DSL40CR used "as new" with bias set at 35 - help

Discussion in 'Marshall Amps' started by davidrf, Feb 10, 2020.

  1. davidrf

    davidrf Member

    Joined:
    Mar 24, 2019
    Messages:
    13
    Likes Received:
    29
    Hi there, tomorrow I'll have the chance to buy at a very good price (for my area) a used DLS40 CR in "as new" conditions. I have some doubts though: the owner told me he bought it as a Ex-demo from a local store, and he used the amp less than 20 times, and everything is perfect and "as new", but he had the bias done at 35.

    I am no expert in bias and stuff like that, so I ask you: what could it mean?

    Could it be just for personal taste? What is the default bias on a DSL40CR?
    Could it be because as a ex-demo the amp NEEDED the bias to be re-set?

    If I go there to try the amp, how can I spot possible flaws?

    Thanks a lot!
     
    tce63, SkyMonkey and Mitchell Pearrow like this.
  2. KraftyBob

    KraftyBob Well-Known Member Gold Supporting Member

    Joined:
    Sep 5, 2017
    Messages:
    1,843
    Likes Received:
    2,362
    Location:
    Chicago Suburbs - USA
    Bias setting is a personal preference. Some like it colder, 30-32, etc., as the amp may be less fizzy. Others like it hotter, 40ish +/-. When I last changed tubes I set mine to about 34 if I remember correctly. I wouldn't worry about this assuming he knows what he's doing or paid to have it done.

    As far as what the owner says about buying from a store could always ask to see there receipt, although he may be reluctant to do so being the price he paid will be on there. Or you could ask him to hide the price.
    • Check the amp physically for tolex or grill cloth rips, scratches, etc. If it's in "new" condition I would expect it to be free from any defects like that.
    • Definitely play the amp.
    • Check all channels and knobs. Listen for any crackling/scratchiness from knobs and speaker.
    • Maybe pull the back panel off and look at the power tubes to make sure they're not red-plating.
    • Do you have a pedal to bring with and run it through the effects loop? You'll want to make sure that's working fine.
    • Check both power settings too - the 20w/40w switch on the back. Make sure you put the amp in standby mode before you change the power level.
    • Is he selling it with the footswitch? Check that too.

    That's all I can think of. I'm sure others will chime in and add their comments too.

    Good luck and let us know what you decided to do.
     
  3. Mitchell Pearrow

    Mitchell Pearrow Well-Known Member VIP Member

    Joined:
    Jul 2, 2018
    Messages:
    13,040
    Likes Received:
    24,337
    Location:
    Moreno Valley CA
    Welcome to the forum, cool amps for sure, I have a couple of the older , Dsl40c’s, what KB said before me is the best advice to hear, and your power reduction switch is on the standby.
    I can’t really add anything else, other than when you try it out, play it at loud volume, and TV volume.
    Cheers Mitch
     
  4. SkyMonkey

    SkyMonkey Well-Known Member

    Joined:
    Oct 28, 2018
    Messages:
    3,105
    Likes Received:
    4,090
    Location:
    Location:Location
    The only fault with mine is the FX loop keeps resetting to OFF at each start up.
    Not a biggie, but maybe check if there are any start up resets.
    If you get a useable Emulated Out, that's a bonus.
    Apart from that, an amazing amp!
    I re-biased mine to about 33, but that was a while ago. Maybe time to check it again.
    It is very easy to do BTW.
     
  5. davidrf

    davidrf Member

    Joined:
    Mar 24, 2019
    Messages:
    13
    Likes Received:
    29
    Thanks for your replies, I will surely watch out for all of that. And yes, the seller told me he will give me the footswitch too.

    I'm kinda emotional because the first amp I've ever owned was a Marshall Valvestate V80 back in 1995 when I was 15 years old, and I sold that a couple of years later. Since then I've never owned another Marshall, so me getting that DSL40CR is kinda like going back and full circle :)
     
    nickfox, scozz, KraftyBob and 2 others like this.
  6. tce63

    tce63 Well-Known Member Gold Supporting Member

    Joined:
    Aug 6, 2018
    Messages:
    1,958
    Likes Received:
    5,357
    Location:
    Sweden
    :welcome: to the forum, DSL are great amps
     
    MarshallDog, scozz, davidrf and 2 others like this.
  7. KraftyBob

    KraftyBob Well-Known Member Gold Supporting Member

    Joined:
    Sep 5, 2017
    Messages:
    1,843
    Likes Received:
    2,362
    Location:
    Chicago Suburbs - USA
    Good point SkyMonkey - I was thinking about the DSL40 that Mitch and I have which requires opening the chassis to bias it. I forgot the newer CR's have the bias points on the back of the amp. Which makes it even less of a concern for the OP as, like you said, it's easy to do!
     
    davidrf likes this.
  8. SkyMonkey

    SkyMonkey Well-Known Member

    Joined:
    Oct 28, 2018
    Messages:
    3,105
    Likes Received:
    4,090
    Location:
    Location:Location
    This guy has biased to 35 on the "advice" from Marshall.

     
    Mitchell Pearrow and KraftyBob like this.
  9. MaskingApathy

    MaskingApathy Well-Known Member

    Joined:
    Jan 17, 2017
    Messages:
    283
    Likes Received:
    351
    Yeah I think 35 is around where you want it.
     
    Mitchell Pearrow and KraftyBob like this.
  10. EC Strat

    EC Strat Member

    Joined:
    Jan 6, 2020
    Messages:
    43
    Likes Received:
    62
    I set mine at 32. Still plenty of gain and better tone IMO
     
    ken361 likes this.
  11. davidrf

    davidrf Member

    Joined:
    Mar 24, 2019
    Messages:
    13
    Likes Received:
    29
    Bought it! It was in perfect conditions, literally as new. To celebrate I even manged to find an old picture of my first amp ever. The first picture is the Marshall Valvestate V80 with the Marshall Microstack on top of it. It was June 1995. My God!

    The second picture, almost 25 years apart, is my DSL 40CR that just came home a couple of hours ago :cheers:

    597511fb-fadc-4425-ad37-e826f48cf8ca.jpg 20200211_222315-2.jpg
     
    delirium, CraigP, MarshallDog and 7 others like this.
  12. ken361

    ken361 Well-Known Member

    Joined:
    Aug 30, 2009
    Messages:
    4,045
    Likes Received:
    4,024
    Location:
    detroit rock city
    I found 32 best over 36 which got brighter and loose
     
    EC Strat and Mitchell Pearrow like this.
  13. Esa Martikainen

    Esa Martikainen Member

    Joined:
    Jan 1, 2020
    Messages:
    39
    Likes Received:
    16
    I have set mine to read 35mA. When I select "half power Triode mode" there is 79mA and 84mA ???
     
  14. tidbit

    tidbit Active Member

    Joined:
    Oct 18, 2018
    Messages:
    86
    Likes Received:
    198
    This thread got me to check mine today
    It was Factory set at 35. I played around a little and left it at 33. The change was subtle but there. A little less bite in a good way.
     
    Mitchell Pearrow likes this.
  15. Lukas

    Lukas Well-Known Member

    Joined:
    Apr 21, 2013
    Messages:
    451
    Likes Received:
    579
    Location:
    Canada
    Don’t pay attention to that who cares... just bias it at full power between 32-35 and call it good.
     
    Mitchell Pearrow likes this.
  16. Sir Don

    Sir Don Well-Known Member

    Joined:
    Aug 9, 2009
    Messages:
    1,490
    Likes Received:
    1,158
    Location:
    Adelaide, South Australia
    Did you get the six button switch with it or the standard two?

    The six makes the amp so much more versatile.
     
    davidrf and Mitchell Pearrow like this.
  17. KraftyBob

    KraftyBob Well-Known Member Gold Supporting Member

    Joined:
    Sep 5, 2017
    Messages:
    1,843
    Likes Received:
    2,362
    Location:
    Chicago Suburbs - USA
    Congrats on your new amp - looks great! Here’s to many years of cranking your new Marshall :cheers:.
     
    davidrf and Mitchell Pearrow like this.
  18. KraftyBob

    KraftyBob Well-Known Member Gold Supporting Member

    Joined:
    Sep 5, 2017
    Messages:
    1,843
    Likes Received:
    2,362
    Location:
    Chicago Suburbs - USA
    I knew it wouldn’t be long before you chimed in on a conversation about bias settings :)

    It’s been a while - hope all is well with you, Ken.
     
    Mitchell Pearrow and ken361 like this.
  19. Lukas

    Lukas Well-Known Member

    Joined:
    Apr 21, 2013
    Messages:
    451
    Likes Received:
    579
    Location:
    Canada
    Funny how everyone says they’re came different from the factory... for instance mine was biased at 30 from new and I bumped it up to 35. Some guys say there’s were at that from new. I mean it sounded good at 30 I could have left it there. I think your golden and would be great anywhere from 30-35.
     
    Mitchell Pearrow likes this.
  20. ken361

    ken361 Well-Known Member

    Joined:
    Aug 30, 2009
    Messages:
    4,045
    Likes Received:
    4,024
    Location:
    detroit rock city
    sold mine when I bought the Jubilee:)
     
    MarshallDog and Mitchell Pearrow like this.

Share This Page