HSR 163-5T        6 / 3 / 1.5 W ,100V, 5.25″ Dual cone speaker, metal frame
HSR 163-6T        10 / 5 / 2.5 W ,100V,6.5″ Dual cone speaker, metal frame
HSR 163-8T        15 /7.5 / 3 W ,100V,8″ Dual cone speaker ,Metal frame