Volume knob.

Discussion in 'Amps and Cabs [BG]' started by Marty Forrer, Aug 29, 2001.

  1. Further to lowfrez' thread on gain levels, some older style heads (such as Duncan) only had a volume knob, not a gain and a volume. Does anyone know how the input gain is regulated in this situation, my guess is the level is set at a medium level, and a hot bass would need it's volume knob to be turned down a bit to prevent overdriving.
  2. Matthias


    May 30, 2000
    Vienna, Austria
    As far as I know, the volume knob controls the preamp in this case, power amp is always at max. (e.g. Hartke 4000)
  3. brianrost

    brianrost Gold Supporting Member

    Apr 26, 2000
    Boston, Taxachusetts
    On a amp with only one knob, the volume knob IS the gain knob.

    A master volume simply reduces the level passing to the power amp. Put it on 10 and it's out of the circuit, and the amp's gain control acts as the lone volume control.
  4. So what happens when the amp is an old tube number?
    For example, (and from reading into what people have said here - I could have it completely arse-about-face) does that mean my old Ampeg V4 runs it's power amp section @ full, with the sole volume control simply the pre-amp gain? Wouldn't you induce saturation if you max the power amp section?