Power Supply Comparison

Discussion in 'Effects, Pedals, Strings & Things' started by rschultz13, May 6, 2015.

  1. rschultz13

    rschultz13 Supporting Member

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    I know, I know, there are a million of these threads. I'm comparing the VooDoo 4x4, Mondo and Eventide PowerFactor. I have an eye toward powering H9's, they take a 12V x 400 mA outlet.

    4x4 can power 2 H9's (I have this one, for the money it's great)
    Mondo can ONLY power 2 H9's, but has 6 High Current outlets and other bells/whistles.
    PowerFactor 2 can power 4 H9's !!!

    Question: What good are the 200 mA outlets on the Powerfactor 2 ??? Don't most high current DSP effects take a minimum of 250 mA?
     
  2. DaveKS

    DaveKS Member

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    Most people also have other pedals that require way less than 400ma, there's thousands of them out there. You could power 4-5 boost/OD pedals off one of those 200ma outputs.
     
  3. rschultz13

    rschultz13 Supporting Member

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    Right, most analog pedals take 5-20 mA each. I suppose if you used them that way it makes sense. I was thinking of a single DSP pedal.
     
  4. shinksma

    shinksma Member

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  5. jnepo1

    jnepo1 Silver Supporting Member

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    Regarding the 200mA taps, the Boss DD-20 as well as the Strymon El Cap, BlueSky, Lex, Flint, Ola, Decco and Brigadier can be powered via the 200mA tap. Combine them together and you have another 400mA tap.
     
  6. rschultz13

    rschultz13 Supporting Member

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    That may be possible, but all of the small Strymons (except OB.1) require 250 mA, while the bigger ones are 300 mA.
     
  7. jnepo1

    jnepo1 Silver Supporting Member

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    Well, I've actually measure the mA on the Strymons. The smaller Strymons are all under 200mA where the big Strymons can be powered at 250mA. There are many people on the forum that power their big Strymons thru a PP2+ on tap 5 or 6.
     
  8. rschultz13

    rschultz13 Supporting Member

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    Good to know. H9 requires 400mA at 12v or 500mA at 9v, I've read people who say they power it at 400mA at 9v. Probably a margin for error on both the pedal and the supply, both manufacturers playing it safe add up to more margin than necessary.
     
  9. jnepo1

    jnepo1 Silver Supporting Member

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    Correct. I've also measure an Eventide H9 Core: 271mA at 9V
     
  10. rschultz13

    rschultz13 Supporting Member

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    Eventide advertises a startup power need of 4.5W, which at 12v is 380mA. Whereas normal operation is 3.6W, so that's 400mA at 9v or 300mA at 12v. Have you ever measured the startup current?
     
  11. jnepo1

    jnepo1 Silver Supporting Member

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    I have, and it spikes maybe 15mA from all the times I measured it. To say the least, any company will overate the mA as a precaution so as to not starve the pedal of it's actual power requirements. It's unfortunate, but many musicians do not realize even the power requirements of their pedals, they just plug and play and hope all goes well. You've seen the threads here on TGP: "How do you power...." or "Suggest me a power supply for these pedals..."
     
  12. rschultz13

    rschultz13 Supporting Member

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    Wow, 15mA spike on startup is still under 300mA at 9v. Are there other configurations that may draw more current? Mono vs stereo? Expression? Midi in/out? USB? Their requirements seem WAY overkill if the current draw is as you say. I might have to jump over to the Eventide forums to see what they say.
     
  13. NHBluesMan

    NHBluesMan Member

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  14. jnepo1

    jnepo1 Silver Supporting Member

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    Hard to say, maybe the scenarios vary. I would have to recheck the values, etc. but this was based on just plugging in the Core and checking the mA. The spike at start up was hard to determine as it is so fast when reading at start up especially when doing it all by yourself with reading the meter while plugging it in at the same time
     
  15. rschultz13

    rschultz13 Supporting Member

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    Looking at a scope trace is the way to go, but not everyone has a scope to use like that.
     
  16. amz-fx

    amz-fx Supporting Member

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    Some pedals, such as the Boss DD-20, like to be on a power outlet of their own. It isn't due to the current requirements but is more associated with the voltage drop across the power conductors that can lead to oscillations.

    regards, Jack
     

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