SpinFit CP100-S - Silicone Eartips Replacement for Universal IEM Earphones - 2 Pairs - 4mm Nozzle Diameter (Small)

Product Information

mm longer than CP-100 and CP-145, the additional length and bullet-shaped caps of the CP-155 allow deeper insertion to bring more bass and fuller vocal. With 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.

The SpinFit CP800 were the only ones I could not try due to not having compatible earphones: they are made for super-thin nozzles like those used by Shure, Westone and Etymotic. At just 2 mm wide, the inner bore is too narrow to house earphones with 4 mm nozzles (believe me, I tried). I will update this review as soon as I lay my hands on compatible earphones, but I expect them to behave exactly like all other eartips in this list. SpinFit CP1025 Among the rest, the CP-360 should be in your stable if you’re into TWS earphones, they are one of the few TWS-specific eartip after all. The CP-500 is a specialist eartip that can be unpredictable, and being the widest-bore tip in Spinfit’s lineup offers something unique. Finally, the CP-240 is something I couldn’t find a use for and the CP-800 didn’t perform as well as the tips it’s supposed to replace (for me). So these two don’t excite me as much.The SpinFit CP100 are the basic model, which by shape and feel most closely resemble “standard” eartips. They are conical (a wide ogive, to be exact) and offer a diameter of 4 mm which fits most earphones (including the Campfire Audio Vega 2020 and Dorado 2020, the Thieaudio Legacy 4, the Tin HiFi T2), but which is also a bit tight for earphones with larger nozzles. Still, they’re the ones that will probably fit the larger number of earphones, as they do just fine even with those that have a smaller nozzle like the Legacy 4. They come in 5 different sizes: SS (XS would have probably been better), S, M, L and XL.

For neutral tonality with emphasis in bass, midrange and vocal. For clarity and bigger soundstage, choose CP-240. The Spinfit CP-100 is probably the most popular Spinfit eartips around. They are also the most widely available one. The original CP-100 model had a fairly stiff, color-coded stem (with color changing upon size) and the outer material was also fairly stiff. This model suited a number of IEMs especially those with a shallow nozzle (e.g. Dunu Luna, pictured below). The CP-100 was pretty much a utilitarian eartip, as in it would suit most models without affecting the FR too much or causing discomfort. I personally found the surface of the tip to be somewhat itchy after long-term use, and the stiffer outer layer didn’t have the best grip with the inner-ear wall. Be inserted deeper into the ear canal, enabling less obstruction along the sound field dispersion path.In this round-up, we shall explore how well this mechanism works across a variety of IEMs. Models to be evaluated: Spinfit CP-100, CP-100+, CP-145, CP-145 (medical-grade silicone), CP-240, CP-360, CP-500, and the CP-800. The only two in-production models that I don’t have with me are the CP-155 (I don’t have a large-nozzle IEM at the moment) and the Airpod-specific CP-1025 (I don’t have an Airpod). With that out of the way, let’s head right in. 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 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. The peculiarity of the CP100 is that they are tall (9.9 mm), but they are actually quite wider at 13.3 mm. This means that they won’t need to go very deep to seal off your ear canal and therefore will also be fine for earphones with short nozzles. Thanks to this good seal, bass is well extended and controlled, while the rest of the range comes out as well balanced and with no particular colouration and the same sensation of good control as in the lower area. As a whole, the sound is mostly unaltered and this also includes the “bad” side of this, as the tips won’t reduce peaks e.g. in the treble area.

Eartips of the different makes are rather complementary and listeners have to acquire a box full of different types before “tip rolling” to find the best sound appeal for their individual ear canal geometry. So third-party eartips companies must be the best of friends. The main difference between the W1 and the other eartips by SpinFit is the dual-density silicone used to make the inner bore. It has a wave shape, hence the name. This makes the inner bore stiffer, plus it also makes it easier for it to grip earphones’ nozzles and therefore offers more stability. It is therefore advised to use the W1 for especially large and heavy earphones, as it will be difficult for the tips to come off.

SpinFit CP800

While the SpinFit silicone tips do not provide the most bass impact or authority, they offer a higher level of refinement compared to the Symbio W, Shure Olive & Final Audio E-tips. The Symbio W hybrid tips offer the most contrast here with a more impactful bass and energetic treble. However, the SpinFit tips really master the treble with detail and control that the other silicone tips do not possess. Some 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 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