Tons of info at polkaudio...they love lots of power very unlike the Klipschs..the SDA sound is a bit different at first but most love it....for the right price they are easy to flip if you dont like em....do they come with the SDA connecting cable?
worth it if they are in great condition as there are no spares parts/drivers around, will send you a "what to look" in these speakers from one of the originators of these speakers if you like....good luck in the search...
I was really surprised to get em just bid up to the min, had gotten a few emails earlier in the day from both Paul Burton and Moray James, 2 of the 3 that invented this beauty. This is the second like new pair they know of...the voice coil has all fluilds and never a sign of a leak and the panel...
I just picked up a pair of Sumo Arias, quite rare especially in like new condition as these are, quite a differnt design, the sound...heavenly..need a sub with them..now the search for the tube amp begins :)...did I mention these sound heavenly....a very different sound than my Mirage M-1's...
I found the SL-2000 to be harsher sounding and could not listen to them for more than an hour..with the replacements I can listen all day......different tweets for different folks ;)