“Will this work with a pair of Polk SDA-1 tower speakers?”
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While the AVR-S570H is a very good value AV receiver, it can only be asked to do so much, and the SDA-1 speakers are a little too much for the AVR-S570H. The SDA-1 is a large speaker, designed for use in a large room. Lots of air needs to be moved when driving them in a large room, which requires an amplifier with plenty of grip. Polk SDA-1 speakers require something better equipped to handle their demands, such as our PMA-1700NE integrated amplifier.
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