Question on JCM800

Discussion in 'Amps and Cabs' started by bbutler123, Dec 17, 2009.

  1. bbutler123

    bbutler123 Member

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    I'm new to Marshall (except listening to them and salivating over the hard rock years).

    I have a JCM800 combo model 4210. It is 2 channel. It's definitely different distortion to use the gain and master volume on Channel Two than to just turn Clean Channel One up until it distorts.

    My question: Talking about only the clean channel, does it operate on basically the same principle as did an old 1970 Marshall one-channel, non-master volume amp?

    It may sound different of course because of electronics, etc., but is Channel One on my 4210 just a regular old Marshall channel, or is it designed to be CLEAN moreso than an old 1970, ---which was just designed to be an amp...you know what I mean? I'm probably not explaining it too well.
     
  2. gulliver

    gulliver Member

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    IMHO, the switcher's clean channel is voiced way off to nail the classic Marshall tones. You can get some classic Marshall clipping vibe when cranked, so there is potential, regardless of the design. Maybe an EQ in the effects loop would help??? ... I've never tried it. That channel does take pedals very well, so another option, of course, is a Marshall in a box type pedal into it.
     
  3. bbutler123

    bbutler123 Member

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    In response to the two posters above:

    Hey, this is a JCM800. Are you telling me that not all JCM800s are identical amps? And if not, why and how are they all called JCM800s???? What does JCM800 mean, then?
    Crap! :)
     
  4. bbutler123

    bbutler123 Member

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    Well, it sounds good. But I don't have much to compare it to. It's a JCM800. Wouldn't it sound like any other 50 watt JCM800? :huh I don't know much about this, forgive me.
     
  5. gulliver

    gulliver Member

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    The most popular JCM800s are the single channel ones. I only know heads, but you can google for combos ... 2204/2203s are single channel, 2205/2210 are two channel switchers. The above two numbers are 50 watts/100 watts respectively.

    The switchers cover clean channel and high gain ... the single channel versions are pretty much the sound of rock, covering everything in between. As stated, both very different amps technically.

    Both are great amps, but getting '70s/'80s medium gain out of the switcher is challenging, but with the right pedals you can pull off some decent medium gain tones. Or, you could just do what I did and buy one of each.
     
  6. rob2001

    rob2001 Member

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    Not tryin to be rude at all....but a search will yield more info on these amps than you could read in a month!! Search actual models...I believe that 4210 is the same as a 2205 head, so search 2205 and 2210 (100 watters) those are the channel switchers...Then search 2204 and 2203 for info on the single channels.

    Otherwise, no, not anything like an old vintage non master marshall.
     
  7. bbutler123

    bbutler123 Member

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    thanks, you guys. I appreciate the efforts. I'm just wondering what I have. I'm loving it. :)
     
  8. rob2001

    rob2001 Member

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    Thats what matters most. FWIW, I had a spilt channel 2205 and it had a super sweet plugged straight in lead tone.
     
  9. drewl

    drewl Member

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    JCM800 is a "Line" of amps, 4210 is the model.
    I had both the 4210 50w combo and the 2210 100w head.
    The 4210 combo is actually slightly different that it's 2205 counterpart, no presence control, individual clipping diodes as opposed to a bridge rectifier for clipping diodes and some other small differences I've forgotten.
    Not bad amps. With some tweaking and good tubes it was a handy "grab and go" amp but I got rid of both finally becuase they would never sound as good as my old '73 50w head.

    Actually traded the 100w head for my '67 Pro Reverb.
     
  10. rob2001

    rob2001 Member

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    Just adding info...giving op specific models to search for differences....ok?
     
  11. Griz

    Griz Member

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    Dude, don't worry. That's a good amp.

    I have an '82 JCM800 2203. All the 800's are pretty good really. Some players prefer certain ones.

    Yes, the amps with diode clipping do sound a bit different from the earliest 800's w/o switchable boost. But hey, they all sound good. And they're built like tanks. Turn it up enough to push the output stage and all your tonal concerns will evaporate.

    Enjoy. :aok
     
  12. fewlio

    fewlio Senior Member

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    I just got a 4212 channel switcher 800. Interestingly enough...the best clean sound is on the gain channel using low gain. I think the gain channel covers all the ground you can cover in the amp...the clean channel is kinda useless (unless as some mention, perhaps it is good for pedals)
     

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