Well, to answer that one literally, most 'clamping' regulators can't compensate for sag, beyond the overvoltage from which they derive the desired output voltage. (Huh?)

Simple regulator circuits can't compensate for undervoltage, if they clamp and don't boost. On the other hand, switching power supplies just draw more current as the input voltage drops.

While I'm a protect-the-gear kind of guy, too, there are many who believe that serious voltage regulation, i.e., 'clean power', does translate into cleaner DC and equipment performance.

Supposedly, audio is (fill in the blank with any of a number of comparatives and superlatives) and video is (same here) when the incoming power is run through the wringer.

While I certainly do believe in doing quality electrical work (both power and low-voltage) using quality design and materials, but I'd never spend $150 on a receptacle.

Larry
www.fineelectricco.com

Voltage regualtors that are part of the circuit insid a piece of audio equipment aren't fast enough to deal with low voltage spikes. What can happen is that the regulator will compensate, then wham the voltage source is restored and all of a sudden there is too much current flowing through the circuit

I understand that a 12v zener or equivalent cannot clamp something that is below 12v, but we're stepping down from rectified 120VAC, so your power would have to be really crappy to get this low. Just curious, have any of the clean power companies actually meaured noise levels on the DC side of the voltage regulator. I do believe in selling the best sound and video, but I draw the line at snake oil.

lol, I like that "snake oil", and I'm of the same mindset. Trust me, there is no shortage of snake oil in the home AV industry. But seriously, low oltage or fluctuating voltage can really defeat a cheap voltage regulator. It's happened to me more than once.

So where does this leave the Richard Gray products in this discussion? Over priced garbage? Good investment? There's just as good for less money in other prodcuts? Spend the money, it's worth it?

Inquiry minds want to know?