AC Power

Interesting, my nephew thinks neither are worth the investment. His statement: “Do you have appliances on the circuit now? What kind of interference can they inject?...voltage drops would come from current draws...which trip breakers.
Not steady 60hz a good power supply handles. So it all comes back to was the power supply engineer dropped on his head as a child.”

”Personally I think it’s something audio people do when they have run out of gear to buy.”

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voltage drops would come from current draws...which trip breakers.

"which trip breakers." Motor loads can. Non motors loads no.

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”Personally I think it’s something audio people do when they have run out of gear to buy.”

I strongly disagree...

I assume you are feeding your 2 channel audio equipment and H/T equipment from a single 15 amp convenience outlet branch circuit. FWIW per 2020 NEC (National Electrical Code), there is no limit on the number of 15 amp duplex receptacles that can be installed on a 15 amp convenience outlet branch circuit in a residential dwelling unit. Also worth noting ceiling light fixtures can also be connected to the same branch circuit wiring. Got LED lamps in them fixtures? Harmonic distortion noise...

What wiring method did the residential electrician use to make up the in and out branch circuit joints/connections in the wall outlet boxes? Worst wiring method is using stab in the back residential grade 79 cent duplex receptacle outlets. That’s four connections, (2 hot conductors & 2 neutral conductors) for each outlet times how many wall outlets from the electrical panel to the wall outlet your equipment is plugged into.

Problem with stab in the back outlets? Piss poor connections. Poor connections? AC high frequency harmonic distortion noise caused from micro arcing in all the stab in the back connections. I didn’t even mention the type of loads plugged into wall outlets on the same branch circuit.

I looked at your equipment profile. I would recommend at least two 20 amp dedicated branch circuits. Maybe three... The big Sony TV with its Switch Mode Power supply isn’t helping the sound from the PS Audio BHK Signature Preamp and the Simaudio Moon 330A Amp. Those two analog and any other analog equipment should have it’s own 20 amp dedicated branch circuit. (Note 20 amp branch circuit.) Labor cost is the same whether 15A or 20A. Even the circuit breakers are the same price. Only difference is the price of the wire gauge used. Labor is the biggest cost. Labor for one circuits does not double for two, or triple for three... It doesn’t work that way. Material costs does though.

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OP:

Depends on the challenges you have.  Honestly I have a multi-level system where the first level has a Furman with AR, but only basic surge protection followed by Elite with power factor correction and advanced surge protection and filtering.  It didn't start out this way until I lived in a high-rise in San Francisco and started measuring 130V out of the wall.  There was nothing the Elite could do about that except shut off if things got too crazy.

Recently had a contractor plug a circular saw onto the same circuit and I watched the voltage after the AR, and it stayed rock solid.  I could see the AR switching transformer taps every time the saw turned on and off, but the gear never felt it.  That's how stable the voltage is.

I've kept the combination ever since.

Best,

Erik

@jea48 I personally replaced all the receptacles in my house with good quality (albeit not audio quality) Leviton receptacles and attached all wires with the screw connections. The original install did use the stab, and I discovered during my installation, some had busted… Not good!  
Good point on what is on the leg I plug into. I will check. Also good point on the cost of 15 vs 20 amp circuit & and multiples thereof. The only issue is my fuse box is becoming overloaded & 2 or 3 20A circuits may require a complete new box. 
@erik_squires Thanks!

@signaforce Sorry about that.  I am an Engineering Manager in the electric power industry with 40+ years experience.  I have degrees in engineering and physics from well respected universities including the University of Chicago (physics, 1980).  Engineers implement physics, physicists actually understand it.  So unfortunately I have to stand by my comments.  I work with engineers daily who do not understand electricity to the level you need to address the somewhat subtle challenges we face in audio.  Tell your nephew to hook up his oscilloscope to the power coming into the house and see if his comments remain the same.

Your rejection of a regenerator for size concerns tells me you're a form-over-function guy.  Looks are more important than how it sounds.  I'm all about sound and I'll find a way to implement the better sounding option, so we speak different languages.

Finally, it seems clear you had made up your mind before you started this thread.  I had a few more technical suggestions but I'll not waste your time.

I wish you the best of luck.

Jerry

The last thing you want to do is get an EE involved. You don't need to be an engineer to listen to music. That being said, there's only one way to handle the situation responsibility. When it comes to power products, you have no idea what will happen when you put something in the system. If you hear a difference, it may not be for the better. All of the recommendations you get here are well meaning and honest, but you just can't rely on someone else's opinion. Give the exact same component to 5 different people and you will get 5 different opinions.

If you live in the US, you should call The Cable Company. They're the biggest high end cable and assessor retailer there is. They keep demo units of everything they sell. So, if you want to buy a new power conditioner, for example, call them and go over your system. They'll make 4 or 5 recommendations and send them to you all at once. Listen to them for a couple of weeks and only make a purchase if you find something that's worth paying for.

One thing I can tell you for certain is you have a fairly complicated system. You're mixing HT and 2 channel, and from a power standpoint, you're going to have some surprises. For example, you may think a new conditioner is going to make a big difference only to find out a power cord for your DVD player does the most good. That's why you have to try everything first.