Installing dedicated 10 gauge lines

I am a retired lifelong carpenter/ building Contractor. I also ran my own line in my house after it was built. As @winoguy17 says, You can go through the crawlspace (if you have one) If Not then go through the the attic. There will be no need to cut Sheetrock except the hole for the remodel box. If you have a 2 story house and trying to put this on the 1st floor in a home without a crawlspace, it can still be done without much cutting of Sheetrock. This will take a lot of measurements and planning and is not for the typical DIYer.

Depending on where you live and how strict the codes are, an electrician should be able to do this for maybe $750-$1k. The later situation I spoke of will be more $$$, maybe double that price. One caveat is that this cannot be done in exterior walls due to the insulation without removing Sheetrock. Of course , the price then increases to double or more. Again, its all dependent on where you live and the bureaucracy & codes. Also some city codes are very cumbersome and this too raises the price.

Also, I agree with @helmholtzsoul concerning the 12g wiring. Most outlets will not accept 10 g  and you would have to junction it over to 12 g anyway. Good luck

For the Diablo, consider having it adjusted to run with 240V and running 12/2 Romex instead of 10/2. Using 240V / 20A circuit the Diablo 300 will require a 6.3A fuse, which leaves a big ratio between circuit capacity and amp needs of about 3:1.  This ratio is actually a bit better than you'd get with 10/2 at 120V:  30 Amps possible / 12A needed, so closer to 2:1

In addition, running 240V the voltage drop will be halved for the same distance given the Diablo 300. A much stiffer situation.

Best,

Erik

Thanks for the advice All. Unfortunately there is no crawlspace, between my room and the ground floor,  and no attic as there are vaulted ceilings with spray foam insulation. There is no access from the ground floor as it is completely finished…

Thanks Erik for the tips especially regarding 240V. I would not have thought of that.

Electricians are good at fishing wires into walls, either from in the crawl space, if you have one, or your attic. Or surface mounted conduit on an exterior wall, there are a lot of possibilities. Removing drywall from the panel to your new dedicated outlets would be about the poorest option, unless the two are in adjacent rooms. Ask around where you live, get a name or two of a good electrician. For electrical advice, ignore 90% of what’s posted here at Audiogon. A few folks will burn your house down, others will only electrocute you, lol.

nyev, do I understand that your audio room is on a 2nd floor? If so, is the wall you want the new outlets in an interior wall?