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question for tube amp/pre amp users?

Discussion in 'Amps and Cabs [BG]' started by cb56, Nov 7, 2001.


  1. cb56

    cb56

    Jul 2, 2000
    Central Illinois
    especially Ampeg users. svp-pro or svt3 pro. Is there always some distortion present in a tube amp/preamp tone as compared to solid state? A tiny bit maybe even when the pre amp isn't being pushed hard? Not asking whether this is good or bad just if it is always there.
     
  2. PollyBass

    PollyBass ******

    Jun 25, 2001
    Shreveport, LA
    Well, i have a tube pre-amp, but i dont have any distortion. even when i crank the tube, there is none, even though i wish there were. it only makes my peak light scream like no tomorrow.
     
  3. When tube amps are operated within their linear operating range, they don't distort any more than solid state amps. They only take on "that tube sound" when they are pushed beyond their linear range.. Ask anyone who owns an Aguilar whether it's hi fidelity or not:D Like I said in another post I'll challenge anyone to tell the difference between a solid state and a tube amp in a double blind test, when both are operating in their linear ranges.
     
  4. cb56

    cb56

    Jul 2, 2000
    Central Illinois
    so what you're saying is that if I take two similar amps(same brand name and wattage) and do an A B test at the same settings EQ etc... they should sound the same. If the one with the tube pre amp sounds a little distorted it either isn't being set up properly or it isn't working properly and needs repair. The sound I am trying to describe is that of an overdriven tube mixed in at a lower volume than the main bass tone. I hope that made sense.
     
  5. More or less. I mean you have to compare apples to apples. Every amp has a "sound" of course. An Ampeg sounds like an ampeg, for example. The solid state and tube Ampegs both have the "ampeg sound". No, a tube preamp won't sound overdriven if it isn't being overdriven. Unless it's been particularly designed to sound like that. I think the Ampegs have a drive control that simulates this. You might be able to hear a difference in sound between two bass amps, because most of them are designed to have a "sound". But there's no way to tell which one is tube and which one isn't unless they are being overdriven. I own a tube amp, and I like the sound when it's slightly overdriven. Not everyone digs this of course. To make a long story short, tube preamps/amps do not inherently distort more than SS amps. Hope this helps. I tried an SVP-pro and thought it sounded pretty clean with the drive control down.
    cheers
     
  6. cb56

    cb56

    Jul 2, 2000
    Central Illinois
    hey thanks alot. the one I played through must have had a problem then because I shouldn't have been over driving the pre amp but there still was a slight tube overdrive sound to it. the tube drive was turned all the way off and the pre amp was set about 1/2 way up with the 15 db pad on. You're right I should try to compare it to another amp exactly like it. thanks again