Which 1x12 cab is the best for vintage Greenback?

Discussion in 'Amps & Cabs' started by guitarman555, Mar 6, 2021.

  1. guitarman555

    guitarman555 Member

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    What cab would you recommend? I wanna buy a vintage greenback G12 H or G12 M, and put it in to one of 1x12 Marshall cabs. Or another cab?
    MODEL 1912 - 150W, 1-12 in. extension cab designed for use with the JCM900 1-12 in. combos, mfg. 1989-1998.

    MODEL 1931A/1931B - 75W, 1-12 in. G12T75 speaker, angled cabinet, designed for use with the Model 3310, mfg. 1989-1991.

    MODEL 1933 - 65W, 1-12 in.G12 65 speakers, extension cabinet designed for use with the JCM-800 Model 4010 and

    Model 4210 1-12 in. combos, mfg. 1984-89.

    MODEL 2053/2053B - 100W, 1-12 in. speaker, lead/organ application, extension cabinet sized for a 4-12 in. with flared "picture frame" cosmetics, 2053B has caster cups, mfg. 1972-73.

    MODEL 2064/2064B - 100W, 1-12 in. Powercel speaker, lead/organ application, straight front, extension cabinet designed for use with full-sized heads, 2064B has castor cups, mfg. 1973-75.
     
  2. Gibbo SG

    Gibbo SG Active Member

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    A Marshall 1974x or similar, for me. Those Celestion speakers sound good in anything, just about
     
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  3. guitarman555

    guitarman555 Member

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    I already have PA 20 Marhsall amp, serching just for suitable cab for greenback M 25w or H 30w...
     
  4. Go Nigel Go

    Go Nigel Go Active Member

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    Most 1x12 cabs I have seen are open back, and that effectively makes them "infinite volume" and you can use any speaker you like and the physical cabinet dimensions are pretty irrelevant . It is only when you start talking about closed back (sealed) enclosures that the volume and dimensions of the cabinet start to interact with the speaker cone rebound due to internal vs external air pressure considerations. Even then, if you are using the same size speaker and similar total voice coil excursion travel the effect still shouldn't be a major concern.
     
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  5. guitarman555

    guitarman555 Member

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    I think most of the 1x12 cabs are still closed, eg. 1912 and I think 1933 too. The thing is that all those cabs are constructed for much stronger speakers than greenbacks. Eg. to 1912 they put 70 or even 150 w speakers, so I don´t know...But I would prefere maybe 1933 from 80´s anyway, it seems to be smaller and lighter than 1912.
     
  6. Go Nigel Go

    Go Nigel Go Active Member

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    OK, looks like some of those at least are full closed cabs. the 4210 is open back, and some are closed back, but appear to be ported. If it was me, I would build an open back cab for my speaker of choice and call it a day, but if you prefer to buy one I get it. I would go with at least a ported cab to make it highly unlikely you will have any issues at all. If you go full enclosed and have problems using a less powerful speaker, opening a 3 inch port with a hole saw on the back would probably solve it as well. That just seems a bit complicated though to buy something and then extensively modify it rather than buy something closer to what you actually want. My best guess is that you would have no issues with any of those cabs. Once you select your your speaker, most of your tone is going to come from what you feed it anyway as long as your closed cabinet volume dimensions aren't actually choking your speaker movement.
     
  7. guitarman555

    guitarman555 Member

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    So you think that this one could work too for greenback? Marshall 1x12 Open Back Stack Speaker (1931A)?
     
  8. Go Nigel Go

    Go Nigel Go Active Member

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    Should work just fine imo, No problems with cabinet volume for sure that way. Just out of curiosity, what are your main goals and concerns? The only amps I run that aren't open back are bass amps. No issues here.
     
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  9. guitarman555

    guitarman555 Member

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    Hey, many thanks. Well my goal is to have a good vintage blues sound in style of Jimi together with Marshall PA 20. I don´t want to have overhelmed 4x12 cab, it is pain in the ass to move it anywhere, and people and band would suffer because of noice.
     
  10. Go Nigel Go

    Go Nigel Go Active Member

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    Yup, the rig you re working up should be perfect for your purpose. 20-30 watts is the right size for "live drum" levels (drums without amplification). Perfect for band practice and small venues where the drums don't need more than a kick mic and maybe an overhead into the PA to fill the room. If you get a bigger gig, just mic the cab and run it through the PA and you are good to go. I usually use 1x12 amps in the 20-30 watt range unless I am playing outdoors and need a bit more "Oomph".
     
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  11. guitarman555

    guitarman555 Member

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    Yes, exactly, it is my first Marshall, I am Fender amp player, playing in clubs with 10W and it is perfect, I can turn volume up to 7-9 level and the real blues tone appear. Don´t use pedals much, just fuzzes. And I do think Marshall will provide me with Jimi RM fuzz sound more than Fender. But I wanna try Marshall too, so I bought the small one 20w. Now I am hesitating between 1933 closed JCM 800 amp (80´s) with a round port in fron, and 1931 amp(1990-1993) with open back. I would like to buy vintage 30 greenback and change that 75 w oversized speaker inside...
     
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  12. Go Nigel Go

    Go Nigel Go Active Member

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    Jimi of course used both fender and marshall amps (and probably most others as well at different times), so you may even want to get an A-B switch so that you can switch inputs easily between both amps. I don't think I have ever been worried about having too many options! :D

    As for the cabinet, think of it as a piece of furniture and get the one that will work well for you in the space you have. Any ported or open back will work fine for sure, and probably most closed backs as well. Unless the sealed cab is just too small (unlikely) I would expect little if any noticeable difference in the sound of your greenback.:cheers:
     
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  13. guitarman555

    guitarman555 Member

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    Btw. I cannot find what is the output impedance of my PA 20 amp from 1971. I ran it with Jensen Special design 8ohms. I believe that it should work also with 16 ohms greanback without any mods in amp output?
     
    Last edited: Mar 9, 2021
  14. Go Nigel Go

    Go Nigel Go Active Member

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    I don't know what speaker impedance your amp was designed to work with, but finding out for sure (maybe from Marshall?) would be a good idea. Most times it is marked somewhere on the amp near the jack, but not always.
     
  15. Go Nigel Go

    Go Nigel Go Active Member

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  16. guitarman555

    guitarman555 Member

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    I see, I thought that there is some tollerance. I ran it about 30 minutes through my 8Ohm Jensen speaker from my Deluxe reverb amp and it worked smoothly. But I will ask Marshall anyway. I believe it was made perhaps for 16 ohms, we will se..
     

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