I have received ST30 from my brother staying in US. After going though this forum I came to knew about the differences in Volts in India (220V). I spoke with Bose CC, they informed that the warranty is void as there is a voltage difference in regions. My brother is suggesting to replace the power supply unit from Bose Service Center.
Which option would be best among 1) Using StepDown transformer or 2) Replacing the Internal Power supply of Bose Unit (cost around 9K). Also after speaking with Bose Service Center, they are giving a 1 Year warranty of the unit.