Dedicated circuit


Wonder how many folks put in a dedicated line for their hifi. I added a 20 amp home run years ago, cost under $200 and the results were incredible. I swore off high priced power cords after that.
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I agree that dedicated circuits make a difference, but I disagree that quality cables are then unnecessary. My experience is that having a dedicated circuit actually enhances the effectiveness of power cords and conditioners.
I have two dedicated circuits, one for my amps and a separate one for my front end. I agree w/ Brauser that far from obviating the effectiveness of power cords and conditioners, their effect is more noticeable. Good luck.
I have three circuits, one at 20A for each monoblock and another for front end stuff. IMO, this is the biggest bang for the buck on the power side of things and way ahead of fancy cords, outlets and conditioners. Another popular upgrade is a whole house surge protector, which I do not yet have.
I had a dedicated 20a circuit installed with a Porter Port receptacle.I noticed a slight difference but not as big a difference as when I added a nice power cord to my amp a year later.
I have 2 dedicated 20 amp circuits for my system. One for the amp and pre which are plugged into a Shunyata Hydra 2 and one for my source components which are plugged into a Shunyata Hydra 4. I have an old house with older wiring, so when I had my service changed to 200 amps, it made sense to do this. I use a Shunyata cryo treated outlet on each circuit. I can turn my tube preamp all the way up on any source (with no music playing) and there is total silence.
Ran dedicated lines for system when I initially made the room. As lines were already in upon setting up the system never A/B'ed it with 15A lines.
We moved into an early seventies suburban above ground ranch style home. The town is mostly underground wiring. Before I had done anything I was auditioning the PS Audio HCA-2 class D switching amplifier. The clock radio in the bedroom was picking up interference from the audio system.

Having the mains service increased came with all new cable from the utility source. Code required losing the aluminum wire between the utility breaker and the homes panel.

From there I had a dedicated sub panel that fed both the two channel and HT systems. The runs were 10 gauge metal clad BX terminated with isolated ground (orange) receptacles.

For less than $800 the results were stunning.
What's your checklist of instructions for the electrician when doing the install? I've seen other threads on this.
I have two 20 amp dedicated lines for my audio equipment . One for the analog stuff and the other for digital stuff .
I then used hospital grade duplex receptacles , two for each line . I am now ready to do another dedicated line for the new tv going in for HT .
When you do the dedicated lines , have them done with an isolated ground system . This way you won't suffer from household interference . Things like florescent lights , refrigerators , hairdryers , microwaves etc. can cause noise in the system . This noise is particularly offensive if you have tubed equipment and/or high efficiency speakers .
I Googled 'isolated ground' electrical systems to familiarize myself with it . Then I called an electrician and used my google knowledge to make sure that he did know what to do . I had to let one electrician go because he did not know how to do it . I then wound up having to hire a commercial electrician . Make sure that the isolated ground system grounding rod is at least 6 feet away from the original household one . A few electricians get kind of funny when it comes to installing ground rods . I have seen a few cut the rod in half so that they didn't have to spend a lot of time and effort trying to pound in an 8 ft. rod ,
especially into rocky soil !
And I have tried an aftermarket power chord on my CDP . It made a noticeable improvement .

Good Luck
I meant 6 foot rod .
I Googled 'isolated ground' electrical systems to familiarize myself with it . Then I called an electrician and used my google knowledge to make sure that he did know what to do . I had to let one electrician go because he did not know how to do it . I then wound up having to hire a commercial electrician . Make sure that the isolated ground system grounding rod is at least 6 feet away from the original household one.
08-15-13: Saki70
Saki70,

Isolated ground rod?

Could you be more specific of the wiring method used?

Is the ground rod an isolated earth ground separate from the main electrical grounding system of the electrical service of your home?

Just a FWIW: the way the equipment is designed relative to ground is a lot more important than the grounding in the building!
I have two dedicated lines.It didn't make as big a difference as adding a PorterPort and PSAudio Power Port to them.But I do live in the boonies so not so much grunge on the lines.
"What's your checklist of instructions for the electrician when doing the install? I've seen other threads on this."

My instructions are to do the install. I always provide everything. They only provide labor. I do dictate the pathway but after that, what is there? I like to keep it loose and no tywraps and run a pull wire.