Dave:
I thought it was intentional too and listened to the first several songs that way. After 3 songs, however, I started to get a bit suspicious. Then I plugged the earbuds directly in to my computer and it mysteriously vanished. It was weird, however, that the drums, bass, keyboards, and guitar all sounded fine. There were some songs where John K was singing and at times his lips appeared to synch with the echo. But no one else in the band was singing. At other times, there was an echo to his singing (and no I wasn't on anything last night).