Adcom GFA-555 in Mexico on 127 volts?

The price problem is related to voltage regulation. Voltage regulation requires transformers, which is heavy and therefore expensive.

I think most in the US are fine without them. If you are asking me about running in Mexico, I'd say it was a requirement.

TRUE voltage regulators usually start in the $300-$500 range. Then it's a matter of what else do you want? :)

The SMP (series mode surge suppression) is the one thing I think all power conditioners should have for valuable audio gear, plus it has nice noise suppression all on its own.

I find the LiFT feature in Furman units to offer genuine improvement in sound quality thanks to a lower noise floor. But it IS another step up in price.

Best,

E

Thanks all, for your thoughts, experiences and suggestions.

At the moment I have access to a Tripplite LCR2400 to maintain 120v here in Mexico.  It works, with its "High" light on, which means it is receiving within 7% of 120.

Problem is that the unit often hums, and when it does it also emits a 360Hz harmonic partial that is heard all around the room.

Hence my question about the risks of tapping straight into the wall (127v).

I'll be replacing the TL soon, and TL Mexico has agreed to examine the unit (it's brand new, shipped from the US), to see if the hum can be resolved.

Mechanical hum is an issue with a lot of these I am afraid, including Furman, but I can usually hide mine so it is not noticeable.

Best,

E