These might sound like dumb questions, even though I do appreciate having decently sounding speakers.. and sure for travel, I appreciate portability too.. and it might be worth the opportunity costs from buying more Cornz (a trade off) to get something like those speakers (I had been considering changing my travel speakers )..   So, if those speakers have good chances of bringing me a reasonable amount of additional pleasures, joy and various other tingilies, then spending the extra value (instead of buying dee cornz) may be acceptable for me...

You answered quite a few of my questions, but I am still unclear about the power and the hook up for two speakers.  So if you are traveling with a computer as your sound source (I suppose you could have a phone or some other device as your sound source, too), then you would have one minijack to XLR cable from your computer (audio source) to one of the speakers and then the other speaker would have an XLR to XLR cable.  

I am presuming that you only need a power cable going to one of the two speakers?  and how does your computer know the difference between right and left?