It’s a known fact that ear tips can alter the sound signature coming out from the earphones. Generally it has got to do with the shape of the ear tips, the thickness of the silicone, the diameter of the tube, and the level of seal. SpinFit is a brand who produces patented ear tips since 2010. It features an ergonomic concave design at the core to allow the ear tip to swivel, making it flexible to bend and twist to the contour of a person’s ear canal.
On their official website, they listed a handful of products designed for various in-ear monitor (IEM) earphones based on the construct of the nozzle. For this review, they sent me the following eartips:
- CP100 – fits the most number of IEM which usually has a 4-6mm nozzle diameter.
- CP360 – fits most true wireless earbuds with a nozzle between 4 – 5.5mm.
- CP1026 – designed for Apple AirPods Pro.
Also on sneak preview is the CP100+, an improved version that is yet to be launched, sent to me without official retail package.
The CP100 is the best-selling eartips from SpinFit, being the original SpinFit that was sold since 2010. Made from edible-grade silicone, it comes in sizes from SS to XL, and each package comes with 2 pairs.
The patented aspect of the SpinFit ear tips is the concave 3D axis towards the tip. This allows the ear tip to flex and bend as it pushes into your ear canal.
Here are the wired earphones I have in my collection and tried them with the CP100.
Sony XBA-4 with SpinFit CP100
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.
Sennheiser IE 300 with SpinFit CP100
Similarly, the CP100 makes the IE 300 sounds slightly more boomy towards the upper bass. However, this affects the transparency of the treble, making the earphones sound a little less airy. I would prefer the stock ear tips but if you are a bass person, then the CP100 works in your favour.
The IE 300 stock ear tips are softer, so it needs a bit adjustment to get the seal. The CP100 achieves the seal quicker when you insert the earphones into the ears.
Creative Aurvana Trio with SpinFit CP100
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.
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 will be releasing a new version of CP100. The CP100+ will be using medical-grade silicone for even better comfort and reduces allergic reactions. The retail package is not ready yet but SpinFit sent me samples in generic packs.
From the naked eye, they appear identical to the CP100 except the colour. They also feel similar in my ears. The audio quality is also exhibits similar characteristics, although I had an impression that the CP100+ produces slightly clearer upper frequencies like cymbals. Given the CP100 has been on sale for so many years, it’s good to get an upgrade with better silicone materials.
The CP360 is another popular model as it is designed to fit most true-wireless earbuds. Made from medical-grade silicone, each pack comes in two adjacent sizes, which I thought was rather clever. Due to the longer silicone tip, I find that I could not keep the CP360 within the ear canals when wearing the same size. That’s because the current size eartips are meant to sit outside the ear canal while the CP360 is designed to go a little deeper. For that, I would recommend you to get the pack which comes with your current size and a smaller size so that you can push deeper into the ear canals. For instance, if you wear a M-size, you should get the CP360 that comes with S and M, and not M and L.
Here are the TWS earbuds I have in my collection and tried them with the CP360.
Creative Outlier Air V2 with SpinFit CP360
The Outlier Air V1 definitely cannot work with the CP360. As for the V2, well, it is a little loose. As a result, there is a tendency that the CP360 stays in the ears when you remove the earbuds. For that, I would not recommend using it with the CP360. However, if you insist on using, the CP360 can fit in the charging case.
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
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.
Technics AZ70 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.
Audio-Technica ANC300TW with SpinFit CP360
Using the stock ear tips, the ANC300TW has a slightly harsher mid-treble which I noted in my review. When listening with the CP360, the harshness is less pronounced, and the treble sounds cleaner.
In general, the CP360 is a mixed bag. The sound is slightly improved but it fits different from the stock eartips. It is not as soft as the silicone tips from the more premium brands like Sennheiser, and due to the extended tube, the earbuds do not sit inside the ear concha. I would recommend getting one-size smaller eartip so that it can stay inside the ear canals, which is the intended design of SpinFit, but if you prefer eartips to fit the same as your current eartips, then the CP360 might not feel as comfortable, albeit with improved bass.
The CP1025 is designed specifically for Apple AirPods Pro. Each pack comes with 2 pairs of ear tips and one set of adapter. The silicone is medical-grade. While Apple’s original eartips are integrated with the adapter, the CP1025 adapter is separate from the eartips. For my review, I tried the M/L size, which is a size between M and L. I chose that because I thought M was just nice, perhaps a little loose and wanted a slightly better fit. I also tried L stock tips and my ears could still fit them.
The CP1025 silicone is not moulded to be oval shape, but it stretches to oval shape after inserting to the adapter. I felt that the CP1025 silicone surface has a little more grip than the stock tips, so when you fit them into your ears, they stick to the skin a little more. They still feel comfortable though, and I felt the bass intensity is slightly less compared to stock. The transparent design makes the AirPods Pro appear smaller.
If you find the stock ear tips is not so grippy, then the CP1025 might feel more secure in your ears. Sound-wise, it does not radically transform the sound, and the tips are not as long as the CP100 and CP360, so it feels on par with the stock ear tips.
The SpinFit ear tips are officially sold at Amazon for worldwide readers, with price ranging from US$10.99 and US$14.99. They use medical-grade silicone which reduces allergic reactions, something that I get very often when I review lesser-known brands which causes my ears to itch within hours of wearing them. In Singapore, SpinFit ear tips are stocked at reputable electronic shops like Lazada, Shopee, Connect-IT, Stereo, Treoo, Jaben, and more. There are also other models made by SpinFit that fit other earbuds design.
Thanks SpinFit for sending me the ear tips. Obviously my ears are only one-size, so if anyone wants a set, share this review on your social accounts and tag me at my Instagram handle (@musicphotolife) or Facebook page (@musicphotolife). Once you tag my account, I should get a notification, and I will pick some lucky readers who will receive a set. Only for readers with Singapore address.