Monoprice stage right v30 cabinet

Discussion in 'Cabinets & Speakers' started by Richard Serrano, Feb 26, 2021.

  1. Richard Serrano

    Richard Serrano New Member

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    Hello all, new to forum but thought I should share.
    Monoprice had a sale yesterday for a v30 1x12 8ohm cabinet for $139. I think this is a steal I bought 2 to use with my DSL1HR. Looks like they sold out but keep an eye out im sure they will come back at this price at some point.
    I plan to purchase a marshall 2x12 cabinet and swapp these speakers in at some point. I want that whole marshall look!
     
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  2. Dogs of Doom

    Dogs of Doom Moderator Staff Member

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    :welcome:to the forum...

    thanks for the tip.

    :cheers:
     
  3. fitz288

    fitz288 Apprentice Fermi's Paradox Analyst Silver Supporting Member

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    :welcome:
    That's a good price, even for the speaker alone.
    The cabs are probably just as good as any low end Marshal MDF box.
    I'd keep them as is and make a little mini stack.
     
  4. Richard Serrano

    Richard Serrano New Member

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    Thats my thought for now but eventually would like a 2x12 cab. They should be here by Tuesday!
     
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  5. Richard Serrano

    Richard Serrano New Member

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    Might be a better place to post this but quick question. Has anyone every tried a palmer cab merger box. Has 2 amp inputs one series one parallel then 2 cab outputs. I ordered one for these cabs as they are 8ohms each and dsl1hr is a 16ohm amp.
     
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  6. fitz288

    fitz288 Apprentice Fermi's Paradox Analyst Silver Supporting Member

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    That should work to hook up the 2 ~ 8ohm cabs to the 16ohm output on the DSL1HR.
    Use the series jack to the amp, and you could check the cable with a meter to be sure it hooked up right.
    I put an extra double jack in one of my 10" micro stack cabs to do the same thing, but I had all the parts in my mods leftovers bin.

    upload_2021-2-26_18-59-27.png
     
  7. Richard Serrano

    Richard Serrano New Member

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    So i just thought about it and it appear the cabinets have input and out jacks so i can rewire the cabinets to series without the cab merger for a nice clean setup. Correct me if im wrong. First cab Postive input to positve speaker terminal negative speaker terminal to negative output. Then secound cab negative input to postive speaker, negative speaker to positive input. Then back to first cab postive output back to neagitive input. Ill draw a diagram and post in a bit.
     
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  8. Richard Serrano

    Richard Serrano New Member

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  9. fitz288

    fitz288 Apprentice Fermi's Paradox Analyst Silver Supporting Member

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    I think you are correct, although the 1 page "manual" says nothing.
    upload_2021-2-26_22-31-25.png
    I would assume that these jacks do that for you.
    input from amp, and out put to second cab.
    That's how I did my micro stack.
    Again, check cable to amp with a meter to confirm 15-16ohm so you don't toast the little DSL.
     
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  10. Richard Serrano

    Richard Serrano New Member

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    Thanks
     
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  11. Dogs of Doom

    Dogs of Doom Moderator Staff Member

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    no, you need the cab's wired in a loop...
     
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  12. Richard Serrano

    Richard Serrano New Member

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    Correct please review diagram. I wont be doing this tell late next week.
     
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  13. fitz288

    fitz288 Apprentice Fermi's Paradox Analyst Silver Supporting Member

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    I found this in the Q&A:
    upload_2021-2-26_22-52-17.png

    looks like you would need to rewire the jacks for serial, or you could just get that Palmer gizmo if you're not into modding the cab.
     
  14. Dogs of Doom

    Dogs of Doom Moderator Staff Member

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    your diagram doesn't make sense...

    here's a quickie:

    series.png

    the wires are all single par wires.

    The problem you run into is, that:

    1 wire goes from amp to cabinet #1 (positive)
    1 wire goes from cab #1 to cab #2 (negative to positive)
    1 wire goes from cab #2 to amp (negative)

    at the amp. You only have 1 output for 16 ohm, since you typically can not run 2 cab's & get 16 ohm.

    You'd need 2 (parallel) outputs at the amp, or a splitter cable, or box, to parallel the 2 wires coming & going to speakers from the amp.

    The cab's would also need 2 input jacks (independently wired - not parallel)...

    The cab-to-cab wire would have to reverse the polarity, from tip on one end, to sleeve on the other.

    You'd have to make sure, that, the other sides of jacks/plugs are not connected.

    You could make a serial box, like the Palmer one, that does not switch, easier, than trying to cobble your cab's like this...
     
    Last edited: Feb 26, 2021
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  15. Richard Serrano

    Richard Serrano New Member

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    So rewiring the output of the cab acts as the serial box. The cab has a input and output. Rewiring speaker and output on 1st cab and speaker in 2nd cab should work.
     
  16. Richard Serrano

    Richard Serrano New Member

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    Standard i believe they are wired in parallel basically the diagram i drew is series but using the input and output jack so looks weird
     
  17. Richard Serrano

    Richard Serrano New Member

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    The speaker cable from cab 1 to 2 with the rewire complets the circuit back to the input on 1st cab.
    I appreciate the input from you all and of course i will put an ohm meter before trying with the amp.
     
  18. Richard Serrano

    Richard Serrano New Member

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    I think ill use the palmer to be safe thanks all
     
  19. fitz288

    fitz288 Apprentice Fermi's Paradox Analyst Silver Supporting Member

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    Yes, you could rewire the jacks on the cab in the middle, but it won't work as a single cab unless you change it back.
    I added 2 new jacks that do the polarity switch, leaving the original jack to work as 8ohm.

    20210226_231430_HDR-2.jpg 20210226_231403-2.jpg 20201205_145423-2.jpg
     
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  20. Dogs of Doom

    Dogs of Doom Moderator Staff Member

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    a more complete diagram.

    everything in the green loops needs to be eliminated from the circuit.

    small circles = jacks
    big circles = speakers
    + & - are polarity of each item

    Top is amp out. Notice 2 jacks one w/ positive removed & the other w/ negative removed.

    Bottom is cabinets. Notice that each input only goes to one side of the speaker polarity. The other jack, goes to the opposite & connects to the other cab to connect to the proper polarity on cab 2.

    series2.png
     
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