New Dedicated Line - Almost No improvement

Hi OP, many good thoughts here!  I formerly used an Inakustik 3500p power conditioner.  It did not throttle power and worked great.  I then installed dedicated 20 amp circuits (first two and then I liked them so much I installed another.  I need one duplex for the mono amps, one for the preamp and DAC, then I needed one more for the new streamer, and had other junk so oh well now I have three lines and six outlets.  I removed the power conditioner and found it sounded the same, so it is on the sidelines now.  I guess I am luckier about the noise as my background is dead quiet.  But I do wonder about the Rhodium Furutechs.  My friend got them and did not like them at all.  Sounded harsh and grainy.  I agree they many need burn in.  But how about an easy experiment?  Change one of them to a quality outlet but not Rhodium.  Something like a PS audio outlet (I have them everywhere) or Hubble if you can find one.  They are about 5 for $200 so much less expensive, and grip like nothing else (the PS Audio ones anyway).  These may sound much smoother in your system.  I have a spare outlet pm me if you want to try it!  

I'd add better sound staging and imaging to @steakster list of improvements. I too use isolation transformer type of conditioning  on everything with exception of amps, amps always go straight into their own dedicated 10AWG line.

@laynes In the end you'll just have to try various PC in order to arrive at your own conclusion. I went through an audition period over a couple years and many PC, a variety of effects, transformer based PC best for me. I'd suggest amps never go on pc based on my auditions.

You did not listen to your system before and after the install. Based on my experience and that of many other people dedicated lines always improve the sound. I think you need to believe it very likely your system sounds better than it would have without it. Moving into a new space means everything has changed. Room acoustics power… etc. I wouldn’t pay attention to the meter.

Second, I would while you move is new, have another line put in. Typically one for the amp and one for the rest of the equipment. All direct lines tend to make a big difference.

Next, power conditioner… yes. Very occasionally they don’t do anything… but that is very seldom. After I had my second direct line installed I swapped my 20 year old power conditioner for a high quality power distribution strip (Cardas). That lasted 30 seconds and the power conditioner went back in.

Separate breaker box: No.

It would be great to see your system in its new location. There is a place to put it under your UserID. It is not a fashion show… this is a bunch of audio geeks… so we like to see the equipment and venue.

I agree with @ghdprentice including the adding of another line (same length cable as the others).

Regarding power conditioners, I have (2) 20A dedicated lines and use power conditioning to lower the noise-floor. I live in an old neighborhood in Philly. EquiCore + DeepCore have been very effective. A very important point about power conditioners is not to use them for your amp, unless specifically designed for high-current components. The sonics of an amp can be affected. Only my preamp and sources are plugged into mine.

@laynes , I did not see anywhere where you indicated you have a specific noise issue that you hear?  I disagree with Steakster in terms of what electrical noise will sound like in an all analog system. Noise does not enter an all analog system and cause the issues that were described. If you are hearing nothing in silent passages with an all analog system, then you do not have a power issue. Power noise does not create distortion in an all analog system. It creates noise that is not correlated to the signal.

erik makes a good point. A dedicated line does not prevent noise that appears on your electrical box from getting to your equipment. All those items on their own dedicated lines, which is most of the high power are not helped by a dedicated line. They have benefit when to avoid items like dimmers.

I see many people suggesting multiple dedicated lines. This is more often than not a bad idea. The most important connection for a single piece of equipment is normally line and neutral. The most important connection when several pieces of equipment are hooked together is the ground connection. If you run multiple dedicated lines with separate grounds you have just made grounds loops worse.

You are running a tube integrated, so most of your connections are a single box. It is a good brand, likely with a well designed power supply. If you can't can't hear noise that appears to be power related when silent, then it is unlikely you have a power issue. If the AC is on, the sound noise of the AC is probably much worse than electrical noise.

I do not know what the obsession is with Rhodium in connectors. Audiophiles have some crazy ideas about how things work. If it was better, the military\aerospace would use it in all their connectors. I started out working on military\aerospace electronics. Rhodium is rarely used as a surface material. There are two properties you typically want in a connector interface material. Corrosion/oxidation properties are good, and it is malleable so that is maximizes the contact surface lowering resistance. Two other properties to consider are self lubrication (related to malleability) and wear resistance and impact resistance. You will notice I did not says electrical resistance. The coatings are so thin, 10-200um, that conductivity does not matter much. For any low power connection, gold is a great choice. High corrosion resistance, malleable, some self lubrication. For most power connections, silver is a good choice. Malleable, self lubricating, good corrosion resistance. Only concern is it oxidizes but that oxide is very thin and conductive. Connector wiping action removes typically. Palladium is the next used. It is corrosion resistant, but hard. The hardness in this case is a plus as it can be used when connector ends may be easily damaged. Alloys are also good in arcing conditions (anywhere you plug in live). Rhodium was used in one and only one application. Very rough service, i.e. field items where the contacts could be easily scratched/damaged. If I remember it was always plated on nickel, not for metal diffusion, but because it is brittle and could literally crack off.  There is nothing about a connection anywhere in audio where Rhodium makes sense.

I hope you fix your noise issue if you have it. Erik seems to be on a good low cost path.