Adam Gonsalves of Telegraph Mastering. He basically said the same thing. After break in they extend much lower than spec'd.
And they were a bear to break in - I know Ty does what he can (I think the goal is to play music through them for a week) but in my case, they were finished on Thursday and dropped off on Saturday.
That said - I've broken in speakers before, so I had weapons at the ready. Made a disc of bass warbles and automated band-passed pink ("swooshes") to pound them, Chesky UDD2 tracks to "relax" them between workouts, pink, tones, etc. just to heat everything up occasionally.
When the things first got here, they were
really tight sounding - and by "tight" I mean "strangled and restricted" -- Every time I'm talking to someone on the phone about 'em, I make it a point to warn them about that. And every time someone gets a pair, they call up within a couple days all worried to make sure I said something about that. And every time, a week or two later, I get a call with them laughing about how they walked in one morning and all of a sudden, they sound absolutely spectacular.
And I hope I saved that disc, because I have a set of matching D4's just about ready.
I lucked out quite a bit when mine came in -- Every year, there are a couple of rather involved dance shows I compile -- About 100 tracks that need basic level-matching and occasional noise reduction (and de-crackling and what not on the ones that are pounded to death). Then compiled into 10 unique discs with around 20 tracks each, to run in the order of the performances.
It's always a good mix of pop, classical, RnB, etc. Most all of it commercially available and semi-popular (so I'm familiar with how a lot of it
should sound anyway). Only minor tweaking, could almost be done on headphones. But the lucky part is that I was able to spend my first 40 or 50 "work" hours on these listening to THAT stuff. Not having to make critical sonic decisions for the most part, listening to a broad selection of tracks while they were finding themselves.
But since they broke in I can certainly tell you one thing -- The number of revisions I find myself doing is nearly zero. One
track in January (granted, January was a bit slow, but still...) and that was one of those "we mixed it a little light and we can hear the low end you put in but we'd like a little more if you can" revisions.
I don't particularly have a record of doing "a lot" of revisions before, but they've probably paid for themselves on that alone.