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Roadready modification for 3015s

Discussion in 'Amps [BG]' started by virginiacreeper, Jan 5, 2014.

  1. virginiacreeper

    virginiacreeper Supporting Member

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    So, I'm picking up an empty Mesa RR 215 today and have a couple of Eminence 3015s (non LF) I'd like to throw in there. I understand a larger port area is optimal to match these speakers to this cabinet. Is anybody familiar with a way to do this without completely dismantling the cab? I imagine an additional port hole/tube set up.
    Thanks!
  2. georgestrings

    georgestrings Supporting Member

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    I'm doing the same thing on a RR115 - I used a Rotozip tool and wood cutting blade for the cut across the baffleboard, and finished that cut to the edges with a new drywall saw... I pretty much busted out the "uprights" with a framing hammer, and am in the process of making what I need to increase my port area to 3" high... I'll then experiment with the length of the port for best response... The process isn't for the faint hearted, btw - but is doable for someone with decent carpentry and mechanical skills...

    I'm using a Kappa-15LFA instead of a 3015, but AFAIK, they act fairly similar...


    - georgestrings
  3. virginiacreeper

    virginiacreeper Supporting Member

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    Thanks. I've built a couple of TL-606 cabs, so I could redo the Mesa but I was hoping to do something less invasive and possibly more reversible. Wouldn't adding circular ports provide additional port area without having to reconstruct the cab?
  4. B-string

    B-string Supporting Member

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    IIRC the Mesa uses shelf ports? Mixing shelf and round ports usually doesn't end well. Use one or the other.
  5. Chef

    Chef Moderator Supporting Member

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    Disclosures:
    Staff Reviewer; Bass Gear Magazine
    I put 3015's in my Mesa Diesel 115 boxes.
    That worked really well, with no mods.
    They are shelf ports, like a TL606, and they are designed to be "tunable" via shutting the center portion of that. Which I never tried.

    I think the RR is essentially the same box.

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