Subwoofer for Keyboard instruments Compatible with PSR-SX920, PSR-SX720, PSR-SX600, PSR-E473, PSR-EW425 & PSR-A5000 New Twisted Flare Port contributes to clear and tight bass Advanced YST II (Yamaha Active Servo Technology II) 20 cm (8”) cone woofer Stylish addition to any room Specifications: Driver – 20 cm (8”) cone Dynamic Power – 100 W (5 ohms) Output Power – 50 W (100 Hz, 5 ohms, 10% THD) Frequency Response – 28–200 Hz Advanced YST – Yes Twisted Flare Port – Yes Dimensions (W x H x D) – 291 x 292 x 341 mm; 11-1/2” x 11-1/2” x 13-3/8” Weight – 8.5 kg; 18.7 lbs.
