SpinFitCP155 for Wide and Long IEM Nozzle - L - Patented Silicone Eartips for Replacement (2 Pairs) (for Nozzle Diameter from 6-7mm)

These are the best eartips I've found. I put the on my pair of Moondrop Blessing 2: Dusk IEMs. These fit beautifully on the earphones and in my ear. They fit better than the stock ones, and a few other brands. These get the IEMs to the intended depth into my ear and make the headphone sound their best.

These eartips were a massive improvement in terms of seal and comfort for me with the LCD-i4. They stay put in the ear canal and seal really well. I use the large and medium Audeze stock eartips and ended up ordering the Large CP500's and CP155's. The CP155's are slightly smaller than Audeze's stock eartips. The large CP-155 is somewhere in between the large and medium Audeze stock eartips sizing wise. The CP155's turned out to be perfect for me. I think previous mentions of frequency response being altered are greatly exaggerated but YMMV. If anything, the CP155 performs admirably in comparison to the stock LCD-i Series eartips. It's like having a solid wall of sound that accentuates the best qualities of the LCD-i4. I'm glad I gave these CP155's a chance.

I use these with my IEMs, and the comfort is great. I do notice it will slip out if earwax slightly builds up, compared to stock eartips. However, these are worth it if they fit your ear.

These eartips create a much better seal in my ear than the stock eartips, and they stay in my ears much better. On the stock tips, the medium tips stayed in my ear with increased bloodflow noise while the small tips had no seal and fell out. The spinfit small tips stay in just fine and don't add the bloodflow noise.They do have one downside though: Their grip on my IEM is weaker than the stock eartips. I have the Moondrop x Crinacle Blessing2:Dusk, and at times I'll pull my IEMs out of my ears only to see that one eartip is missing from the IEMs. It's not too hard to fish out of my ears, but it is annoying nonetheless.

Using with Truthear RED and I found that these tips did not improve comfort of the IEMs very large diameter nozzle. The CP155 tips are too pointy at the proximal end and I need to shove them deep into my ears to get a good seal. This created pressure and soreness very quickly.Also, the mounting cylinder of the cp155 is too thin and flexible. The tips push back and ride up over the nozzle lip when inserted into my ears. The flexible "spin" feature of the tips then bottoms out on the nozzle opening and becomes rigid, just like the stock tips. I had to reposition the tips on the nozzle after every wearing.For me, Truthear Red needs a wide, "shallow fit" style tip to not cause discomfort. I'm using Hifigo x ZReviews render tips currently and they work much better with this particular IEM.3 stars across the board because they are great quality and design, just not a match with Truthear RED.

I notice very much difference sonically between these and the stock tips for the Audeze iSine LX, which is what these SpinFits replaced.I found that while I did achieve a better seal, and the fit into my ears more comfortably, the sharper taper at the end of the nozzle irritates my ear canal. It almost feels sharp in there? Even so, these are easier to get into my ears comfortably compared to the Groovy Fit Tips, and they stay in my ears better than the regular smooth silicone tips.Note: I was surprised as my ear canals are generally Medium sized in regards to tips, but iSine's really only stay in my ears if I use Large Tips + the black ear clips. I thought I had pretty average sized ears, perhaps with wider than average ear canals, but still. There only seems to be a 1 mm difference between the sizes of these SpinFits however, so it's harder for me to accurately recommend which size would work. I'd say stick with whatever size stock tips you were using and check measurements to get as close as possible to the wide-end outer diameter.Anyways, I do recommend these for the Audeze iSine LX as a decent replacement for stock if you don't like the stock tips, or if they wear out.

Measurement was wrong. My earbuds were around 5.7mm so I figured the advertised 5.5 mm would work. But turns out they're bigger than advertised. They also don't fit in my case.

Before I got these, I had to very slowly put in my IEMs and wait for a few minutes for a burning sensation to subside, and if I adjusted the fit after I had gotten used to the feeling, it would start to hurt again. These go in incredibly easy but still make a good seal with my ear canal.I can't tell any difference in noise isolation or frequency response personally, but my hearing is not outstanding so if you're sensitive to that sort of thing you may notice something that I'm not picking up on. For my money this is a slam dunk purchase, cost a fraction of the IEMs and makes them wayyyy nicer to use. My compliments to the creators!