My IEMs arrived for repair last Wednesday, and they shipped them out on Thursday. That's impressive. I received them today, and I was initially disappointed because they had a large amount of what is apparently acrylic on them. It looks like an adhesive basically. It turns out that nearly all of it scrapes off with a fingernail except for the part where it is resealed around the faceplate. All in all, they don't look quite so clean any more, because the process to seal them up left a bit of stuff on the insides and around the seam. They basically look like they have had a bit of work done to them. Honestly, if it bothered someone much they are too particular. The only thing that irritates me is the slight cloudiness of the material that scrapes off and appears to coat all around the seam area. They sent a note saying that they upgraded the crossovers, and it's clear that they did because they are much larger than before. They also installed small red filters in the low frequency tubes. The IEM's work and overall I am satisfied, especially with the service. I called inquiring about the filters, and the guy who answers the phone (should know his name by now...) was very helpful. In fact, there hasn't been once occasion where I couldn't reach Alien Ears by phone on the first try. It's difficult to tell what difference the filters and crossovers made because I can't do a blind test of both. The difference, if any, is very small.
