Re: Speaker break in question.
No Idea how long those particular speakers will take to break in, just thought I'd toss this out there...My Cousin, who is a bit more tone obsessed than I am, I guess, was telling me the other day how he breaks in speakers...
What he does is He hooks his guitar and amp up to whatever cab/speakers he's planning to break in, and records about three songs worth of himself playing through a boss loop station. Just whatever songs, but he insists they have to be full songs, played through the amp with whatever sound you normally use. So they break in "for your sound". Then he mic's the cab and records that onto a digital multitrack. He then dumps that onto his computer, into whatever recording program he uses, and sets it up to just play on a repeating loop through his stereo. Then he hooks the output of the stereo to the cab, turns it up really loud, and goes to work. And repeats that every day for a week or so.
He claims that after a week or a little longer (depending on the speaker), the speakers are nice and broken in.
That all said...He also lives by himself in a big ass house in the middle of no where, has no girlfriend, and hasn't had one in a long time.
...Now as for whether that actually makes any difference/works, I have no idea.
He told me all this after I recently bought some V30's and he insisted I needed to break them in (despite two of them being old UK models, and all four being used)...I haven't actually tried this out, being as I share my house with a girlfriend, my daughter, two dogs, a cat, in addition to an additional human room mate...But he seemed pretty adamant about it being the best possible solution to breaking in speakers, without actually having to, ya know...play guitar a whole bunch...But I will say, it definitely seems like the most complicated way of doing it I've ever come across...so there's probably something to it.