the grid protector and similar power arm circuits placed on the actual circuit through out a shared circuit is merely a buck box, or rectifier box. the technology is used in alot of commercial applications to reduce heat on motor windings in motors, compressors, pumps and heaters. it provides a closer ac cyclic response to the items you are running. i have been explained what whole building rectifiers have been used for in the past but the best i can do is explain in a nutshell how they work. and why they dont require outlets to function and only need to be on the L1+L2 or L1+neutral lines +ground.
the concept is when you switch on a ac device it is taking power either from the power generation plant or say hte massive transformer down the block or mile down the road. the time it takes for ac power to switch back and forth is not just the HZ but the amount of joules? that is functional spent in the process going back and forth. this can actually hinder a circuit and provide its own issue that causes noise or flat response in audio transformers. in industrial sectors these built on rewired transformer boxes are used outside of rooms or build outs where motors are running on and off. these devices allow the copper windings in the motors to not get as hot because it injects a faster hz into the voltage lines and making the hz not struggle to go back and forth from the transformer ot power generation station. it limits the distance this ac effect happens to right ion the room or say outside your house. they are also claimed to reduce power draw on your meter too from what people have said ho use a lot of inductance? devices like motors and heating band electronics. the same applies to transformers as they operate slightly healthier. the idea is the closer the ac voltage switching(hz) occurs in your location the healthier the power will be. i suppose with stereos this offers dynamic performance. i personally seen advanced versions on room circuits with analytical devices that literally eliminates all teh dynamic noise from ac lines.
as i was explained, if you areally close to your transformer on the pole and you get a full 240/60hz its fractional in benefit. if you are anywehre under that and especially if you are teetering at 58-59hz you can see a major diffence at that hz ddrop makes a difference in how some stereos opperate. some stereos...