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  1. #1

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    Default 20 amp breaker...does it make a difference?

    Now that I have my Krell KAV 250a back up & running it has really impressed me. Currently it is running of a 15 amp breaker. Would going to a dedicated 20 amp breaker make that much of a difference? I'm figuring on a $200 or so bill to hire an electrician to do the job. Sound about right?
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  2. #2
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    yes and yes!

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    Default

    Ok, then why 20 over 15 when the draw is low. I'm in the same boat and am contemplating a 15 or 20 amp dedicated circuit and am undecided at this point.
    Michael ;)
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  4. #4
    GV#27
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    Quote Originally Posted by janmike View Post
    Ok, then why 20 over 15 when the draw is low. I'm in the same boat and am contemplating a 15 or 20 amp dedicated circuit and am undecided at this point.
    If the 15 amp breaker is not nuisance trippping then no need to upgrade to a 20 amp.But what I think he is asking is,will upgrading the wiring to 20 amp rating 12 awg or (10 awg) be benificial.With a big power amp yes I think it is a worthwhile upgrade.

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    Quote Originally Posted by GV#27 View Post
    If the 15 amp breaker is not nuisance trippping then no need to upgrade to a 20 amp.But what I think he is asking is,will upgrading the wiring to 20 amp rating 12 awg or (10 awg) be benificial.With a big power amp yes I think it is a worthwhile upgrade.
    I agree. But around here, 12 awg is required for all outlet wiring, whether you use 20 amp breakers or 15 amp breakers. I thought this was pretty standard. 14 awg is allowed for lighting only.

    I would think if his house already had 12 awg, all he needs to do is install 20 amp breakers, and 20 amp outlets. But if the breaker is not tripping, this won't change a thing, performance wise.

  6. #6

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    Default

    It's the 'dedicated' part that makes it so special.
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  7. #7
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    Quote Originally Posted by WilliamM2 View Post
    But around here, 12 awg is required for all outlet wiring, whether you use 20 amp breakers or 15 amp breakers.
    Wise
    I thought this was pretty standard.
    Not around here unless the code has recently changed.14 awg is used on all 15 amp outlets and lighting.

  8. #8
    GV#27
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    Quote Originally Posted by wingnut4772 View Post
    It's the 'dedicated' part that makes it so special.
    You can make most oulets a dedicated by simply not using the other outlets.:D

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    Quote Originally Posted by GV#27 View Post
    Wise
    Not around here unless the code has recently changed.14 awg is used on all 15 amp outlets and lighting.
    I don't know if it has changed or not, but it was the code here when I added an addition last year. Maybe one of the resident electricians here knows.

    Oddly, my house was biult in 1975, and all the existing wiring was 12 awg, 20 amp breakers, but 15 amp outlets. Even all the lighting is 12 awg. Maybe the builder was just a big spender?

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    Phil don't forget to use hospital grade outlets too.

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    GV#27
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    Quote Originally Posted by WilliamM2 View Post
    Maybe the builder was just a big spender?
    Or owned shares in a copper company.

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    Quote Originally Posted by hearingimpared View Post
    Phil don't forget to use hospital grade outlets too.
    Where are you buying these Joe. I did see one on PartExpress and they wanted almost $150 for it. I cannot find anything in this town except the standard $15 ones.
    Michael ;)
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  13. #13
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    Quote Originally Posted by janmike View Post
    Where are you buying these Joe. I did see one on PartExpress and they wanted almost $150 for it. I cannot find anything in this town except the standard $15 ones.
    I bought one of the Hubbles from these guys. http://www.partsconnexion.com/catalog/ac_products.htmlClick on the link and at the bottom of page click on Hubbell.


    I think I paid $17 the company is in Oakville Ont.
    Last edited by GV#27; 01-12-2008 at 05:14 PM.

  14. #14
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    Quote Originally Posted by janmike View Post
    Where are you buying these Joe. I did see one on PartExpress and they wanted almost $150 for it. I cannot find anything in this town except the standard $15 ones.
    Naaaa, they are all over the internet for $40.

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    Default

    Let's define "Big Amp" first. What power ratings and manufacturer's products would qualify and benefit from this type of "upgrade?"
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    Krell is for losers :D

    How bout that pre amp shootout? I have big $ riding on it and need some new IC's.
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    I upgraded to 2 dedicated 15amp breakers for our HT. The family friend/electrician said it would just mean it would take more to trip the breaker at 20amps so 15 is safer. The best bet is to upgrade the wire. So that is what I did. Mind you at this house for some reason I never have reached 120 om my panamax.......even before the change....

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    Not worth the cost or effort unless it's constantly tripping. Now perhaps a small nuclear generating station might be in order :D
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

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  19. #19
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    My Kav250A is hooked up on a 15 amp circuit and it has NEVER tripped the breaker. The lights do dim a little when the amp first is powered on though. (And, I am driving a 4-ohm load).
    Last edited by rskarvan; 01-12-2008 at 10:21 PM.

  20. #20
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    Quote Originally Posted by Ethancf View Post
    Let's define "Big Amp" first. What power ratings and manufacturer's products would qualify and benefit from this type of "upgrade?"
    I think this qualifies http://www.bryston.ca/14bsst_m.html they make a version for use with a 20 amp circuit(upgraded internal breaker and fusing).But the real benifit of the extra available current may only be realized when driving 4 ohm loads.

  21. #21

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    Quote Originally Posted by venomclan View Post
    Krell is for losers :D

    How bout that pre amp shootout? I have big $ riding on it and need some new IC's.
    Venom
    Hey Venom, maybe you were on vacation, because Mike already had the drawing & janmike was the lucky winner.

    I PM'ed Mike & told him I would still be a while on making my decision. I like them both & it's tougher than I had expected. I suggested that he go ahead & call it a tie & pick a winner from all who entered.

    Also I told Mike that I was expecting my Cambridge Audio 840c shortly & I wanted to add that to the mix. It would have really slowed things down. Some guys were getting ansy so Mike went ahead & had the drawing.

    I'll still let you guys know which one prevails. They both have their +/- which has really been playing havic on choising one. I'm real curious how the 840c will sound using balanced with the Krell & single ended with the CJ. Maybe if there is a big difference in the sound between the two will help put this matter to rest.
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  22. #22
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    I'm dying to hear it!!!

  23. #23

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    But I have bets running on other forums, and with my bookie in LV.

    The CJ must be good to hold its own against the synergy and balanced connections of the Krells. It is a tough decision, that is why I am moving to Utah where polygamy is not as frowned upon. :)
    Venom
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    Quote Originally Posted by GV#27 View Post
    You can make most oulets a dedicated by simply not using the other outlets.:D
    O.k. I don't know how practical that is. Besides would just having a lot of extra unused outlets add noise?
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  25. #25
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    Quote Originally Posted by wingnut4772 View Post
    O.k. I don't know how practical that is.
    I forgot the smiley at the end of my post.It would not be practical as likely some of the outlets would be needed.
    Besides would just having a lot of extra unused outlets add noise?
    No.

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    Quote Originally Posted by GV#27 View Post
    I forgot the smiley at the end of my post.It would not be practical as likely some of outlets would needed.
    No.
    Ahhh. I was just thinking it through.:)
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