20 amp - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

Old 01-26-12, 09:10 PM Thread Starter
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Jim

Join Date: Sep 2010
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Thanks! Can't wait till Saturday when I start up the upa 2.
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Old 01-27-12, 12:22 AM
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Re: 20 amp

Quote:
moparz10 wrote: View Post
Now the question that I can not answer is will that \$\$ power cable make a difference ??
How could a 6 foot Fancy power cable make a difference after the electricity has traveled in a hundred miles of regular wire ?

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Old 01-27-12, 12:27 AM
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Re: 20 amp

Quote:
WooferHound wrote: View Post
How could a 6 foot Fancy power cable make a difference after the electricity has traveled in a hundred miles of regular wire ?
Simply put, high voltage step down via transformers. Just take a quick peak at a simple power transmission guide and you'll get the jist of it.

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Old 01-27-12, 10:26 AM
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SAC

Join Date: Dec 2009
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Re: 20 amp

Quote:
moparz10 wrote: View Post
Now the question that I can not answer is will that \$\$ power cable make a difference ??
So you are suggesting that the stock cord is unable to handle the current load of the unit? Or is it modifying the voltage outside the range which the power supply can address?

And that you were previously overloading the current capacity of the 15 amp circuit and that the most critical ramification was 'audible'? And the breaker did not trip?

The assumption and conclusions presented here are rather 'interesting'. You might start by listing and then totaling the current ratings of each of the devices on the circuit and letting us see what the rated load is on the circuit.

...And the most significant change is that you actually heard a difference...
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Old 01-27-12, 01:07 PM
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Ty

Join Date: Aug 2010
Location: Panama City Fl
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Re: 20 amp

Quote:
SAC wrote: View Post

And that you were previously overloading the current capacity of the 15 amp circuit and that the most critical ramification was 'audible'? And the breaker did not trip?
That surprised me. I figured any component will take all it wants regardless of your breaker size, if it wants more than available the breaker will trip.
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Old 01-27-12, 01:18 PM Thread Starter
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Jim

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Location: Santa clarita,Ca
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Re: 20 amp

the breaker would trip at least once a week, mainly when pretty much everything in the kitchen was on and the wife would turn on her mixer.when it tripped it would take out the kitchen as well as all of my gear and lights in that room.
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Old 01-27-12, 01:29 PM
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Tony

Join Date: Sep 2007
Location: Edmonton, Alberta, Can
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Re: 20 amp

if you start getting close to the breaker tripping there are other issues that can develop, things like noise, and even voltage drop will cause poor sound in receivers and amps.

Home theater:
Onkyo 805, Yamaha YDP2006EQ, Samson Servo 600 amp
3 EV Sentry 500 monitors across the front, 4 Mission 762i's Surrounds, SVS PB13U sub, Panasonic BDT220, Harmony 1100, Nintendo WiiU
Panasonic PT-AE8000 on a 120" 2,35:1 fixed screen

Living room system:
Sherwood/Newcastle R972, Mission 765's, SVS SBS02's, A/D/S MS3u sub, Yamaha YDG2030EQ
Yamaha KX-393 Tape deck, CDC 805 CD changer, Panasonic BD60, Sony turntable PS-T20
Panasonic TC-P50ST60, HD-PVR & WDTV Live, Harmony 900

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Old 01-31-12, 07:59 PM
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Ryan

Join Date: Apr 2009
Location: Eastern Minnesota
Posts: 102
Re: 20 amp

I would be surprised if noise would develop due to loading a circuit heavily - the purpose of a breaker is to prevent the wire from getting too hot and causing a fire, nothing more. I do not see how a high amp load by itself causes noise.

Now, if a mixer was being run on the same circuit and loading it with electrical noise and the power supply of the amp/receiver did not filter incoming noise adequately (which it should) - I can see how that might lead to a problem.

A 100' long, 12 gauge copper wire circuit loaded at 20 amps would see a voltage drop of about 7 volts. That should not be enough voltage sag to cause a problem. If the circuit was longer (1 way) than about 160', then I'd start to get concerned.
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Old 01-31-12, 08:10 PM
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pbc

Join Date: Sep 2007
Posts: 177
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Re: 20 amp

Interesting, not sure I've ever read someone mention that upping the breaker resulted in more headroom. Makes sense I guess given the circuit can provide several hundred more watts?

What did/do you have connected to it?

nm ... guess that's posted in your sig!
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Old 01-31-12, 11:33 PM
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Re: 20 amp

Quote:
NegativeEntropy wrote: View Post
A 100' long, 12 gauge copper wire circuit loaded at 20 amps would see a voltage drop of about 7 volts. That should not be enough voltage sag to cause a problem. If the circuit was longer (1 way) than about 160', then I'd start to get concerned.
He added a new breaker and ran a new 12 ga wire. He may have had 14 gauge wire originally like my house was originally wired with.

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