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Sound-wise, there is better bass performance than the Comply Foam while the upper treble remains clear. Sennheiser Momentum True Wireless 2 with SpinFit CP360 The AZ70 has a neutral sound with the original ear tips. With CP360 ear tips, the bass improves in the meat which makes the AZ70 a little more enjoyable. SpinFit CP360 ear tips with Technics AZ70 Audio-Technica ANC300TW with SpinFit CP360 A small note: I am going to compare the various eartips using the “L” size as reference, so you will need adjust that to the size you are interested in as the purpose is to give you a frame for comparison, not to describe every possible size and combination.
SpinFit’s double-flange tips offer further levels of sound isolation with an even superior seal compared to the flange tips. Again, they are a good fit for poorly isolating in-ear monitors without compromising on comfort during prolonged listening sessions. CP100+ Ear Tips Comfort levels are similar although the new material is said to be even more friendly for those with susceptibility to allergies. Overall, the CP100+ offers some welcomed improvements to the already stellar CP100 and provides even more choice for the IEM enthusiast. Comparisons It’s not only a matter of comfort: the CP145 prove to be great at passive isolation as well. As they seal off the ear canal quite well, the side effect is also that there is an almost-perfect level of isolation. Although the overall isolation is of course dependent on the earphones as well, these eartips make a real difference and shut most of the noise out. SpinFit CP155 These are currently my favorite Spinfit tips. They are the most comfortable in Spinfit’s lineup along with the CP-100+ and pairs well with most IEMs with the given nozzle size (~4.5mm). Usually the bass seem to get tighter with these tips on and in some IEMs I’ve also experienced a perceived expansion of soundstage. The older CP-145 has a more supple, grippier texture on the outside whereas the new, medical-grade silicone version has a more coarse texture and has slightly worse seal. The choice between older and the newer CP-145 isn’t as straightforward as they both perform very similarly and are equally comfortable. Whichever you get, however, you shall find them stellar. The SpinFit CP360 are the first tips SpinFit developed specifically for “true wireless” earphones: they’re much shorter than the others because they need to fit in the cases, which often offer very little space for eartips. This means they can’t count on the depth of the insertion to give you isolation and have instead to rely on width: the ear canal is larger at the entrance and so these eartips need to be wider to seal it. In fact these are among the few SpinFit models to offer an XL size (on top of L, M, S and SS) and that’s because of this. The L size is 13 mm in width and 8.5 mm in height, while the XL is even larger at 14 mm wide and 8.5 mm high. They are basically shorter CP100! That’s also true when you look at their shape, which is similar but more compact. The inner diameter is 3.6 mm.I did a comparison on the Sennheiser IE300 with the CP100+ and CP360. My ears detected the following characteristics: The CP145 seem to tame bass a tiny bit to give a small boost to the upper midrange and to treble; mind you, we’re talking about a difference that’s not major and is in fact relatively minute. In other words, you won’t be able to make a warm IEM a neutral one, but you will notice a smaller difference compared to other tips. Overall my sensation is that the CP145 deliver a wider soundstage, probably thanks to the larger presence in the upper area, and more accurate imaging compared to the CP100. They still deliver a generally neutral signature.
As a last bit, the silicone is actually medical grade, so the added benefit is you shouldn’t have issues with allergies and other adverse reactions. SpinFit CP500 While there are several ear tip companies in the IEM space, SpinFit aim to define the niche with: supreme comfort, an optimal seal, enhanced sound quality and simple installation. Ear tips are an often-underrated component when choosing the perfect personal audio set-up. They have the ability to fine-tune and even tilt the sound signature of in-ear monitors without the use of aftermarket cables. The CP240 has a wide bore and fits comfortably on larger nozzles, but it also comes with a selection of adapters that allow it to fit snugly on smaller nozzles as well. CP360 and CP1025With the CP100, the Aurvana Trio’s mid-treble sounds a little harsher, while the midrange is slightly less articulated. I attribute it to a more filling bass and harmonics which somehow influenced the texture of the instruments, making them less clean. Eartips do make a difference in our listening experience. They may not always have an influence on sound, but they do change the way you wear your earphones and this makes all the difference between listening to music while being comfortable and doing so while swearing against the pain in your ears. The SpinFit line-up is quite complete and gives you a lot of choice to get the eartips that better suit your needs, from very deep insertion to a very shallow one. All of them offer a great level of comfort, thanks to the soft silicone and to the incredibly clever design SpinFit came up with. SpinFit eartips are a game changer and can completely change (in a very positive way) the way you experience your favourite earphones. The basic idea underlying every SpinFit eartip model is the following: traditional eartips have a straight solid core at their centre which stays so independently of the actual shape of the ear, but it would be better if the core could bend and follow the curves of the ear canal. This is what happens with the SpinFit tips: there is a point in which the silicone is thinner and therefore softer and it’s shaped like a doughnut, so that it can bend and provide better comfort. They’re quite comfortable and in fact I find them to be slightly more comfortable than the CP100, because they fit more snugly in my ears. They’re the closest equivalent I have found among silicone tips to the sensation foam eartips give me: that my ear canal is sealed by something that fits snugly in it while respecting its shape and boundaries. In other words, it doesn’t feel like something that gets inside my ears while trying to impose its presence, asking my ear canal to adapt to it, but it feels like something that fits in the canal trying to take the space in there and nothing more. It’s a weird sensation that’s very difficult to describe, but I hope I somehow gave you an idea. The Spinfit CP-240 is their only dual-flange offering. Usually dual-flange tips offer a deeper seal along with improved isolation. The CP-240, however, is a strange case. Due to the larger gap between the swiveling part on top and the second flange below, the seal breaks inside the ear canal and may lead to a loss of isolation. Moreover, the bass response lightens up a lot as a result. This might help if you want to tone the bass down on some IEMs but for me this particular tip didn’t really have a permanent place on any of the IEMs I’ve tried them on. The CP-240 also comes with adapters that you can slot inside the bore to reduce bore size and use narrow-bore IEMs like Etymotic/Westone/Shure.
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