hi there. after some search i could not find a proper answer to the doubt i have while planning my installation. apologies if it is repeating, so here it goes. i have +3 years old component HT system purchased in Japan. .1 Yamaha RXV1400 (110v/60Hz, 240v/50Hz) .2 Pioneer DVD player (110v/60Hz, 240v/50Hz) .3 Fujitsu PlasmaVision 52" (110v/60Hz, 240v/50Hz) .4 Bose Acoustimass 5.1 (110v/60Hz) as you can see almost all components are multi-voltage, except the speakers. now i am in process to move this system to India where voltage system is 240v/50Hz. in that case should i go for - .a one single step-down transformer (good quality) for all components or .b one step-down transformer for just speakers alone in either case what quality difference am i to expect? would appreciate the comments and feedback.