My Spinfits CP155 (M) arrieved today and I must say that I don't like the sound with them at all compared with the stock silicone and groovy tips.
The fit is great and the isolation improves by a noticeable margin, as well as the bass response, but the upper-mids and low-highs seems to be lost in the pack, maybe due the smaller ear tip cavity.
Overall I find the best balance between sound and comfort with the smaller stock silicone tips, which have similar shape and size compared to the medium Spinfits, but a bigger end cavity with the original detailed and spacious sound the iSINEs are known for.
The fit is great and the isolation improves by a noticeable margin, as well as the bass response, but the upper-mids and low-highs seems to be lost in the pack, maybe due the smaller ear tip cavity.
Overall I find the best balance between sound and comfort with the smaller stock silicone tips, which have similar shape and size compared to the medium Spinfits, but a bigger end cavity with the original detailed and spacious sound the iSINEs are known for.
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