The official 1 watt thread.

Discussion in 'Marshall Amps' started by Georgiatec, Dec 17, 2013.

  1. langmurf

    langmurf Active Member

    Joined:
    Aug 16, 2012
    Messages:
    232
    Likes Received:
    89
    Location:
    Lawrenceville, GA
    I have the Offset head/cab rig. I also have an Orange PPC112 with a V30.

    The Offset head through the V30 sounds a tad bit louder, which, I guess is not too surprising, considering the V30 is a 12" and the Offset cab has a 10" in it. (Don't know the efficiency ratings for the two speakers... which, of course, plays a huge part in volume output.)

    That said, the Marshall 10" speaker has more sparkle and 3D at lower volumes, imho.

    Not very technical, I know...
     
    jamesm likes this.
  2. Stradlin

    Stradlin New Member

    Joined:
    Aug 26, 2012
    Messages:
    29
    Likes Received:
    7
    Just wanted to say that I love my JMP1, incredible classic tones through a 2061CX and a SG Standard
     
    slide222 likes this.
  3. Jakeboy

    Jakeboy Well-Known Member

    Joined:
    Dec 15, 2010
    Messages:
    575
    Likes Received:
    336
    Location:
    Missouri
    I have ran the JMP1H through a 2x12 ov V30s and it sounded great, but not as great as the 2 GBs, IMO.
    The GBs have THAT sound with the JMP.

    Someone asked about over low wattage amps....I have a Mesa TA15 that has a 5 watt mode with a master and the Hi1 channel is VERY Marshally...more JCM than JMP to my ears. NOw THAT bad boy just rips through the V30s...
     
  4. slide222

    slide222 Well-Known Member

    Joined:
    Apr 5, 2013
    Messages:
    2,360
    Likes Received:
    1,443
    Location:
    cambridgeshire uk
    I used to run jtm1H , jmp1H , jcm1H all tru 1x12's and had it all in a stack , and ran my 3, 1 watt heads like this , and last year I decided I wanted to run them tru 2x12's, and I got it all finished last week , and have it all in a stack - heres how I have them ,

    jtm1h tru a 2x12 of eminence cannabis rex 50watts 16ohm 101.7 db , very loud

    jmp1H tru a 2x12 of mixed greenbacks 1off g12M-75 hz 25 watt 98db and 1 off g12H-55 hz 100db nicely loud

    jcm1H tru a 2x12 of 1981 g12 80 100 db toneally and beautifully loud

    i'm still playing about with it but I love these as I have them and have experimented this week with different combonations and found what I have here works the best , and variation is astonishing
    the cannabis rex are quite a soft sound until you push em and they break up very nicely
    the greenback mix is break up heaven and one side is dominated by bass frequencies and one side is dominated by treble frequencies and as my first speaker mix in a 2x12 i'm very very plzd and love the mixture
    the g12 80's with bass cones need no introduction- very little break up with a deep bass sound , smooth allowing the tones of the jcm1H to come tru very nicely , and doesn't the jcm1H have a massive array of tones

    but the variation in sound of the 1 watt heads is amazing in this setup
    no humbuckers were harmed in this exersize and single coils used excullsively
     
    jamesm and Georgiatec like this.
  5. Georgiatec

    Georgiatec Well-Known Member VIP Member

    Joined:
    Apr 23, 2010
    Messages:
    5,167
    Likes Received:
    3,992
    Location:
    Looking for something I don't remember what.
    With proper micing they record absolutely beautifully too. There really is no need for a cranked 100 watter anymore. My toughest decision is whether to use the JTM, JMP or JCM800
     
    Last edited: Mar 20, 2017
    jamesm and slide222 like this.
  6. slide222

    slide222 Well-Known Member

    Joined:
    Apr 5, 2013
    Messages:
    2,360
    Likes Received:
    1,443
    Location:
    cambridgeshire uk
    I have noticed my jtm1H is louder than the other 2 , and this is something I have noticed before when trying out 1x12 cabs , it is quite noticeable , i'll have jtm volume 4 1/2, and to get the same volume out of the jmp , i'll have that on 8, and to get the same volume out of the jcm i'll have that vollume 10, preamp 6 or 7
     
    Georgiatec likes this.
  7. Georgiatec

    Georgiatec Well-Known Member VIP Member

    Joined:
    Apr 23, 2010
    Messages:
    5,167
    Likes Received:
    3,992
    Location:
    Looking for something I don't remember what.
    Yep...the JTM is loudest then the JMP with the JCM800 the quietest. I think it is because of the preamp gain circuit whereas the other two have no master volume type set-up.
     
    wntbtw and slide222 like this.
  8. Jakeboy

    Jakeboy Well-Known Member

    Joined:
    Dec 15, 2010
    Messages:
    575
    Likes Received:
    336
    Location:
    Missouri
    My JMP1h records so very, very well. With low output P90s and the volume on 3, I get this old school 50s type blues tone......but man is it ever perfect on 7 being pushed with a treble booster. It is THAT sound!
     
    Georgiatec and wntbtw like this.
  9. Mountain Jammer

    Mountain Jammer New Member

    Joined:
    Mar 12, 2017
    Messages:
    25
    Likes Received:
    9
    Hello everyone, I'm the new guy. Just got a JMP-1C. Really love it so far.

    I'd like to run it into a 50-watt JVM head and 4x12. Do I simply put the 1-watter on low output and run an instrument cable from the speaker out into the the JVM? Which loop do I use on that, FX loop return or power amp in?

    Appreciate the help, I'm just starting to educate myself about this amp.
     
  10. Medronio

    Medronio New Member

    Joined:
    Apr 16, 2014
    Messages:
    20
    Likes Received:
    8
    You can switch the JMP to low power mode and use an instrument cable to connect it to the JVM.
    Me personal would plug it in the power amp return of the JVM, so you use the JMP as preamp and the JVM as a poweramp only.
    Don't know if theres any different opinion on that?
     
    Bsthetech and Gianni like this.
  11. Mountain Jammer

    Mountain Jammer New Member

    Joined:
    Mar 12, 2017
    Messages:
    25
    Likes Received:
    9
    Thanks. Every mention of this technique has always involved a 100-watt head. I need to find out if this can safely be done with a 50W.
     
  12. Medronio

    Medronio New Member

    Joined:
    Apr 16, 2014
    Messages:
    20
    Likes Received:
    8
    For sure!
    Theres no need for a specific Wattage of the power amp.
    Bigger amps are just louder and so on.
    You can do that with every amp that features a power amp in or (serial) fx return.
    Most people say the 1 watters rock big time this way.
    Well now its up to you ;-)
     
    Gianni likes this.
  13. Gianni

    Gianni Well-Known Member

    Joined:
    Sep 13, 2014
    Messages:
    2,647
    Likes Received:
    3,661
    Location:
    Greece
    www.marshallforum.com/threads/how-to-slave.48644 ;)
     
  14. Mountain Jammer

    Mountain Jammer New Member

    Joined:
    Mar 12, 2017
    Messages:
    25
    Likes Received:
    9
  15. Georgiatec

    Georgiatec Well-Known Member VIP Member

    Joined:
    Apr 23, 2010
    Messages:
    5,167
    Likes Received:
    3,992
    Location:
    Looking for something I don't remember what.
    Go through the FX return of your JVM not the input. The signal is way too hot to put through the pre-amp of your JVM. Folks with the DSL1 & JVM1 may fair better because the low level signal is balanced and more suitable to go via an amp input. I would still go via the FX return though as you can balance the signal with the return level on the JVM. The JTM and JMP don't work so well going into a bigger amp because they have no master volume, so if you want to crank the volume on the one watters to get them cooking they produce too hot a signal and lots of noise going through the slave amp. No harm in trying it though. I always use my JCM1 because it has a master volume that lets you crank the pre-amp then balance the output with the master and the FX return level on the slave amp.....I use a JMD1 50 watt head and it works very well indeed. :yesway:
     
  16. Medronio

    Medronio New Member

    Joined:
    Apr 16, 2014
    Messages:
    20
    Likes Received:
    8
    I got the JTM and JCM Heads. Think i will keep them.
    Did anybody do some tube rolling on them?
    Theres lots of talk about tube rolling on the JMP head but none for the two mentioned.
    Anybody wants to share their experience on them?
     
  17. Mountain Jammer

    Mountain Jammer New Member

    Joined:
    Mar 12, 2017
    Messages:
    25
    Likes Received:
    9
    [​IMG]

    These two are falling in love.
     
  18. Blueslicks

    Blueslicks Well-Known Member

    Joined:
    Mar 10, 2011
    Messages:
    1,681
    Likes Received:
    1,039
    pig.jpg
     
    Gianni likes this.
  19. Dogs of Doom

    Dogs of Doom Moderator Staff Member

    Joined:
    Aug 2, 2012
    Messages:
    19,307
    Likes Received:
    18,994
    Location:
    Los Angeles
    Blueslicks likes this.
  20. Gianni

    Gianni Well-Known Member

    Joined:
    Sep 13, 2014
    Messages:
    2,647
    Likes Received:
    3,661
    Location:
    Greece
    Blueslicks likes this.

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