SpinFit’s tips are an excellent addition to an audiophile’s inventory with real sonic improvements, exceptional ergonomics and a transparent delineation of sound. The SpinFit silicone tips especially excel in texturing & resolve of the bass, articulacy of the midrange and a detailed yet restraint treble section. From the perspective of comfort, although they’re nowhere near the level of triple-flange tips, it still takes a bit to get used to them. They’re much longer than the other earphones and therefore get deeper in your ears, which may be a bit unsettling. I found it’s also a matter of inserting them at the right angle, as otherwise they become very uncomfortable and don’t sound good. If you get the insertion right, though, you get a great level of comfort. I find it inferior to the single-flange tips, but great for dual-flange ones. SpinFit CP360 The midrange of the SpinFit tips does sway towards the leaner side of the spectrum with more defined transients. Compared to some of the better foam tips (True Fidelity & Campfire Audio’s Marshmallows), the SpinFit’s silicones are more neutral-orientated at the expense of the more rounded and softer impact that the former tips render. Treble Thank you for writing this up! I have extremely small ears due to a condition called microtia (I have a very mild case), but most extra small eartips are too large for my left ear. The Spinfit 100s are the closest I’ve found to being comfortable, but they feel too deep in my ear. Based on your article I think I’ll try 145s or even the 1025s out since they are shallower.

On the whole, the SpinFit CP100 does improve the bass presentation slightly, so it’s something you should consider if you needed that little more bass extension. SpinFit CP100+ (Preview)

SpinFit CP500

SpinFit have adopted a simple yet elegant underpinning their ear tip design. There is an ergonomic concave design at the core which allows the ear tip to swivel. While conventional ear tips do not always direct the sound to the eardrum, SpinFit aim to maximize this with their patented 3D axis. The CP240 is a double flange eartip. Double flange eartips are useful for listeners who have larger ear canals and have a hard time getting a good seal. They can also provide improved isolation in general. On the CP240, the SpinFit pivot comes in between the first and second flange, to provide flexibility at the top for the second flange.

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 Customers have to bear any form of custom/import/processing fees that are applicable for your parcel. Here are the wired earphones I have in my collection and tried them with the CP100. Sony XBA-4 with SpinFit CP100 In my experience, earphones fall out when the tips are too small, but if they are way too big I can understand it happens when they are too large as well.

SpinFit CP800

I don’t hear significant difference when I fit the Sennheiser MTW2 with the CP360. Perhaps it’s because the MTW2 is already quite bass-heavy. The earbuds could not stay flushed on the ears due to the longer ear tips. SpinFit CP360 ear tips with Sennheiser MTW2 Technics AZ70 with SpinFit CP360

Supreme comfort– Premium soft silicone material along with the ergonomic design provides outstanding and lasting comfort. 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 SpinFit told me that the silicone in this case is “edible grade”, so even though it’s probably best to not put these over your pasta you probably won’t have any allergic or otherwise adverse reactions to it. SpinFit W1 This applies for most countries. However, large items such as headphones and desktop DAC/AMPs (e.g. HarmonicDyne G200, MUSICIAN MDP-2, and etc.) are excluded. SpinFit tips offers a crisper and well-defined higher frequency range with plenty of detailing and articulacy. Compared to MandarinE’s Symbio W hybrid tips, the SpinFit offers extended highs without the harshness and sizzle that the former tips can bring forth. This can also be seen when the SpinFit tips are compared to the Shure Olives tips – there is a good level of restraint without hiding any micro-details or imagery.Passive isolation is quite good, too: probably due to the relatively deep insertion and wide dome, the SpinFit W1 are quite successful at sealing off the ear canal and therefore offer great isolation. Final Thoughts CP360 and CP1025 are designed for TWS earphones. CP360 is designed to provide a deeper fit, while CP1025 is more shallow. While both will fit on most TWS earphones, some charging cases may not be compatible with the CP360. CP1025 is also available with adapters for Apple AirPods Pro and Samsung Galaxy Buds Pro. W1 The wearing experience is very similar to the CP145, but due to the additional stiffness they can feel a bit more fatiguing during long runs. While the dome is made of the same silicone, the different inner bore has a small impact on comfort. The SpinFit CP100+ (or CP100 Plus) are the exact same as the CP100 in terms of size, but they are made with a different material. They keep the same diameter of 4 mm and the same variety of sizes (SS, S, M, L, XL), but they are made of medical-grade silicone and feature more subdued colours and a more transparent dome.

Optimal seal– Consistent optimal seal even for headphones with an awkward insertion angle, allowing increased noise isolation. 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. The SpinFit CP100 works across a range of in-ear monitors including but not limited to: the 64 Audio Tia Fourte, 64 Audio Tia U18 as well as InEar’s ProMission X and Campfire Audio’s Andromeda 2020. In general, they offer improved levels of transparency and a linear neutrality compared to other silicone tips. However, their crisp nature does mean that they are a bit leaner when evaluating note size. Thus, they may not be the best choice for already thin and exacting IEMs.

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. Third-party eartips are one of those things that you end up with a large collection of as you fall deeper into audiophilia. The reason is quite simple: universal earphones (i.e. non-custom IEMs) require fiddling with the tips more often than not. Moreover, eartips are just about the cheapest (and often most reproducible) way of tuning an earphone. So we all end up with boxes of eartips of our own, sooner or later. W1 offers a similar fit to CP145, but updated materials and design to generate less pressure inside the ear while delivering a secure fit and seal. The SpinFit CP145 are much like the CP100, but they have a smaller top so they go better inside the ear. The difference is not dramatic in terms of size, but the fit is quite different. The general shape is again ogival, with a height of of 10.1 mm and a with of 13.5 mm. With an inner diameter of 4.5 mm, the CP145 can fit earphones with nozzles up to 5.5/6 mm in diameter: that means that even IEMs with larger soundports, like the Tin HiFi P2, Shanling ME500 Platinum, Fearless Audio S10 Genie or Moondrop A8 will fit correctly, though the silicone will stretch a bit. There are just three sizes: S, M and L.