and they're officially discontinued....I read the rumour that they were going to be discontinued, but I didn't see anything official till I saw this on AKG's website.
It's too bad. I recently bought a used pair, and can say that through my main rig (VPI Scout/Phillips 963/Audible Illusions M3a/B&K ST140) they offer some of the best sound I've ever heard. I can't say the same for them through a t-amp. I have found that the t-amp's sound improves if I add my spare preamp, and NAD C160, to the mix. The t-amp is a very questionable choice though, it has high dc offset (although some samples measure better than others), and it has a problem with increasing high frequency output into loads above 8ohms, which can translate into brighter sound (that some people think might damage your hearing).
I am building a gainclone to use with them, hoping that the short simple signal path combined with a good amount of watts (LM4780, up to 100/channel depending on power supply) and a warmish sound will mate well with the AKG. Plus the form factor of the gainclones can be so small, excellent for a bedroom system.