Getting all my gear powered...properly

Discussion in 'Microphones (live or studio)' started by redrabbit, Jun 21, 2005.

  • AT5047

    The New AT5047 Premier Studio Microphone Purity Transformed

  1. redrabbit

    redrabbit Active Member

    Apr 24, 2004
    I'm merging my two rigs together. They were at different locations.
    So now I have a zillion power plugs, and I think it's going to be too much for one 15amp circuit (wall outlet).

    I need to calculate my power needs. I've read that a circiut using 14 guage wire is:
    (volts x amps = watts)
    120 x 15 = 1800

    From here, where do I go?

    (1) Am I to add all the gear's watts (as stated on the gear's back panels)??

    (2) I'm assuming the 'stated' wattage is "at full power", not for gear in an idle state. Is this true?

    It's very possible I will exceed this, and will need to use another circuit, which brings me to my next worry - a ground loop.

    (3) When using two different circuits (from one main breaker box), what is the easiest way to deal with a loop?...keeping in mind this is not my house (rental), I don't want to add new lines.

    ....About my system...I am using mostly unbalanced audio connections......many older effects, mono synths, computer,etc.....and the few that have balanced in/outs I am tying "cold to ground" to achieve unbalanced operation, and have no probs there.

    There is one more possibility....there are workers digging a trench (2 1/2 foot deep) outside my window.

    (3) Could I lay a grounding rod in there (horizontally) , and use that as an isolated ground? Would I need to change the outlets to "isolated ground" types, or could I rig something up "home-style" temporarily?

    One final Q:

    (4) I'm getting some audible interference which sounds like of the cell phone type, a faint.....",,click,click,......" (like when you hold your cell phone close to some gear).......but it happens even when MY cell if my house being bugged? :eek:
    Is there a way to eliminate that?

    thanks so much,

  2. Big_D

    Big_D Well-Known Member

    Aug 21, 2004
    Quakertown PA
    Hi Red, I'm going to move this to the Recording Studio Forum as Davedog is the best one to help you with this and he's more likely to notice it there. Good Luck
  3. redrabbit

    redrabbit Active Member

    Apr 24, 2004
    thx Big_D.

    I have not been home to add up all the wattage yet, but I've been told that I can exceed the 1800 watt @ 15amp threshold because the gear's stated wattage is for "full power" and I'll probably never, ever meet that. But the question is how much over can it exceed?

    I've currently got about 20 wall warts, and 15 (120v) power plugs going into one 15amp outlet....2 of them being 100 watt amps.
    I'll be adding a computer (460w supply), a lcd monitor, and possibly 2 mono amps @ 175w each (I'll not need one of the 100 watters in that case).

  4. redrabbit

    redrabbit Active Member

    Apr 24, 2004
    I'm installing today. Any advice would be appreciated. Thanks.


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