Easy to install and beautifully finished. would recommend them.

CM1の純正スタンドに付けた。スタンド自体が古いのかネジの精度が悪いのかよく分から無いが、簡単に入らず、潤滑油を入れたり苦労した。音は、元々良かったので、僅かしか変わらなかった。ただリスニングの位置が高くなり丁度良くなった。

I used this for a heavy equipment rack. Easy to install and the tip adjusts to level the speaker or stand.

I hate to be a copycat so I'll start by referencing J. Glotzer's review, above. Everything he says is right on. They are expensive but when installing $1,500 worth of subwoofers and expecting the best possible from them then you should consider them a cheap investment - I wouldn't hesitate to buy them again. They isolate sound very well and produce a rich, tight bass (at least they do on my NHT subwoofers).I've purchased a lot of components from Dayton Audio. They are a reliable supplier of quality goods. I give them a 4-star rating.

You need some sort of spikes if you have a subwoofer on a carpeted floor. These spikes definitely helped somewhat and made the bass a little tighter on the subwoofers I tried.Height of spikesThe speaker spikes are tall enough that they cut through shag carpet. I live in an apartment and it looks like there probably won't be permanent marks on the carpet when I leave, especially if I move the sub woofer a few inches every few months. If you use the little metal caps on the carpet placed underneath the spikes, they will make a deep mark in the carpet over time, so I just put the spikes straight into the carpet.I installed these spikes on two different sub woofers so I will write about both experiences:Sub 1 is an old AR Downward Firing 12 inch with 120 Watt internal ampInstallation in the AR SubwooferThis sub had threaded inserts for these and so installation was very easy. If you have threaded inserts then I definitely recommend these speaker spikes. They screwed right in and then you just need to adjust the build in height adjusters to even the weight between the four corners.Sub 2 is a Polk with a 10 inch woofer and 50 wattsInstallation in the PolkThere were no inserts. This means you need to:1. Pretap holes with a fairly thick drill bit into the bottom of your speakers or sub woofer.2. Screw in the inserts with a screwdriver, similar to screwing in a wood screw.3. Thread in the post.4. Thread the actual Spike on to the post.5. Adjust the height using the built in adjusters to even the weight on all four spikes.Trouble with the cheaper Polk sub:While drilling in the inserts that came with the spikes I accidentally drilled all the way through the floor of the sub in two of the four spikes and I'm millimeters away on the other two. This is very easy to do as the inserts are fairly deep and I only had 2 millimeters of margin to get them all the way in. Also this Polk sub woofer is made of particle board which disintegrates as you drill into it. Once I installed the inserts and put in all the hardware it seems like it plugged most of the holes, but would still have a very small air leak and might still affect the sound.Overall I would not recommend these for installation on sub woofers or speakers with cabinets made of particle board covered in sheet wood. These ideally need to be drilled into a piece of solid wood in order to not effect the integrity of the cabinet.Affect on Noise to units below you:In my upstairs apartment using a downward firing sub woofer, it's no help on noise control to the apartment below. It sends bass down and it goes right through the floor. The half inch of clearance does nothing.If you have a front firing sub woofer, it is better to begin with, and it helps even more to have the sub on spikes. The spikes help keep the cabinet itself from rattling the floor as much.ConclusionThese are good if you have shag carpet. They improve the bass by making it tighter and by avoiding losing it into the floor. If you're going to use these, have a speaker or sub woofer with inserts for spikes already built in, or have an older high quality sub made of real wood, not particle board. Otherwise, if you have a particle board sub woofer, I would recommend a different brand that doesn't drill in so deep into the wood, possibly even stick-on spikes.

I ordered two sets of these on the chance that they would fit without any modification to the speaker cabinet. They do fit. The parts included, 4 M6 screws and the spikes thread right on. The color of the spike is not "pitch black", more of a "tinted chrome". I think these will do fine.

Very high quality and good looking, chose the black chrome since the sub was black.Extremely satisfied with the product and Dayton!!!

I have a down firing sub woofer on thick carpet that underperforms. My solution was to affix these big spikes to the underside of a heavy patio block on which sits the sub. The spikes transfer the unmuffled sound right to the subfloor. No more mushy bass.Good quality components in this spike kit.

I know Dayton makes turntable spikes, but honestly, they didn't look quite 'right' to me. I got these instead, screwed 'em in and sealed 'em on my Kenwood KD-2055 turntable with some contact cement, balanced and rotated everything and it sounds incredible. Less surface noise, clarity I have honestly never heard before, tightness all around.First I popped on the Sundazed reissue of the first Monkees LP (cuz I'm a Monkee Geek)- first track was "Saturday's Child"- I first noticed the 'inky black' background and I felt my heart race. Then the drums and guitars kicked in and I got a buzz from it. Micky's vocal seemed like he was right there in front of me! I've been a Monkees fan since January of 1986 when I was 13, had this song on countless cassettes, CDs, LPs, 8 track and even reel-to-reel, and this song has never ever sounded so good.Next was my biggest problem LP- John & Yoko's "Milk & Honey"; "You're the One" seemed to mistrack horridly to my ears, even after all the upgrades- but it sound better with each addition. Now? No mistracking at all. What I'd thought was mistracking on Yoko's vocal was actually some sort of reverb. Granted, it's foolish 1980's reverb, but her vocal sounds a lot clearer than it did before.Now I'm grooving to the mono Simon & Garfunkel's "Parsley, Sage, Rosemary & Mrs. Lowery's Seasoning Salt" (!!! LOL) and though it looks like it went thru 'Nam under someone's boot, there's very little surface noise and clarity that wasn't there before (yeah, I say that alot here).And yes, the "Saturday's Child" buzz hasn't worn off yet. :-D