How To Do You Measure the Quality of Your AC Power?


What is the best way to measure the quality of the AC power feeding your listening room? Is there a device you can plug into an outlet that will give you the voltage, frequency, the total amount of distortion relative to a perfect sine wave, etc.? Furthermore, how would you measure the ability of your AC main to deliver transient currents?
It seems like there may be a scenario where you could measure your power quality to be excellent but somewhere in the line you could have a loose or poorly made wiring connection which under heavy load (such as powerful bass notes) you could run into trouble with power delivery. In this scenario, an AC regenerator would not help you, or would help very little.

Just curious what methods people have come up with to systematically analyze their power and how they use those measurements to drive buying decisions or repair work, if needed.

Edit: My apologies for the title typo.
128x128mkgus

Showing 1 response by drlisz

@Mkgus  You could look at our purchasing a line conditioner.There is one made by Trip lite I think it's around 90 .00 it will not only protect against spikes but it regulate the voltage. If the voltage dropped to say 85 volts on your circuit feeding your audio system it we correct it to 120, also if it went to high say 130 it will also correct back to 120. Also a whole house surge suppression ( breaker) depending on the panels manufacturer would also help protect the circuits feeding your audio system as well as rest of the house. If you have power and all seems to work fluctuations are tough to troubleshoot and actually repair some people don't know there occuring. The conditioner will help with some piece of mind yes I have a clean 120v for the circuit.