1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  
    TalkBass.com has been uniting the low end since 1998.  Join us! :)

What choice have you made...

Discussion in 'Amps and Cabs [BG]' started by Jeff O'Connor, Dec 29, 2005.

  1. Jeff O'Connor

    Jeff O'Connor Supporting Member

    Feb 16, 2004
    Stratford, CT
    :eyebrow: OK folks...I must ask once.

    Which have you found to be more effective: power amp full up /
    then adjust with pre
    OR pre full up, then tweak with pwr amp....

    I do understand that diferent combinations happen, but I'd just like to see what ya'll are doing!

  2. fdeck

    fdeck Supporting Member Commercial User

    Mar 20, 2004
    Madison WI
    HPF Technology LLC
    Like a lot of bass heads, my GK BL600 has one or more Class-A stages in the preamp, but has a linear power amp. To minimize distortion, I run with the power amp full up. Indeed, with a lot of amps, the balance between pre and post gain serves as a de facto distortion control.
  3. I was told awhile ago that, if you run your power amps lower you are actually starving the power amp of its potential power. That knob is not a volume. So, I run my power amp at about full then adjust my preamp level. Good question.
  4. On my Pro 500, I have the power amp at full and adjust volume with the pre-amp. Works well.
  5. ddnidd1

    ddnidd1 Supporting Member

    This is a quote by Bob Lee of QSC Audio from another thread:

  6. zombywoof5050


    Dec 20, 2001
    With my Alembic tube preamp I can turn it up higher for a more 'tubey' sound (even slightly overdriven if desired), or leave the volume on a lower setting for a cleaner sound. I like to get the sound I want by adjusting the volume knob on the Alembic preamp, and then adjust the overall volume with the gain controls on the power amp.