Good to know, thanks! May I ask why you wanted them to check yours out? Were you having problems with them, and did they find anything wrong with yours? I would hope that if they had to replace the drivers they would do it free of charge. I just bought these not more than a month or two ago so they're still under warranty! I am going to try to send them in within a week or two. I've heard they can be quite slow to respond via email, would you suggest giving them a call and explaining the situation?
See, I was expecting a good amount of the electrostatic clarity when I bought these, because I've heard people describe them as approaching a sort of electrostatic sound with respect to speed, clarity, etc. I didn't have time to do more detailed listening tonight, but it just doesn't seem like it's doing that for me. I will likely send them to Grado to get them checked out. If it turns out there's nothing wrong I guess I will sell them and write them off as not being my type of sound signature, which would be odd because I've liked all other Grados I've had to date.
My initial thoughts mirror yours... I thought it might be a synergy issue, but the Beta22 is a fantastic amp and I have yet to hear it make any headphone sound bad (aside from PS1000, but I think there's something else at play here). I have heard that these sound better with tubes, but I don't think SS would make them sound like this. I have a Little Dot 1+ hybrid I am trying them on right now. I mean, it sounds good, but I prefer my B22 and I don't think this is what a $1700 headphone should sound like. I think I would like these better on a nicer full tube amp, but I am still apprehensive to say that a tube amp would completely change the sound and change my impression from somewhat lackluster to brilliant. I would love to bring them to a meet or find someone else who has one around me, but I don't think there are any PS1000 or meets coming up in my area (Boston).
I really want to love these headphones given the money I spent on them and given the rave reviews, but it just isn't happening right now. Grado seems to have been having some QC issues with this model, so in a twisted way I'm kind of hoping I got a defective pair and that they'll repair it for me and I will be thoroughly impressed when I get them back. Time will tell I guess.