Has anyone tried using a double UPS for clean power?

Video is strange- asking a manufacturer for free advice to cheaper alternatives.  

@kennyc 

I found it odd as well, but it made me wonder if anyone else had tried it and if it really worked. For a few hundred bucks could l really get clean power and would I notice a difference?

@mulveling 

Two houses ago, I had a lot of noise on my power and I lost a TV and a receiver during a storm.  I bought an Audience AR6.  It made a very noticeable difference in my system.  We moved from the city to the country into a new subdivision on what used to be an open field.  Everything was sounded great even without the power conditioner, but after a while, I put it back in because it had a magnetic circuit breaker. About seven years ago we moved back to the city, and near a four story medical building.  Most of the time my power seems fine, but every now and then my system sounded different, kind of thin. I put the AR6 back in and it made no difference. And once again, I left it in because of the magnetic circuit breaker.

@mulveling  I haven’t had coffee yet but isn’t that how all regeneration works. AC > DC > AC? So what's a "double UPS" the OP mentioned?

It’s a single UPS unit designed to internally convert the wall AC to DC, and then from DC back to AC (hence the "double conversion"),

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