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It’s the groove in the inner bore that makes the difference: it grips the lip of the nozzle much better than the usual smooth eartips and this provides better comfort, as the tip is more stable, while also providing a more uniform sound quality across earphones: the distance between the sound port and the end of the eartips is constant, so you get the optimal distance that SpinFit found. Speaking of sound, I find the CP500 to be neutral as they don’t modify the sound significantly – for better or for worse. 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. Soundwise, the CP155 are neutral and I can’t hear significant differences when compared to the CP100. If anything, the better seal allows bass to get further down, but it’s a minimal difference which is highly dependent on the earphones you are listening to. SpinFit CP240
Accidents, abuse, misuse, improper installation, problems with electrical power, acts of third parties. Eartips are a very personal thing. There is no good or bad in most cases, there is good fit and lesser fit, which depends on both the devices they are mounted on and the listeners’ ear canals. These variables create a large number of possibilities and uncertainties so that no eartip is fitting universally. These variables are:Munich, Germany. Head-Fier since 2019. Mostly lurking around r/headphones as u/kmmbd and a very active member in local head-fi community since 2015. Got into head-fi in mid-2019 under the username kmmbd, and has been reviewing audio gears sporadically on his personal Medium blog since 2018. His introduction to portable audio was through a Walkman cassette-player in his pre-teens, and music has been his getaway ever since.He harbors a minor OCD regarding the tagging and organization of his music library (which is all digital on a local NAS). Also, spends too much time custom-theming his desktop Music Player for no apparent reason.In real life, he’s a Bangladeshi living in Munich and currently doing his MS in Computer Science, majoring in Computational Biology. He’s a penchant for the academia and research, though life is strange so he’s still unsure how things will turn out in the long run. That preamble aside, the CP-500 has a soft flange along with a similarly soft bore. The flange also has a somewhat oily texture to it, resulting in a fit that’s not the most secure and requires a bit of a deeper insertion. It’s a very comfortable eartip but isolation is worse than the CP-100/145/360. This is an eartip I’d recommend if you’re someone who’s into “tip-rolling” (as in, experimenting with various eartips). The CP-500 provides interesting results with many IEMs. For neutral tonality with emphasis in bass, midrange and vocal. For clarity and bigger soundstage, choose CP-240.
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.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.
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 Here are the wired earphones I have in my collection and tried them with the CP100. Sony XBA-4 with SpinFit CP100Some earphones come with a generous selection of eartips, others don’t. And in some cases, none of the eartips fit or provide an effective seal for the listener, so that the sound quality is compromised. In such situations, third-party eartips come to the rescue. The CP100 puts a litte more bass into the Sony XBA-4. And since the XBA-4 is already strong in the tweeter, this ear tip offers better musical balance. SpinFit CP100 with Sony XBA-4 Sennheiser IE 300 with SpinFit CP100 The SpinFit CP360 provides a comfortable fit with its high-quality silicone ear tips and perfect seal. The optimal seal brings better bass performance and smooth treble frequencies. The soft and flexible silicone material provides a high level of hygiene and long-lasting comfort. They are made up of medical-grade silicone material. Wide Compatibility:-
Damage due to user negligence, accidents, disassembly, waterlog, misuse, abuse, alterations or vandalism. 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 CP360Let’s look at the different SpinFit models, and compare how they fit on a selection of IEMs. Note that the sizing within each model (Small, Medium, Large) only affects the width of the flange and how that fits your ear, and does not affect the size of the bore or how well they will fit on different IEMs. CP100/CP100+ 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.
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