JCM 800 tubes

Discussion in 'Amps and Cabs' started by mazman, Jan 15, 2008.


  1. mazman

    mazman Supporting Member

    Messages:
    180
    Joined:
    Feb 19, 2007
    Location:
    Bama
    Just bought a 50 watt JCM 800 2204 MKII. What is the tube layout. Never owned a marshall before. Also, what is the best tubes to use?
     
  2. rob2001

    rob2001 Member

    Messages:
    16,946
    Joined:
    Jun 16, 2006
    Location:
    Wisconsin
    Not to sound rude but try a search for 2204, 4104, 4010 and 2203. You'll get a MILLION pages on 800's.
     
  3. yougain

    yougain Member

    Messages:
    2
    Joined:
    Jan 14, 2008
    This amp put the "harsh" in Harshall. Its bright and brassy unless you put something to "brown" it down. I have some Mullard fx2 EL34 biased in mine and run Mullard 12AX7 in V3 and V2. V1 is home of the gain in this amp and depending on my luck in Ebay, I run a NOS Telefunken, or Mullard. Sometimes I hit it right and grab an RCA blackplate NOS or used and its heaven after the amps been on and played 45 minutes and everything is up to temp. It's like sonic butter!!

    All amps have thier own character and you may find other tubes better in yours. My son's JMP sounded aweful with Mullards and we switched back to the Chinese tubes. However in the V1 position we took out the Sovtek and dropped in a NOS telefunken 12AX7 and the amp came alive!!

    In an amp with less tubes, the quality and type make a bigger difference. Have fun with your new amp!!!
     
  4. bosstone

    bosstone Member

    Messages:
    3,401
    Joined:
    Feb 5, 2006
    Location:
    Oakland CA
    I have never heard this amp called harsh before??? They're not tame and shy but mine wasn't harsh.
     
  5. Squigglefunk

    Squigglefunk Senior Member

    Messages:
    3,293
    Joined:
    May 6, 2005
    I wouldn't say harsh, more like brash, rude, rip your head off good.
     
  6. bosstone

    bosstone Member

    Messages:
    3,401
    Joined:
    Feb 5, 2006
    Location:
    Oakland CA
    Yah, but in a good way.
     
  7. TheGuildedAge

    TheGuildedAge Supporting Member

    Messages:
    9,969
    Joined:
    Sep 11, 2005
    My favorite are NOS Siemens El34s and RFTS 12AX7s.
     
  8. JamesHealey

    JamesHealey Member

    Messages:
    750
    Joined:
    Jan 8, 2007
    Location:
    Leeds, UK
    I like using all JJ/Tesla's in my 800.. suits it fine.

    Not bothered for buying 30yr old tubes.. seems like a waste.
     

Share This Page