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  • #1

    Amp owners - need help

    I've only ever bought one brand new amp - a Peavey Bandit 112 year ago - but I seem to recall most preamps/amps back then came with a diagram detailing the EQ curve (falloff chart) and operational frequency ranges (i.e. Bass Mid and Treble centered at xx frequency) either on a separate tech spec sheet or in the manual.

    Do recent amps still come with those?
    I want to depart this world the same way I arrived; screaming and covered in someone else's blood

    The most human thing we can do is comfort the afflicted and afflict the comfortable.

    My Blog: http://newcenstein.com
    Tags: None
  • #2
    Some may, or the specs might be available on the company web sites, but from what I have seen, most manuals now don't have much in the way of tech specs beyond the basic wattage, power consumption, etc.

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    • #3
      I have acquired several amps recently (3 heads, to be exact)... and no, none of them come with anything like that, I checked the manuals just now.


      - Leo.

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      • #4
        I checked the Mesa website but all they had was the manuals, and they didn't have it either.

        Dangit. I need falloff charts so I can set up "modeled" EQ patches.
        I want to depart this world the same way I arrived; screaming and covered in someone else's blood

        The most human thing we can do is comfort the afflicted and afflict the comfortable.

        My Blog: http://newcenstein.com

        Comment

        • #5
          perhaps ask the same question on those amp DIY forums?

          Like:

          MetroAmp Forum:
          http://forum.metroamp.com/


          AX84:
          http://ax84.com/



          - Leo.

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          • #6
            I measured the frequency response of a 50W jubilee head years ago using a spectrum analyzer my dad borrowed from work, and there was nothing special to see there...no particular peaks or valleys at any particular frequencies...just a pretty flat curve starting around 100Hz up to around 20KHz. Which is pretty much exactly what an audio amp should do.

            I've never seen those plots come with an amp.

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            • #7
              Hmmm. Then I need to find another way to diagram the EQ frequencies of various amps. I know various amps have their own tone, and it's related to EQ frequency centers and such, as well as speaker/cabinet matchups, gain structure (preamp, rectifier, etc).


              Guess I'll hafta do it the old fashioned way - finding audio clips and trying to do it by ear.

              Bleh.
              I want to depart this world the same way I arrived; screaming and covered in someone else's blood

              The most human thing we can do is comfort the afflicted and afflict the comfortable.

              My Blog: http://newcenstein.com

              Comment

              • #8
                God forbid you use your ears to dial in a tone...what sense does that make? :ROTF:

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                • #9
                  Originally posted by Rupe View Post
                  God forbid you use your ears to dial in a tone...what sense does that make? :ROTF:
                  NOOO!!!! Youll be BURNED at the stake!

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                  • #10
                    I can understand wantin to see that info myself as I'm a tech geek. On the same token your ears are really all that matter right? Is a blind player capable of getting good tone from his gear?

                    EQ varies from amp to amp, I dont even really look where the knobs end up, just whether it pleases the ears.
                    shawnlutz.com

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