---
product_id: 66587119
title: "CP145 for IEM - L - Patented Silicone Eartips for Replacement, Secure Fit and Supreme Comfort (2 Pairs) (for Nozzle Diameter from 5-6mm)"
brand: "spinfit"
price: "€ 23.50"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.es/products/66587119-cp145-for-iem-l-patented-silicone-eartips-for-replacement-secure
store_origin: ES
region: Spain
---

# 4.5mm bore size for perfect nozzle fit Supreme comfort with breathable material Patented silicone for secure, slip-free grip CP145 for IEM - L - Patented Silicone Eartips for Replacement, Secure Fit and Supreme Comfort (2 Pairs) (for Nozzle Diameter from 5-6mm)

**Brand:** spinfit
**Price:** € 23.50
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your audio game with the fit that never quits!

## Quick Answers

- **What is this?** CP145 for IEM - L - Patented Silicone Eartips for Replacement, Secure Fit and Supreme Comfort (2 Pairs) (for Nozzle Diameter from 5-6mm) by spinfit
- **How much does it cost?** € 23.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/66587119-cp145-for-iem-l-patented-silicone-eartips-for-replacement-secure)

## Best For

- spinfit enthusiasts

## Why This Product

- Trusted spinfit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Double the Value:** Includes 2 pairs (4 pieces) so you’re always ready with fresh, hygienic replacements.
- • **Universal Compatibility:** Seamlessly pairs with AKG N30, N40, 1More E1001, and more—upgrade your favorite IEMs instantly.
- • **Audiophile-Approved Comfort:** Engineered for supreme comfort, these eartips reduce ear fatigue without compromising sound isolation.
- • **Patented Silicone Technology:** Experience a secure, slip-resistant fit that stays comfortable during long listening sessions.
- • **Precision Fit for Premium Sound:** Optimized 4.5mm bore size fits 5-6mm nozzles, ensuring crystal-clear audio delivery.

## Overview

The CP145 for IEM - L features patented silicone eartips with a 4.5mm bore size designed for 5-6mm nozzle diameter earphones. Compatible with popular models like AKG N30, N40, and 1More E1001, these replacement tips provide a secure fit and supreme comfort. Each package includes 2 pairs, delivering durable, slip-resistant, and breathable eartips that enhance sound clarity and long-term wearability.

## Description

Full description not available

## Features

- Eartip has a bore size of 4.5 mm which fits earphones that have sound port nozzle 5-6mm. (Mostly w/ BA drivers) Comparable to Comply T-500.
- Compatible with AKG N30, AKG N40, and 1More E1001 Triple Driver
- Inbox collaboration with AKG N5005.
- Package includes 2 pairs of silicone replacement eartips ( 4 pieces ).

## Product Details

- **Color:** Blue
- **Brand:** SpinFit
- **Material:** Silicone
- **Compatible Devices:** Earphones
- **Item dimensions L x W x H:** 0.5 x 0.5 x 0.4 inches

## Images

![CP145 for IEM - L - Patented Silicone Eartips for Replacement, Secure Fit and Supreme Comfort (2 Pairs) (for Nozzle Diameter from 5-6mm) - Image 1](https://m.media-amazon.com/images/I/61+D1PaSTBL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Supreme comfort, like they say.
*by A***E on January 26, 2022*

I have pretty much the entire range of SpinFit tips, which I have bought to try and get good, comfortable, secure seals with my many Bluetooth earbuds and wired IEM's. I did not have the CP145 and saw that these were recommended for my Tin T2Plus and CCA C10 IEM's. I was using some CP100's and CP360's but these CP145's are almost the same as the CP100, but the port size is slightly larger on the CP145 compared with the CP100. Hence, they are easier to get onto the port, but still a secure fit to the IEM.The fitting onto the IEM's was indeed easier, but they are on there securely unless you want to remove them.I've found that even the smallest tip dimension change can make a big difference to the fit. I chose the M size, based on my other tips. Usually, I have to use a large silicone tip in my left ear and a smaller size in the right ear, where the tip rests in the outer part of my ear. However, with the "IEM" tips, which tend to fit more deeply into the ear canal, a common size works for both ears.Inserting the 'buds in my ears, the CP145's seemed to fit in my ear canals really nicely without too much, if any pressure. In fact, these tips make the IEM's even more comfortable than they were before. The tips are not holding the IEMs in my ear as such, just sealing the canal. The IEM body and pre-formed over-ear cable sleeve are what holds them in place. I test a secure fit by inserting the bud, then pulling lightly on the body. A good fit tends to resist the pull. These tips just slid out.I have tried the CP145's on my Sony WF-1000XM3 earbuds and they don't work for me. As mentioned, the tip doesn't hold tightly in my ear canal and so the XM3 falls out easily. It seals really well, but I get a more secure fit, though not much better, with the stock tips. The CP360's work well at locking in my concha, but they do push the earbud out further and the XM3 wobbles around on that knuckle. The ANC is worse also, as I cover below. I have yet to try them on my other BT buds, but I suspect the same result. Perhaps a larger tip would jam in my ear more securely, but then the fit and comfort won't be as good.Typically, SpinFits aren't so good when ANC is involved. The material is thin and tends to add length to the tip with that articulating knuckle. That means more noise can get through the tip into the ear. Typically, I don't use SpinFits on my BT ANC earbuds for that reason. They are always much more comfortable than other tips though. It depends on what is a priority for you. Since the IEM's are not noise canceling and actually don't have that good a passive noise cancelation, the SpinFits work fine in this application. The body of the IEM is not pushed out as the tip goes fully into my ear canal. So, the noise isolation is pretty much the same.Unlike with foam tips the sound profile doesn't seem to be affected much, though I do notice a slight emphasis on the treble.Overall, these have proven a worthy purchase for my IEM's.I can recommend them, with the proviso that everyone's ears are different and what works for me, might not for you. Fortunately, Amazon has your back with free returns. I went through 3 different sizes of AZLA Crystal tips until I found the size that worked for me on my Galaxy Buds Pro! Happily, I struck lucky with the CP145's on the first buy.

### ⭐⭐⭐⭐⭐ Comfortable Option for Replacement Tips
*by C***L on May 6, 2025*

The SpinFit ear tips are known for their "swivel mechanism", which allows for a deeper and more secure fit, improving both comfort and sound quality. They are made of soft silicone, designed to enhance isolation and bass response while maintaining clarity in the upper frequencies. Compared to other SpinFit models, the CP145 has a slightly longer shape, making it ideal for earphones with wider nozzles.I have found that they are comfortable in my ears and the materials they use seem to be of good quality.Overall, they are a solid upgrade for anyone looking to improve their in-ear monitor experience without switching to foam tips.

### ⭐⭐⭐⭐ Fits Sennheiser IE40 Pro
*by J***. on January 15, 2019*

Upon opening I noticed they were very soft and pliable. Immediately thinking they'll hopefully be so much softer in my ear canal and can be more comfortable for longer periods at a time compared to the stock tips of the ie40's. These aren't as tight as the ie40's so you won't get that little satisfying double click putting them on the nozzle like the ie40's. They stay on the nozzle without coming off so don't worry.The only downside is that they are wider than the stock IE40 Medium silicone tips. They're around the Large size or in the middle. Definitely not IE40 Medium. So if you're getting these to replace the ie40's and small is too small and medium is too big I'd recommend getting CP145 in a Small as it would fall directly in between those two sizes I assume. I wish Spinfit had a variety pack of a pair of small and a pair of medium or another one with medium and large. That way we can get the best fit without having to hope for it to be a perfect fit if it's your first time getting an iem tip as I think spinfit falls under with it's pricing being relatively affordable and will be most peoples first tip purchase. Keep the two pack just like these but hopefully they can add the different sizes in the future in one package.Now for sound quality. MUCH smoother than the silicone IE40 medium tips. No more slightly hot s sounds. Not that the IE40 is treble piercing but it's just slightly on edge at times if listening loud or gaming with gunshots going on all the time in video games. Bass is just the same but vocals seems to be smoother and slightly more deep. Just a tad bit though. Subbass is pretty exactly the same. Just that region for male vocals seem to be SLIGHTLY fuller. Soundstage decreases with these tips a bit. The airiness of the stock ie40 tips is no longer there.These are great for podcast listening and vocal's really. For gaming, or jazz, acoustic, and anything else instrument related I'd opt for the stock tips. String instruments sound wider and a bit more clear. For all day comfort and house music and electronic music and such I'd opt for these. Just keep both tips nearby so you can switch depending on what you'll be doing. Walking around in public? THESE. They don't block out as much noise so you'll be able to hear your surroundings. Though with the increase of ambient outside noise it doesn't effect the sound too much. Bass stays the same as noted.If you're on a train or around loud things I'd probably not wear these for that. The stock foam tips may be better. These aren't as noise isolating as the stock ie40 tips so keep that in mind. Which I much prefer because I'll be using these iem's in public too or under a motorcycle helmet for navigation. I'd say it's about 2db less or so attenuating than the stock medium tip. Not much of a difference. Just slightly.

## Frequently Bought Together

- SpinFit CP145 for IEM - L - Patented Silicone Eartips for Replacement, Secure Fit and Supreme Comfort (2 Pairs) (for Nozzle Diameter from 5-6mm)
- SpinFit W1 for IEM - L - Patented Medical-Grade Silicone Ear Tips, Double W-Shaped Tube Core, More Stability
- SpinFit CP155 for Wide and Long IEM Nozzle - L - Patented Silicone Eartips for Replacement (2 Pairs) (for Nozzle Diameter from 6-7mm)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.es/products/66587119-cp145-for-iem-l-patented-silicone-eartips-for-replacement-secure](https://www.desertcart.es/products/66587119-cp145-for-iem-l-patented-silicone-eartips-for-replacement-secure)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-27*