Help on Power conditioner

In USA Monster Cable made a AVS2000. A device to keep the 117V voltage at the level wanted.
Perhaps some other European companies make an industrial sort for 220V?

All equipment designed to placed on European market since 1995 has to operate at 230V +/-10%. 180-190V is low but it should not damage anything. Why would you like to control fluctuations? Does it affect the sound?

No Kijanki, only am worried about saftey. Becoz sending for repair the unit to manufacturer is a new amp cost for me.

Rabbani, it sounds like you have undervoltage problem. It should not destroy anything. If it doesn't affect the sound leave it alone. Still, voltage spike caused by lightning or nearby inductive loads (like motors) switching is always possible. I use Furman Elite 20PFI that has strong non-sacrificial over/undervoltage protection. It provides high peak current by employing big capacitor and big inductor that store energy. I cannot hear any difference in dynamics with my power amp. It also have separate outlet banks for low current audio and also for video. Those banks have strong filters that clean all the junk from the power line before it enters my system.

Thanks Kijanki. Message is noted.