New Dedicated Line - Almost No improvement

@laynes 

The heater (or furnace) requires a dual-core breaker when current is 30A or higher. It takes up two breaker positions and uses both Legs of the electrical service.

15 & 20V standard breakers are used in lower current situations.

You listed one Leg in your panel, can you list the other phase?

Electricians when installing a panel try to even the load on each Leg. IOW, They’re trying to achieve close to equal current-draw on each leg. When installing an audio system on one leg, some sacrifices have to be made, such as moving a high amperage appliance which may cause noise to the opposite leg as the audio circuit.

Example:

Courtesy of Glen B, (AA member)

https://www.audioasylum.com/messages/tweaks/146113/re-yes

Here is a photo of the interior of a main lug only panel. Note the breaker connecting bus tie for each each breaker space.

Siemens PN3048L1125C PN Series 125 Amp 30-Space ...

From an above post of mine.

~ ~ ~ ~ ~

As for the layout of the branch circuit breakers in an electrical panel:

Line 1 and Line 2 alternate with one another down each side of the electrical panel.

Odd breaker numbers are on the left side. Even breaker numbers on the right side. If you look closely at the breakers metal panel dead front you should see the numbers. Usually stamped into the metal. If you can’t see them here is how the breakers are numbered. (Note: For standard sized 1" single pole breakers. A 2 pole breaker takes up two 1" spaces.)

 

L1 = Line 1. (Leg, Bus)

L2 = Line 2. (Leg, Bus)

brk = breaker. (Or unused breaker space.)

 

L1 >> brk #1 ...... brk #2

L2 >> brk #3 ....... brk #4

L1 >> brk #5 ....... brk #6

L2 >> brk #7 ....... brk #8

L1 >> brk #9 ....... brk #10

L2 >> brk #11 ..... brk #12

L1 >> brk #13 .... brk #14

And so on down each side of the panel.

Note breaker space #39 and breaker space #40 share the same breaker connecting bus tie. Both 39 and 40 are connected to Line 2 bus, Leg.

Jim

I agree with giving the system more time. I had a new sub panel, wiring etc installed in my basement while we were in the process of finishing it. I took the system I had been listening to for months and moved it into the basement and it sounded horrible. After more play time the system settled in a sounded good again. Wire break in may not make sense on paper but my experience says it is real. Good luck!

@jea48 

Yes, that's how my panel looks.

L1 >> brk #1 ...... brk #2

L2 >> brk #3 ....... brk #4

L1 >> brk #5 ....... brk #6

L2 >> brk #7 ....... brk #8

L1 >> brk #9 ....... brk #10

L2 >> brk #11 ..... brk #12

L1 >> brk #13 .... brk #14

And so on down each side of the panel.

If I provided misleading information, I apologize, it was very late. 

 I didn't realise breaker space #39 and breaker space #40 share the same breaker connecting bus tie. Thanks for the correction.

Jim