Can the Mesa Express run a 16 ohm cab and the internal speaker?

Discussion in 'Amps and Cabs' started by DonaldDemon, May 26, 2015.

  1. DonaldDemon

    DonaldDemon Member

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    If so which output taps do I use?
     
    Last edited: May 27, 2015
  2. ClassicLP

    ClassicLP Member

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    I would say yes, as the manual illustrates this possibilty on page 26. The internal speaker is 8 ohms, connect it to the 4 ohm outs. A 16 ohm cab should get 8 ohm power. Things are is going to sound pretty dark, as the speakers are under powered. There is nothing wrong per se with this kind of mismatch.

    View attachment 1611
     
  3. fezz parka

    fezz parka Member

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    The 8 ohm internal speaker will see most of the power. Not worth doing IMO.
     
  4. DonaldDemon

    DonaldDemon Member

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    Yeah that was the outcome, not worth it indeed. I did see the manual but it didn't look right to me
     
  5. soundchaser59

    soundchaser59 Supporting Member

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    I would daisy chain the two speakers to get a 5 ohm load, then plug into one of the 4 ohm jacks.
     
  6. ClassicLP

    ClassicLP Member

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    Lol ok.
     
  7. DonaldDemon

    DonaldDemon Member

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    Not sure how I would do that given the internal attached speaker cable. I did think about that too.

    I'm still surprised that I have to max out the dirt (crunch mode) channel to keep up with the band. We play a little loud in our practice space but no more than medium size club volumes. I'm hoping it will be louder for Fridays show when I use my 8 ohm 2x12 instead. I remember it having more power with an even match, which makes sense
     
  8. fezz parka

    fezz parka Member

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    The 16 ohm speaker would still see 1/3 of the power. Not worth doing.
     
  9. ClassicLP

    ClassicLP Member

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    Wow, you guys must be loud. Get your amp to point at your ears and consider a closed back cab to direct the sound, if the open back combo is diffusing things too much.[/QUOTE]
     
  10. DonaldDemon

    DonaldDemon Member

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    [/QUOTE]

    I guess so, we do have a large practice space. I brought this volume problem up in another thread, was surprised the Express was struggling. The amp was pointed at me and I was using a 4x12 closed back cab but when I gig with the amp I use a closed-back 2x12.
     
  11. ClassicLP

    ClassicLP Member

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    I guess so, we do have a large practice space. I brought this volume problem up in another thread, was surprised the Express was struggling. The amp was pointed at me and I was using a 4x12 closed back cab but when I gig with the amp I use a closed-back 2x12.[/QUOTE]

    Metal band?

    Ah... Listened to your tunes. Nice work. I bet that drummer is a bit thunderous.
     
    Last edited: May 27, 2015
  12. DonaldDemon

    DonaldDemon Member

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    Metal band?

    Ah... Listened to your tunes. Nice work. I bet that drummer is a bit thunderous.[/QUOTE]

    Thanks! Our original stuff is on the heavy side but the Splawn Pro Mod get those duties. The Mesa is actually used for our cover gigs which are more in line with classic rock with a little old school metal thrown in, nothing crazy really. But yes, he is a heavey hitter lol
     
  13. Waxhead

    Waxhead Member

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    Mesa Express 5:50 yes.
    I've been running a custom made 2x12 Cab with V30's & the combo speaker at same time for 5 yrs.
    Works great & has had no -ve effect on the amp.
    I run the 16 ohm cab thru the spare 8 ohm jack on amp.
    No issues with a mis match & Mesa even encourage you to experiment.

    The 16 ohm cab sees 48% of the power & is equally as loud as the combo speaker.
    My amp & cab builder did full tests on it before & after I had the cab made :)

    Big improvement at gigs cos you got a 2x12 cab on other side of stage and your amp with you
     
  14. ClassicLP

    ClassicLP Member

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    All true. That is why I posted the manual.
     
  15. soundchaser59

    soundchaser59 Supporting Member

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    You can get a significant volume boost by putting a clean boost in the fx loop.
     

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