SpinFit CP100+ | Premium Eartips (2 Pairs)

I'd always used the silicone tips that came with my Westone UM Pro 20's. But, as they aged, the tip fit on the nozzle got loose and they would stay in my ears every time. They probably weren't sealing as well, either. Westones have small 3.3mm nozzles, so the CP100+ inserts fit perfect. I was a bit concerned because the CP100+ tips were about 20% shorter than the Westone tips that worked best for me. The concerns vanished quickly because the CP100+ tips seal really well and let the Westone bass punch through. The CP100+ tips are also more comfortable than the Westone tips. I think swivel tip design is the reason that the SpinFit tips excel, as advertised.

I have a kind of wonky-shaped ear canal, so with some IEMs the SpinFit design is the best and most comfortable. Build quality and sound fidelity are very good too. They work, and work well; what more is there to say about eartips?

Infinitely more comfortable and better-sealing than the stock tips on my Shuoer S12s, with excellent sound quality. They're not incredibly grippy, though, and they tend to move around a bit when they get sweaty. Also, they needed to be stretched quite a lot in order to fit onto the S12's nozzle. Maybe these things are normal.

Wasn't the right size but my friend likes it

This review is based on using the CP100+ on the Shure SE846. You will need the adapters before these fit the small nozzle of the Shures but they fit tight and work extremely well. According to SpinFit the CP100+ has a little more defined highs than the standard CP100. I can't speak to that since I have never tried the CO100 but I can say that on the Shure SE846, which has a slight rolloff starting around 10K, the highs do pop a little more than with other earths that I tried. They honestly made more of a difference than I expected. I notice it mostly in percussion like cymbals and snare but also in acoustic guitar like Eric Clapton's unplugged version of Layla, Eagles Hotel California or Poison's Every Rose Has Its Thorn. The lows are still deep and tight without getting muddy and bass heavy. Vocals are crisp and clear. Soundstage is wide and clear especially on track with Dolby Atmos. Sound isolation is good but not great if you are in noisy environments. Comfort is as good as I have found. I can wear them for hours without ear fatigue. I have owned SE846s for about 5 or 6 years now and have been on a constant search for the ones that are "just right". The CP100+ are as close as I have come. They are my new favorites.