Isolated or dedicated lines for audio ?


Re wiring all 3 systems in my home for audio. I have one side claiming its best to do an isolated and one side claims dedicated lines are better . i am no electrical engineer and want to do this once , right . There will be 3 lines / outlets per system. Thanks for any input!
brainwater
I don't know what is meant by isolated, but idealistically, you'd want at least one dedicated line for your amp, one for digital, and one for your other analog gear. Preferably all running off the same phase/leg at the service panel.

As long as you're running new lines, you might consider purchasing some romex/house wiring that has been cryo'ed or double cryo-ed. I've had some in my garage and have not installed it yet, but I would anticipate good results. And it's a very inexpensive upgrade.

You should also consider which outlets to use.

And you may want to consider different grounding options.

I've lifted all the grounds except for the cdp which has provided a tad better sonics than floating all the grounds and than grounding just the preamp.

Before the electrician leaves the job, I'd suggest you have your electrician demonstrate for you that each outlet is in phase, grounded, and the service panel is properly labeled for the given component/outlet.

-IMO
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Stehno,
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I have quite a bit of experience with cryoing various wires and parts and I am a great advocate cryo treatments.
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Do you have much experience with double cryoing ?
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Rgds,
Larry
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A couple of IEC connectors are double-cryo'd but that's it.

I too am a real advocate for cryo-treatments and double.

But Larry it sounds like you have something to share regarding double-cryo-treated parts. Please share.

-IMO
Where is a good source for cryo'd wiring? Solid or stranded, whis is better for this use. So far the only place I've found is JPS labs at 1.50 per foot each. If you make two 20amp runs, any harm in having a common ground for both outlets? Grounds (and neutral) always wind up on the same buss later anyway.
Brainwater, It depends on what you want. Dedicated is usually just 12-2 with/ground or 10-2 w/grd romex. Use a good quality receptacle like Porter Ports, or a good quality 20 amp hosp grade duplex receptacle.

Dedicated circuit with an isolated ground is usually installed in metallic conduit, either EMT or MC flexible conduit. Conduit is used to help shield RF noise. In this case an isolated ground type receptacle is used. The receptacle equipment ground wire is an insulated wire.

One thing to consider in either case is the length of the branch circuit runs. Long runs tend to invite ground loop problems. If the runs are long sometimes the equipment ground wires will need to be tied together at the outlet rough-in boxes, that tends to mute the isolated insulated ground application.

Jim
thanks everyone , brent
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One more note. It is well worth it to buy the wiring and send it off to be double cryoed (www.cryogenicsinternational.com) before installing the wiring. It is a great improvement over non-cryoed wire. Since this is a one shot deal, you should do the cryoing since you will not want to re-do the wiring later.
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Keep one more thought in mind. The dedicated lines will take time to break in just as would any interconnect, spearker wire or power cord. A neat trick is to get the wire, get it cryoed and then terminate it with a male and female plugs and then run your refrigerator with the wire until you install the wiring (the longer on the refrigerator the better, 3-4 weeks would be great, longer would be better).
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Rgds,
Larry
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thanks larry
Cello, can you shed any light on this?

For wire, does flexing the wire after cryoing undue the effect? For example, it would be impossible to pull 10 ga solid core AC wire through EMT with bends without considerable flexing.
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Zargon,
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I do not have any experience or knowledge about the effect of pulling wire on the Cryo effect. I do know that any time I move power cords, interconnects and especially speaker wires around a bunch (flex etc), it takes a few days for the sound in my system to "settle" back to its normal sound.
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Maybe someone who has experience with this can chime in.
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Rgds,
Larry
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vh audio has cryo treated romex.