Archimago's Musings: RETRO-MEASURE: Klipsch Forté I speaker impedance. (And it looks like Qobuz responds to Amazon...)
Amazon.com: Klipsch 5.1 Walnut System with 2 RP-280F Tower Speakers, 1 RP-450C Center Speaker, 2 Klipsch RP-160M Bookshelf Speakers, 1 Klipsch R-112SW Subwoofer : Electronics
Amazon.com: Klipsch 3.1 Walnut System with 2 RP-150M Monitor Speakers, 1 RP-450C Center Speaker, 1 BIC/Acoustech Platinum Series PL-200 II Subwoofer : Electronics