I am thinking of buying an N-Vi 220 - 240VAC. If I move to a 110V country, will I be able to switch the voltage without power supply change?

NO

Manu thanks for your short and sweet answer.

If I cannot switch the amp voltage, generally would a step down transformer affect the sound quality?

Following up on the NO answer, what would it take to modify the N-Vi into a 220V machine? Would the parts change be so costly that I might as well buy another one?

I could be wrong on this, but I believe any warranty support for the power supply would disappear–each supply is designed and tested at its (more narrow) rated voltage (range), unlike many general-purpose SMPS designs where the input voltage is autoswitching across a wide 90-250VAC range.

You will need to speak directly with the factory on this one I'm afraid...

Effectivly its a new PSU.

For me it is getting to the point where the lack of multi-voltage support in a product means I probably will not buy it.

Cheap $5 transformers do 100-240 volts - computers usually have a 110 or 220v switch on the back......how bloody difficult can this be???

quote:

Cheap $5 transformers do 100-240 volts - computers usually have a 110 or 220v switch on the back......how bloody difficult can this be???

Yep, rgame666, i'm with you on this one. Christ. I can even remember I used to have a Dansette record player that had a double-sided cartridge with a change-over lever for old 78rpm and the newer 45rpm records. It also allowed me to stack half a dozen records so I could have continuous music whilst bonking the latest girlfriend.

Why is it that technology keeps going backwards or that "specialist" hifi manufactures keep ripping us off by fitting single-purpose "specialist" pieces of kit at sky-high selling prices???

Cheers

Don

quote:

Cheap $5 transformers do 100-240 volts - computers usually have a 110 or 220v switch on the back......how bloody difficult can this be???

You're lucky–I remember the days of pro audio gear (typically made in the U.K.) for which there were no 115V transformers available for export markets.