Mesa Mark IV, 16 ohm Hot Plate and 8 ohm cab

Discussion in 'Amps and Cabs' started by Random Hero, Apr 17, 2008.

  1. Random Hero

    Random Hero Member

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    How should I run this exactly?

    I borrowed a Hot Plate from a friend and it's 16 ohm. The IV has a 16 ohm output if that helps, but my cab is 8 ohm.
     
  2. pluto

    pluto Member

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    Put amp at 8 ohms, that's all.
     
  3. blackba

    blackba Supporting Member

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    Your mark IV has a 16ohm output, are you sure? My mark IVA only has a 4ohm and 8ohm output.

    I would PM Ed and see what the THD guru has to say....
     
  4. pluto

    pluto Member

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    My Mark IV only had 4 and 8 ohm outputs too. But, since his cab is 8 ohms, he just has to set his amp output at 8 ohms which the Mark IV has for sure. Per the manual, the impedence of the hotplate does not have to match the amp/cab so long as the imp. of the hotplate is equal to or greater than the amp/cab.
    http://www.thdelectronics.com/pdf/HP Manual 060405.pdf
    When I used to own a 4 ohm cab, I actually liked the 8 ohm hotplate better than the 4 ohm hotplate! Weird since the eq will not be optimized, but that's the way my deaf/bad ears heard.
     
  5. hamfist

    hamfist Member

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    Yup, this is what the manual says. I use 8 ohm amp and cab with 16 ohm hotplate. All is well.
     
  6. Random Hero

    Random Hero Member

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    Hey sorry, I did this blind. My Mark IV has two 4 ohm and one 8 ohm. Apologies for that.

    So I just run it at 8 ohm as per usual, through the Hot Plate?
     

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