I lusted after the SDA series back in the 80's but always seemed to go off in another direction. I've owned Theils, KEFs, Maggies, Legacy Focus, Carvers, Klipsch, Eminent Technology, Energy, etc...but still never a Polk SDA. Mainly due to them being discontinued and not being able to find a pair locally...til now. I just purchased a pair of vintage SDA-1B's in decent condition WITH the SDA interconnect. I have them set about 5 feet apart and approximately 6' to me in a relatively small room (my 'mancave' with a very comfortable listening chair). They are about 2' from the side walls and about 2.5' from the rear wall.
First impressions: nice, solid bass, with smooth high and articulate mids. The SDA effect definitely stands out with some music and not so much with others. I'm still at a loss to figure out why Polk discontinued this series as I think it would still be their best seller if they brought it back. I've had discussions with others in the past and the only conclusion we could come to was this was discontinued about the time home theater starting evolving with smaller satellites and 'cube type' (you know who I'm referring to) speakers which were touted as being more 'room friendly' and/or visually appealing. I'm also guessing that dolby digital and dts which provide their own means of recreating a spacious soundstage didn't help either. As to the size of the speaker; personally I think a bigger speaker 'sounds' bigger and fuller; which I prefer. Hopefully this isn't the kind of sound one grows tired of (as I've heard others say in the past). For now, I'll just enjoy it...

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