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Advice- wiring for dedicated sound room

I'm building a house at present and am almost ready to start discussions with our electrician. I'll have a 19'x24' with 9' ceiling dedicated soundroom/theater. (No windows!)

I'm asking for advice on wiring it up just right from the box to the walls. Obviously, I know I'll need some dedicated lines and I do intend to use hospital grade 20 amp outlets. The house is to have a 440 supply. Should I suggest a 10 ga Romex vs. any other options?
What about grounding?
Any comment on breaker types for best performance, or the addition of fuses outside the box?

In the soundroom itself, if I use the hospital grade outlets, should I still use my conditioner, sequencer (Adcom 515)and connect my equiptment that way. Would I lose the advantage of the outlets and current flow if I don't hook directly to them?.

Thanks for any ideas.
audioken
evo845
70 posts
 
Sean.. with all your knowledge and equipment to the pursuit of audio nirvana why haven,t you switched to fuses.Fuses is a giant leap forward in this.
steve
metaphysics
192 posts
 
Glen, you state that you are a professional electrician, yet you also state that you "Then ground to a seperate ground rod independent of your service ground" every time.

You had better hope your local inspector doesn't read this as this is not code and can be dangerous due to different ground potentials. However, I agree with you that there may be some sonic benefit so I am going to be doing it in my system.
abstract7
541 posts
 
The transformer I used was designed to run in this balanced mode. Again, it was designed for medical equipment, so noise and balanced topology are really what is needed. It's also designed way beyond it's rating of 30 amps at 220 volts. I did do a search with Allied electronics and found several toroidal transformers which should work the same way. Keep in mind this balanced design is not really that big of a deal. The 220V circuits are balanced topology with two poles at 110V. All the transformer is doing is stepping down both of those poles to 55V at double the amperage (minus the loss in the torodial coils).
jdwek
84 posts
 
Assuming that these wires are accessible and not hidden in dry wall, or plaster, approximately how much would say work like this would cost? How much is the equipment?

Thanks.

jd
abstract7
541 posts
 
Mine cost me about $500 plus I supplied the transformer and EMI/RFI filters. I was having other work done, so it was relatively inexpensive. Also, the distance from my incoming power to the audioroom is only about 25 feet. I don't recall the prices of the transformers, but if you go to the Allied website there are several that should work, depending on your power requirements.
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