Dedicated line questions...

It was a lot easier for me to run my dedicated circuits. I ran 6. You don't want to have dimmer switches, or other appliances on the same audio circuit. I live in a log home with a crawl space. You can actually walk in when entering, then it becomes more of a crawl. I ran my 10awg (exterior wire) from the breaker box, 6 20amp breakers, carefully stapled the wire to the floor joist. I had drilled the holes close to the exterior log wall, pushed all the wires through the pine floor, make sure you leave enough on each end. I used Furutech NFC Rhodium outlets. I even soldered the ground connector, and spade connectors as to have a proper contact. OCD all the way! I just mounted the junction boxes to the wall. I wrapped all the wire in black. what you do see has a retro look. With drywall or fishing wire through it would be a lot harder to do! All these things, cables, outlets, dedicated circuits are accumulative. If you have a revealing system all these things make incremental improvements. 

spatialking323 posts

01-08-2021
7:09pm

I have read through this post and I noticed some folks here use both lines from the distribution panel. That is, line 1, line 2, neutral, and earth, such as would be wired when using the Southwire 10 awg, 3 wire. Since line 1 and line 2 are opposite in phase for North America (and anywhere else where split phase lines are used) that means hum is more likely to occur since the outlets are no longer identical polarization.

@spatialking
I suggest you reread the thread again. No one mentions using both Lines, legs, (therein a 120/240V multiwire branch circuit), to feed a single dedicated 120V branch circuit.

I think you misunderstood what @gs5556 meant when he recommended using 10-3 with ground Romex for a 120V dedicated branch circuit.

FWIW, 3 conductor with ground NM sheathed cable (Romex is a Trade Name of Southwire) is not designed/manufactured only for use for 120/240V multiwire branch circuits. 3 conductor with ground is also used for 3 way switching of lighting as well as split duplex receptacle(s) switching for table lamps. Top receptacle of duplex is hot all the time, bottom receptacle is switched by a wall switch.
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Just run 10awg from a 20amp breaker to a quality outlet. For my monoblocks I only use one inlet per outlet. I'm able to this because I wanted more than enough outlets. I separate analog/digital per circuits. This is not that difficult.

Yeah, in theory it is a piece of cake. Very simple. Unfortunately for me, actually running the wire would be very challenging.

That's the difficult part. As mentioned myself and some others on this thread have crawl spaces that make running the wire a lot easier. I don't know the layout of your house, but I have heard of guys running external 10awg and navigate the wire from the outside in.