re: "the stain"
if it is over the whole face, including where the chip is, yes it sounds as if it was there all along. Then again, I believe rosewoods coloring is uniform pretty much throughout the wood.
2 weeks, to even maybe a month or two max I can see returning something. But that length of time just seems way too long.
I would be that aggravated except for the fact you paid a premium amount of money for your speakers.
the Athena AS-F2 speakers I bought at BB a few months ago had some damage on the corners. One was an open box, so I knew, the other was a closed box, which I opened and inspected. It too was lightly damamged. If I was buying these at the MSRP, or higher, I might of complained - but the damamge doesn't effect the sound or the look of the speakers that much.
I bet they didn't expect the customer to notice/care about that blemish. If it was $150, I'd agree with them. For $1500+? or whatever you paid... I'd be absolutely ticked.... and wouldn't of waited.
Given your situation, the length of time, and the fact that you moved, I think your SOL. Even going back to the original shop that sold you the sub would be difficult... Because they too would be like.. um, didn't you get this like a year ago?!?