Home dbx User Forum dbx Archive Threads DriverRack PA & DriveRack PA+ PA General Discussion

What is the difference with fixed and live modes in fbq

mkahn18045mkahn18045 Posts: 4
edited September 2008 in PA General Discussion
what are the big differences. I play in a rock band and it seems to me that you would want the system to search and destroy all and any frequencues it can find. am I missing something?

Comments

  • WitchsMarkWitchsMark Posts: 116
    The FBQ sweeps through and finds the bad frequencies and then fixes them. The frequencies found and settled through the Fixed mode will remain constant and not change every time the FBQ sweeps back by for a checkup... The Live mode will release the previously selected Fix and allow for another assignment. I usually keep my FBQ half and half, but others can give better advice probalbly.
  • 6 fixed and 6 live is probably best for most setups.
    I use all live and set the time for 60 minutes
    (longer than a set for most bands). I do this as
    with wireless mics and moving around of the singer it
    catches it all. Use medium music resolution (1/40 of an octive filters)
    If all filters are on and another FB occurs, the AFS will drop a filter
    to catch the FB. If I set it for hi res (1/80 of an octave) then the
    notch filters are vary narrow and will use up all filters more quickly
    and if time is set short to like one minute then I will get slight squeals
    every minute due to the fliters dropping and resetting all the time.

    That is why I use MED which is a little wider freq notch and 30 or 60 min
    hold, as the filters will only drop when there is another needed
  • GadgetGadget Posts: 4,915
    I give up...RMFBP....
  • DraDra Posts: 3,777
    If I have a constanstant squealer in the live setting, I increase the fixed # by one (or whatever). No sense in fighting the same one all night. Taming the cab with the PEQ's helps a ton. Use your GEQ, if need. Stuff a sock in the horn. :wink:

    DRA
  • I'll try high setting and go with 6 live and 6 fixed
    (vocalist runs around alot) and try the settings gadget listed.

    Even if the monitors squeel a little the DRPA seems to pick it up.
    (DRPA is used on the main system only)
    Adding the quad gate to the vocal mics will help too, once I experiment with it. Have never had serious FB issues as it works great.
  • GadgetGadget Posts: 4,915
    Have you tried trying to get a flat response on the monitors and the mains.. the outdoor method using the -0- response, and medium-high precision has offered me the piece of mind of a system that is so feedback friendly that even when a \"gifted\" singer stands right in front of the speakers... screaming at the top of his lungs... there isn't a hint of feedback,. and on the monitors, even with the damn things so loud they will blow your hair back (bi-amped) you can aim the mic into the heart of the horn and get NO feedback! It works...try it!
    Gadget
Sign In or Register to comment.