EL 20/20 power amp

Discussion in 'Marshall Amps' started by Frank 20/20, Nov 30, 2020.

  1. Frank 20/20

    Frank 20/20 New Member

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    Could someone please help with a question about EL84 20/20 rack amp, I have just acquired a second one of these and my original one blows the fan air out of the front of the amp but the one I've just bought is sucking the air in through the front grill, which is correct.
    Thanks
     
  2. South Park

    South Park Well-Known Member

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    All cooling fans pull air to cool remove heat . For some reason this works better then pushing air to remove heat .
     
  3. marshallmellowed

    marshallmellowed Well-Known Member

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    Don't know which is correct, but my guess is that, if the fan is located in the back, it should be blowing out the back, and visa versa. In a "typical" configuration, the fan pulls air through a chassis, it doesn't blow air into a chassis.
     
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  4. Frank 20/20

    Frank 20/20 New Member

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    Thanks for your comment, I'm sure someone on the forum will have the same amp and be able to tell me the direction of air flow through the amp.
    Regards
     
  5. Gene Ballzz

    Gene Ballzz Well-Known Member

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    Not "All" of them. It would be nice if threre was an industry standard, but sadly, that's not currently the case! You are correct that pulling heat out is better than pushing air in!
    Just Coolin'
    Gene
     
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  6. marshallmellowed

    marshallmellowed Well-Known Member

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    After a little searching, it appears the fan is mounted mid-case, not at the front, rear, or side. Based on online photos, and some forum discussions, it seems the direction of air flow is, in through the front vent, across the tubes, and out through the side vent.
     
  7. Frank 20/20

    Frank 20/20 New Member

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    Thank you for your help that's great.
     

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