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Dedicated Lines - Sub panel or no?

Hi folks,

In a few months time I will be moving to a new home, where a spare bedroom and an understanding wife will enable me to enjoy the luxury of a dedicated listening room.

The first thing that comes to mind is installing 4 dedicated 20A lines. The breaker panel is on the ground floor, the room is on the 3rd.

I'm wondering which is better:

-to run all four lines from the breaker box all the way to the wall outlets,

-or install a sub-panel (is that the right term?) in the room, and use a single, very heavy guage line from the breaker box to the subpanel, then run 4 short lengths of 10 or 12 gauge from the subpanel to the outlets.

Thanks in advance for your advice

Kind Regards
Mick
128x128mickey_sg
zargon's avatar
zargon
453 posts
 
No electrical system is worth $30K.

I put in a 4KVA iso, a 125va iso, a subpanel, and 6 dedicated lines, and 6 Porter Ports for under $1K.

Here is one link of very very many to supply houses with steep discounts on iso tranformers. It is best to find one local to avoid shipping these heavy beasts.

Surplus ISO Transformers

.
ngjockey
1,042 posts
 
No clue about electrical requirements in Singapore but check this out. Surge protection, regulation, isolation and breakers included.

http://cgi.ebay.com/Topaz-7-5-kVA-Power-Conditioner-Isolation-Transformer_W0QQitemZ330314111193QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item330314111193&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A10%7C39%3A1%7C240%3A1318
hevac1
812 posts
 
Zargon
I tried what you are doing and the cost of electricity was so high it was cost prohibitive. My bill went from 350 to over 600. The transformer ran at 5 amps static with no load,
I tried relays for on off but the breaker tripped on startup at times so I did not go that way. My Av P300 alone draws 300 watts. Just wondering.
ngjockey
1,042 posts
 
Hevac1: Did the xformer make a lot of noise and heat?

When I moved, I had mine hooked up to 120V just as I had before but it made noise and heat. It was getting saturated. Rewired for 240V and it's dead quiet and only slightly warm, like before the move. Efficiency is over 95%. Transformers can be picky.
ngjockey
1,042 posts
 
The only group 4 (50Hz) Sola HD on EBay.

http://cgi.ebay.com/EGS-Sola-Constant-Voltage-Power-Conditioner-63-23-775-8_W0QQitemZ400038861928QQcmdZViewItemQQptZLH

Way over your needs, even if you went to balanced AC output. 480 lbs!
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