Thank you all participated members & contributors , a part from safety aspects of AC mains 120 or 230/ 240 volt, only a few audiophiles commented on benefits or advantages of running Audio equipment 230/240 volt. (ditusa
I run my amps on 230Vac.They sound better. (Improved speed and better transient response.) which I totally agree with him , after peeling the layers decided to install 240 volt AC mains in my new home rather then converters or step up/down devices thanks to
(JEA48 Jim.) and Ditusa how easy to install 240 volt US homes also plenty info on you tube
https://www.youtube.com/watch?v=2h2XsKgkFCoremaining problem is voltage fluctuation in US Voltage can go up to 124 volt or higher even below 120 volt , similar problem in UK voltage can go up well above 240 even well below 240v depending on peak time, tv , washing machine etc , etc, I believe oversize transformers may able to coop with this , but for standard transformers it may be a problem can anyone suggest adding voltage stabilizer resolve this issue.