Has anyone purchased a CIEM from Cosmic Ears and had the tuning adjusted? I was interested in their CE6P, but didn't think it would be bright enough for me. They indicated that they may be able to adjust the sound to make it brighter. I've never heard of this being possible before with any other companies. I would appreciate any thoughts on this.
i don't know whether CE is doing this, but there are companies offering custom-tuned CIEMs. Look for example at Custom Art.