1974 superlead 100 vs Canadian 1977 JMP 2203

Discussion in 'Let's Talk Vintage' started by shane159, Nov 28, 2014.

  1. shane159

    shane159 Member

    Joined:
    Mar 11, 2012
    Messages:
    76
    Likes Received:
    49
    What are the tonal differences between a 74 Superlead 100 with 6550's and a Canadian 1977 JMP 2203 EL's? I own the Superlead, so I know what tones it has but I am curious of how the other would compare. I have an 800 RI, and it is thinner, more gain than my SPL, so I was wondering if the JMP 2203 would be and different?
     
  2. Nudge68

    Nudge68 Well-Known Member

    Joined:
    Jul 27, 2012
    Messages:
    2,302
    Likes Received:
    1,608
    Location:
    London
    I have 13 Marshall heads and 4 cabs dating from '69-'87. I couldn't articulate differences between my units.

    Mate, you have to play them for yourself.

    Tone is subjective, let alone the signal chain from your body through metal, wood, plastic and physical environment through to your ears and brain.
     
    Hahahahahahaha, shane159 and DaDoc like this.
  3. Joshabr1

    Joshabr1 Well-Known Member

    Joined:
    Sep 2, 2013
    Messages:
    1,297
    Likes Received:
    618
    Location:
    Ky
    The jmp 2203 will be way more similar to the Jcm 800 reissue. Thinner more fizz in the highs. Not as open and throaty sounding as a superlead. That said they are great amps in their own right. Have you ever tried el34s in your superlead?? That's the ticket for most around here. I personally like the 6550 a little better in the master volume circuit. For the superlead/bass el34s all the way.
     
    Jaymz E and shane159 like this.
  4. FutureProf88

    FutureProf88 Well-Known Member

    Joined:
    Oct 2, 2012
    Messages:
    1,923
    Likes Received:
    1,036
    Location:
    St. Louis metro area
    I always thought the same thing until I played a '74 Super with 6550's. It was pretty gainy on the front end and had plenty of crunch when wound up a little bit. It never got the fuzzy top of EL34's, but I was surprised by how much I liked the 6550's. They never reached a point where they fell on their face - they stayed very open sounding and they never compressed to the point that they lost punch and became sludgy. I actually preferred that amp to a '75 that I played which had been converted to EL34's.
     
    blues_n_cues and shane159 like this.
  5. shane159

    shane159 Member

    Joined:
    Mar 11, 2012
    Messages:
    76
    Likes Received:
    49
    Yeah, I had my 74 Superlead converted to EL 34'3 and went back to 6550's the next week. I preferred the 6550's bigger sound, and they still have the EL34 crunch as well. I also have a JCM800 RI(belongs to my dad) and just got an offer on a 77 JMP. I am just not sure if there are big enough differences to justify getting it. I am mainly wondering if the 2203 circuits are that much different between the JMP, and JCM?
     
  6. FutureProf88

    FutureProf88 Well-Known Member

    Joined:
    Oct 2, 2012
    Messages:
    1,923
    Likes Received:
    1,036
    Location:
    St. Louis metro area
    Depends on what you plan to do. If you plan to gig it I would stay with the 2203X. You have an effects loop if that's you're kind of thing, newer parts all around and it's not as "collectible" (see: attractive to theive-y hands). If it's for you to have and love an occasionally gig I would say the '77. You can always order another new 2203X. I have never played one but I have heard that the reissues are a bit brighter and livelier on the top than the originals.
     
    shane159 likes this.
  7. FutureProf88

    FutureProf88 Well-Known Member

    Joined:
    Oct 2, 2012
    Messages:
    1,923
    Likes Received:
    1,036
    Location:
    St. Louis metro area
    Shane, whereabouts are you from? Did you sell a 1960BX recently?
     
  8. shane159

    shane159 Member

    Joined:
    Mar 11, 2012
    Messages:
    76
    Likes Received:
    49
    I live in Chattanooga, TN, and San Diego, Ca. No, I haven't sold a cab, although I am looking for a 1960B.
     
  9. Joshabr1

    Joshabr1 Well-Known Member

    Joined:
    Sep 2, 2013
    Messages:
    1,297
    Likes Received:
    618
    Location:
    Ky
    To each is own. The only 6550s I have had where nos GEs. They just are not as musical to my ears. The el 34 has more of what I want to hear in the lushness of the midrange. Huge Kossoff fan so that may be the reason.
     
    shane159 likes this.
  10. shane159

    shane159 Member

    Joined:
    Mar 11, 2012
    Messages:
    76
    Likes Received:
    49
    I love EL34's but in my Superlead the 6550's had the same overall tone, but a bigger body. I have a video of the EL's, so I will make a vid of the 6550's to see if there is an audible difference. The one thing that made me go back to the 6550's was the lead tones were much rounder and musical. I agree, to each his own, but with the SPL it was a very minimal difference.That being said, my Superlead has been converted to Superbass specs.
     
  11. FutureProf88

    FutureProf88 Well-Known Member

    Joined:
    Oct 2, 2012
    Messages:
    1,923
    Likes Received:
    1,036
    Location:
    St. Louis metro area
    Shane, that's why I asked. I recently bought a 1960BX from a gentleman in St. Louis who had a '74 with 6550's and that is the one that I played that sold me on those tubes. He also had a 2203X! So I thought we might have a small world moment there, but you do have a musical doppleganger to the Northwest.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice