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I too have a pair of the SDA-2 speakers. However I am now finally upgrading to some new equipment. I have an old NAD amp/pre-amp/tuner with the SDA-2s. I have just purchased a pair of Sonus Faber Cermona Auditors... these are the first speakers that convinced me there was anything out there better for the money. Now I need to upgrade the rest of my system... still like NAD and considering the T773 or the new seperates (T163 and T972 or whatever it is). Any thoughts?
Bought a pair of SDA-1B's about 1 1/2 years ago for $150. Sound great, upgraded the original tweeters which took away the HF brightness. But now at a crossroad. Overhaul the 1Bs or replace them with a set of Polk LSI9s? The old Polk stereo dimension sound is not for everyone with the mids right in front of you. But with your fav female jazz singer or David Benoit on the keys you're front stage center. Dave
Even with all the Polk bashing in the late 80s and early 90s I was always amazed when I auditioned these back in the day. Although I never owned a pair (until recently) it was a design that was very original and full range. A few months back I purchase a pair of SDA-1Bs and yesterday I came into a nice pair of SDA-1Cs with an upgraded crossover and new silk dome tweeters. Talk about full range and HUGE soundstage. If not for the paradigm shift to smaller, more 'home friendly' speakers these would still be very viable designs. I use mine in a two channel only room and feel there is nothing lacking; solid bass, neutral midrange and airy highs with that addictive SDA effect that, on many recording, has you looking to the sides for additional speakers. Not the most attractive speakers but these have it where it counts--the sound!
i just picked up a pair of sda2b, found this thread and like others was fairly amazed at how "modern" (and quite exceptional) they sound--as stated above, airy highs and very deep and tight low end. i'm left wondering why many current speakers can't reproduce bass as effectively. i didn't find the soundstage to be quite as large as others have opined--they definitely have a dead-center sweet spot, but otherwise sound almost flawless. like alot of older speakers, they seem to sound best with older gear (i tried 'em with 80s kyocera and tandberg receivers). at their current used price, the polks are a ridiculous bargain.
I had a pair of SDA-2s for about a week many years ago when they first came out. I was powering them with a Denon POA-1500 solid state amp rated at 150 watts/ch. BUT they were not delivering much in the way of current. As it turned out, the SDA cable connecting the two speakers was sending back EMF into my amps causing them to oscillate resulting in cracking noises. That was it for the Polks!
Fortunately I was rescued by a pair of Vandersteen 2Cs that I enjoyed for many years.