New listening room electrical design


I'm moving to anew house in a few weeks, and trying to figure out the electrical design.
My current room was designed by Rives and I have numerous dedicated lines in it, so, I'm somewhat familiar with the topic.
The new system proposed outline:
New dedicated subpanel, exclusively for the audio components (main located in the garage, adjacent to the new room).
I have 2 speakers (Avantgarde) with powered subs
2 separate JL Fathom subs
2 mono block amps (lamm ML2)
and number of front end component, locate on stand, that going to be on the side wall
(Preamp, crossover, TT and CD player)
I'm thinking:
Two lines with 2 duplex receptacles each to power avant-garde and JL subs
Two lines with one duplex each for Lamm mono blocks
Here is my main question:
For the preamp, crossover, TT and digital I have the following options:
1.   One line with two duplexes for the analog stuff
       Another line for digital
       3 duplex recptacles on 2 separate lines
2. One line (or two) and one power distribution box with 3-4 duplex receptacle, connected to the wall receptacle
3. Two lines hardwired (no wall receptacle and no IEC and power cord in the Power distr. box) to power distribution box, separating analog from digital receptacles inside the box

What is a better approach for the front end components?
Multiple lines feeding one duplex each,
One line feeding multiple duplexes
One line feeding power distribution box?
maril555
Thanks sbank, I knew that figure cleeds gave was not right.
Maril, for my money, I would go with #3.
As I said a dealer may be a good person to contact for the best info.
Johnny R (audioconnection) is an a Agon member/dealer. I would trust his opinion on anything regarding Hifi.

maril555:

I am sure your new listening room is going to sound fabulous. I hope you are planning to use A/C wall outlets that bring out the best sound in your system . I am currently very happy with the Synergistic Research Black outlets. I found these outlets to be quite good.

Did you ever get an opportunity to try the Entreq Grounding system? I have not tried that approach , but I have tried the Acoustic Revive RG-24 and the Synergistic Research Grounding Block. I do think the SR Grounding Block makes a significant improvement.

I look forward to your reports on how the new room sounds.

David Pritchard

Maril: Some thoughts to consider on your narrower set of questions. If you have one line feeding multiple receptacles or receptacles plus a distribution box, you have the advantage, I think, of eliminating the different grounding potential among separate dedicated lines. I think this is the "British" style, if I can label it as such. Downside would seem to be that you are limited to what- a 20 amp line shared by multiple devices? (Leaving isolation of the digital to one side as you suggested).
You may remember, I also have the ML2 and you are right that they don’t draw a huge amount of power, but I know Vlad always harps about not using conditioning to bottleneck the current to his amps. I don’t know if a shared line (even of all analog) would be limiting.
I also have the Duos (though if I recall, you have newish ones). I wound up installing 4 dedicated lines in my room. The downside to how it was done was that all the lines were bundled together when the conduit was brought up from the basement, so when the air compressor motor for my tonearm kicks on, it affects the other lines. (This came up in another thread- I think Jea had pointed it out). So there are some best practices, not only to gauge, per CLeeds, but other aspects of how the cabling is done, from panel to room.
I’m not sure you can have a local distribution box in the room that is hardwired under applicable code, but Jea, or someone else here with real electrical knowledge and skills can address that better than me.

It’s great fun to plan a new room- i’ve been doing it mentally for several years, waiting to relocate. I guess the biggest limitation is that this stuff is "in wall" and once done, it’s a mess to re-do or add on to. Dunno if that helps....
David,
For now I have some Oyaide R1s and Furutech GTX-D Gold-plated receptacles.
After reading some posts, I got an impression, that Oyaide R1 can be "brittle and lean"?, so, I’m having my doubts about them now.
From what I’m reading about Furutech GTX-D Gold, vs. Rodium plated, I would definitely prefer Gold version to avoid some extra treble emphasis, that people ascribe to Rhodium plated one.
I’m not sure, that the new Furutech GTX- D NFC (that are only Rhodium plated) do have the same character, as the older non- NFC kind.
Many people prefer them over the older version.

Bill,
thanks for your input. I’m leaning toward two separate lines with one receptacle each, for analog and digital, and power distribution box, connected to the "analog’ line, to accommodate additional analog component
I will definitely have I separate line for each Lamm ML2 mono block, and another two separate lines for Avantgarde powered subs and JL subs.
And you probably right about power distribution box being hardwired, as NOT being code compliant.