Power type and voltage no power needed loudspeaker 3 loudspeakers material various materials model: ss-e 215 v - sony corporation; tokyo shape tablemodel, high profile (upright - not cathedral nor decorative). Dimensions (whd) 240 x 710 x 220 mm / 9.4 X 28 x 8.7 Inch notes bass reflex columns, 3 way system, magnetic shielding, 1 woofer 160 mm, 1 mid-range 65 mm, 1 tweeter 50 mm, nominal impedance 8 ohm, nominal power 50 w, musical power 100 w. Mentioned in sony catalogs (catalogues sony 1996, model page 101)