A question of power

I'm not sure about this, but that sounds like it might be outside of tolerance limits on the high side. I'm sure someone here will have more knowledge about what the tolerance limits are, but you may want to have a chat with your power company.

if i'm not mistaken, USA voltage is spec'd to +/-5% of 120V (someone correct me if i'm wrong). so, your voltage readings are a bit on the high side. take some measurements over the course of 1 week & see if you have consistently high readings. Of course, do double check that you are reading the #s correctly & that your equipment is correctly functioning.

power conditioning......hmmmmmm.....where to begin!!!
to get the voltage to 120V always you'll need a voltage regulator/re-generator like the one PS Audio makes (or some other brand). Most other power conditioners (like BPS, ExactPower, Richard Gray, Chang Lightspeed, Blue Circle, etc, etc) do not regulate the voltage; rather, claim to "clean" it up.
Do a search of these archives to find info & there is a ton of it here!
Each method - power conditioning & power re-generation - has its pros & cons. You'll have to educate yourself & decide.

Bombaywalla, I was told the same specs. from my local power company [120V... +/- 5%]. This translates to a range of 114V to 126V. Kck, you have an over-voltage situation, which could adversely affect ALL of your electronics (premature failure). Are you using a good voltage meter, with FRESH batteries?

Maybe I am wrong here, but since it is still cool outside in some parts of the country, homeowners arent their air conditioning units right now. Once summer comes, wouldnt the Voltage tend to drop more then ?