick. I can practically RUN past the cabinet and NOTHING is affected by it any longer. All resonances have in effect been eliminated (at least audibly so). Did the same for my tube integrated amp since all the various Auralex bases I used were literally sucking the sense of air and warmth from all playback. It’s like listening to all-new gear again as it relates to clarity.Now, why am I only giving it an overall 4 stars out of 5?? One reason only: the silver spike set only came with an anti slip pad for ONE of the 2 pieces. That is absolutely ridiculous. A total brainless move. You need them BOTH padded, folks. Take my word for it. What’s an extra 25 to 50 cents tacked onto the cost to do it right from the jump?!! Honestly, what were they thinking? I almost returned them (perhaps this is why Amazon indicates that these are frequently returned). But then I went into my trusty accessories stash and pulled out a few sets of rubber disc pads I had on hand that fit absolutely perfectly and used them for the 2nd piece (what I had on hand was very similar to what comes with the spikes, fortunately. This not only kept the equipment from slipping, each surface was firmly kept in place. Problem solved. But it’s inexcusable that I had to get creative in a pinch like that. Ugh. Do better, manufacturer—c’mon now! That aside, I whole heartedly recommend these spikes for decoupling and resonance control. Just be prepared to have extra rubber anti slip discs at the ready to compensate for this rather glaring omission. Otherwise, it’s a great product.