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New Vox AC15 Rig Build + Plans

Discussion in 'Amp Central Station' started by sbroom, Jan 7, 2019.

  1. sbroom

    sbroom TDPRI Member

    Age:
    31
    Posts:
    16
    Joined:
    Aug 4, 2016
    Location:
    Utah
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    I've been sort of a fly on the wall on this and other forums for a long time. I built a Vox AC15 into a Head and vertical 2x12 cabinet based on the multitude of information, and I just thought I'd share.

    First, I have been playing through my Vox ac15 for a few years now. I changed out the speaker I bought it with for a Celestion Gold Alnico. I love the sweet alnico sound, and it's worked well for the styles I play; blues and classic rock. Recently I determined that my single notes sound too thin I also determined my bottom end wasn't tight enough (also on my amp's sound;)). I decided it was time to beef up my tone a bit, to have bigger sound on the table for when I want it. SO, after much research, I designed a Head+Cab combo for my AC15:

    I decided to reduce the footprint of the 2X12 cab and improve the lateral sound distribution by making it a mesa-style upright. I decided to use my Gold Alnico and a Greenback, with the Greenback on top.

    I'm a cheapskate, so I picked up regular interior-grade birch cabinet plywood. I used 3/4" on everything but the baffle and the top and bottom of the head. My plans used two 2'x4' sheets of 3/4" and on 2'x4' sheet of 1/2" (see my plans at the bottom).

    I decided ahead of time that I wanted side handles on the cab and casters, and that I would install the input inside one of the handles. I also decided to stain at first, rather than cover with tolex, but to smooth the edges and corners such that I could at tolex and corner protectors later if I wanted. I left the baffle partially floating in the corners. I'm glad I did!

    For the head, I wanted to modify the amp panel as little as possible, but I've always been annoyed with the control panel being on the back/top of the amp, so the solution: roll it forward so the controls are on the front. That does run the tubes horizontal, but I understand that unless the tube manufacturer specifically says the tube has to be upright, it's ok. I have not seen any ill effects. The other issue is that the outputs and the power chord come through the top. I considered re-routing them, but then decided to h*** with it, and cut holes in the top. I did relocate the ohm switch to the bottom/back to make it accessible. I lined all of the areas of plywood near the transformers and the tubes with 2 sheets of aluminum foil to protect against head.

    I did all joints simple, with screws and glue. I used finishing screws and countersunk them. I filled the holes before I sanded. You can't even see them now.

    Here are some pictures and my plans I made to work from (Next post)
     
    stnmtthw likes this.
  2. sbroom

    sbroom TDPRI Member

    Age:
    31
    Posts:
    16
    Joined:
    Aug 4, 2016
    Location:
    Utah
    Assembling the cab
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    The cab and head assembled
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    Marking 11" holes for the speakers
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    Painted baffle, checking fit
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    Putting the amp together (upside down) to check fit
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    after final sand, Staining
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    Added side handles, and put the input in the right side as you face the amp, to match the side of the output on the amp
    [​IMG]

    Assembled!
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    Put in speakers, wired parallel (soldered!), and covered ~70% of the back, vertically
    [​IMG]

    Plans:

    [​IMG]
    [​IMG] [​IMG]

    I loved the sound, but ended up deciding the Greenback wasn't keeping up with the Gold Alnico enough, so I sold the Greenback and just ordered a G12H30. Hoping that adds the low end I want, and balances the Gold!
     
    AAT65 and edchavez like this.
  3. AAT65

    AAT65 Poster Extraordinaire

    Posts:
    5,077
    Joined:
    May 29, 2016
    Location:
    West Lothian, Scotland
    Fantastic — and slightly bizarre (in a very good way!). Nice work!
     
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