Puritan PSM156

20A US version. 

Before upgrading to the Puritan Premium cable, try 2 Shakti  on-lines on the standard power cable . Very pleased with the improvement in all areas.

I also prefer my amps (which would include active ATC speakers and studio monitors) plugged into my PSM156s (three stereos and one recording studio).

What really stands out for me is the improved quality of my studio recordings.

I have ordered the PSM 156, with a couple of months to save for it. Really looking forward to having it in my system.

Chose the 156 over the 136 as I'll have my amp, DDC, Dac, network switch, and streamer plugged in.

Also looking forward to my amp hum disappearing.

Can someone explain how the "non-sacrificial gas surge protection" works on the Puritan PSM 156?

If there is a surge, does it shut your components down. Then what happens?

Also, what is the small black button located near the power cord inlet used for.

Thanks for the information.