I have a head that has selectable 16/8/4ohms out on it. And I have two cabs that are 8 ohms each. I know if I run those two cabs it will make a 4 ohm load. But I want to run 3 cabs. what should the ohms be for the 3rd cab, so i can either run the 3rd cab with another 8 ohm cab, or two 8 ohm cabs, and still have the entire load be either 16/8/4.

Thanks
Drake

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Hm I don't think you can hook up an amp with an odd number of speaker cabinets together unless the speakers inside of them are hard-wired (physically) together somehow to create a load of the exact ohmage your amp needs on each of the 2 outputs your amp has. I think it might be more trouble than its worth, why not sell 2 of your cabs and get a 6x12 to pair with your other 4x12?

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Im wanting to load a monitor with a vintage 30 and an attenuator so that I can have complete control of how much of my guitar I get at the front of the stage. so It would be either one or two 4x12s and a 1x12.

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you cant do it unless you get 16 ohm cabs.

Just put one of your 4x12's closer to you so it acts as a monitor.

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So say I get my cabs rewired to 16ohms, how would I do it then?

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What head do you have? Most heads are not ment to push more than two cabs. Or so you'd assume considering the speaker jack layouts. Not saying it's impossible. But you'll have to do some jimmy rigging so that your head "sees" two of your cabs as "one cab" by "daisy chaining" them.

For example, if you run them right, if you daisy chained two 8 ohm cabs, that can be seen buy your head as one 16 ohm load. Then if your other cab is a 16 ohm cab. All you'd have to do is set your head for 8 ohms and you're set.

Or... You could just get a small poweramp to push your 1x12 up front. Running a line out or FX loop out of your head. This would be ideal since you could control the volume you get up front separately from what your half or full stack is pushing out.

I'm not trying to discourage you from using a whole shit ton of speakers. But you really just have to take into consideration how practical it all is. Any head 50w or more pushing a 4x12 should be plenty for any venue. If you require any more volume than that can put out, you'll probably be mic'd up anyways.

Anything from house shows to big clubs, I've never needed more than a half stack.

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