Is their any way to keep voltage steady?

Check out cinepro. They have 10 and 20 amp power supplies, they keep the voltage at 117 vac. The balancer with the regulater is an awsome setup.

Equi=Tech Balanced Power....http://www.equitech.com/

I used to be able to purchase commercial grade Sola brand voltage regulators rated for 120 volts / 500 watts continuous ( enough for ALL your line level components ) for less than $300 including shipping. If i remember correctly, i think that these units weigh appr 65 - 85 lbs. I can't seem to remember where this was from though, so i can't verify availability at this point in time. I will do further research on this and ( hopefully ) post some results within the next 48 hours. Keep in mind that this is not some type of device that you plug into the wall, as it would work best with a direct run to your breaker box. Sean
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Monster Cable makes a voltage regulator that retails for $1500. I'm not sure, but I think the PS Powerplant, which is considered the finest sounding device, also keeps voltage at one of several preset levels.

I am currently having my own dedicated lines put in. Following the lead of abstract7 in a previous thread, I (actually the electrician) will bring a 220 line from the box to a stepdown toroidal transformer which will the put out 110 Volt of what will hopefully be good power. I believe if 220 doesn't actually come from the box then 110 won't leave the transformer. Still it does seem like it should have a better chance at goodpower.
Any opinions?
By the way, I thought we use 110 volt or is it 120?