Sony – (2 Speakers) – SS-MF315. Yamaha (4 Speakers) – Club Series 3 – Model 110111 (oak). Cambridge Soundworks – (2 Speakers) – S300. Polk Audio (2 Speakers) – R15. KEF (2 Speakers) – Q30. JBL (2 Speakers) – L5. Definitive Tech (2 Speakers) – BP2000. Infinity (2 Speakers). Acoustic Research (2 Speakers). Carver (1 Speaker) (Center Speaker). JBL (1 Speaker) SC-305. All have been tested and work except Definitive Tech BP-2000 – (just bass doesn’t work). George, Utah (Ivins, Utah).