I also have never purchased any speakers that I just happen to come across because it was inexpensive. I determined what pair of speakers I wanted and then started a search until I found one that was in good condition and then purchased it and had it shipped. That is with the expection of one pair although I did know what basic design I wanted, as I wanted an efficent pair with a horn lens for the mid high ranges. I was really thinking more in lines of a pair of Altecs or JBL's but ended up with a pair of Sansui's. But they are the cheapest and smallest pair of speakers I really own, but they are almost 100 lbs's apiece, so they are not some little bookshelve model by any means.
Maybe its different types of drivers and materials that might have an influence on the way it sounds if that is something that is common for a speaker. Where the QLS have a soft dome mid range while my RS-1's have EMIM's for midrange, while the Sansui's have a horn, and the Phase Linears have a combination of pulp, and paper, so maybe some are better to my ears on some types of music than others.
If we went by specs alone, the speakers they are all pretty close other than the Sansui's.
Maybe its different types of drivers and materials that might have an influence on the way it sounds if that is something that is common for a speaker. Where the QLS have a soft dome mid range while my RS-1's have EMIM's for midrange, while the Sansui's have a horn, and the Phase Linears have a combination of pulp, and paper, so maybe some are better to my ears on some types of music than others.
If we went by specs alone, the speakers they are all pretty close other than the Sansui's.