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I have the following foot pedals:

... and of course would like to add more. :)

I'd like a single power supply to rule power them all (for example this Chord 9Vdc Power Bank).

I'm not necessarily after a recommendation per-sé, as it'll go out of date eventually. However, what should I be checking/looking for when trying to choose one of these adapters so I get one that will work without frying my gear.

I'm thinking adding up amps and checking centre-pin polarity etc, but I don't know for sure.

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This sounds like a shopping reccomendation (which is off-topic here - see the faq). Although, I think it could be possibly be reworded as an on-topic question. –  jadarnel27 Oct 11 '11 at 12:17
    
I've edited the question to try and do as you say. Please let me know if there's anything else that could be modified (or if you wish, make any necessary edits as you see fit). –  Neil Barnwell Oct 11 '11 at 13:57
    
That looks great, +1 =) –  jadarnel27 Oct 11 '11 at 14:04
    
Great, "What should I be checking/looking for?" is exactly how we want these questions to be. –  Matthew Read Oct 11 '11 at 17:15
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2 Answers

I'm powering 10 pedals with a single 1spot power supply. You just have to make sure that you pedal do not consume in total more that power supply output (those mA).

T-rex makes some nice power supplies.

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Cool. Are the pedals all the same or do they have different brands and power requirements? Are they all centre-pin positive? –  Neil Barnwell Oct 11 '11 at 11:58
    
They are center pin negative and they're all different. Korg Pitchblack, CAE MC-404, VoodooLab Microvibe, Fulltone Catalyst, Xotic AC+, Ibanez BC-9, EHX Stereo Pulsar, TC Electronic NovaRepeater. –  elbicho Oct 11 '11 at 13:29
    
+1 for 1 Spot :) –  Hubert Czerski Oct 13 '11 at 6:39
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There are a wide range of companies that produce power supplies suitable for multiple effects. Core factors which should help your decision:

  • What is the total current output? This must be higher than the total current needs of your pedals
  • What is the individual current available? This must be higher than an individual pedal's needs
  • Can it cope with centre positive, centre negative or odd connector types?
  • How robust is it?
  • How heavy is it?
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