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Once upon a time

joeaudioguyjoeaudioguy Posts: 5
edited March 2008 in PA Connectivity
10-15 YEARS AGO I used to watch foh guys slam the outputs on xovers up to + 6 or whatever the xover offered. The clip lights on the bottom end amp were always on. . I would in turn set mine at either 0 db or a bit less. . These settings were based on the variable being - 6 db or so. - up to + 6 db or so with 0 db @ the noon position. Bbs was one of them.
As I set up the \"DRPA\" I notice that it is laid out so you can see the levels based on xover point , So up to 20 db I believe it is.
The point I am makin is this.
Is that 0 db in or 0 db out . as well i cant seem to get the amps to leave the clip lights off. I have seen the notes on pulling the speaker cables out and running everything up to 0 db as it were. Why I dont want to try that is un lucky me. I am using peavey cs 1000 amps bridged. with one for each sub cab. I am worried about thrashing the poop right out of them with no speakers hooked up while I dial in the xover. Any one here wanna kick me and say it is ok ?

Comments

  • DraDra Posts: 3,777
    I'm not an expert, but I play one on this forum. :lol:

    My understanding is that is the old days, tube amp would be messed up with no load. But those Peavey amps will be totally fine. The clip lights on the amps are actually telling you that you have crossed the line usually 3 and sometimes 6 db BELOW the ACTUAL clip point. So no worrys.

    The input meters are in the first stage of the DRPA and the output meters do in fact reflect the output as affected by the x-over gain settings.

    Gadget, do you concur?


    DRA
  • That makes all better . I have downloaded the pink noise disk. I will be on a mission Saturday.
  • GadgetGadget Posts: 4,915
    Yes.. all modern amps are set up to take no load, variable loads, odd loads across each channel, and even shorting bar tests for brief periods. The old analog crossovers were much more susceptible to analog noise and thus the signal to noise ratio setup... Digital crossovers do not suffer this same malady...

    The input gain is fixed, but the output level is tied to the xover gain as you have suspected... The gain structure will help protect those woofers... I don't believe you are OVER powered.. my moto is too much power is NEVER ENOUGH! Too little power is the BIG speaker killer...Too much power almost never hurts unless you bottom the cones out which causes a CLACKing noise... or sustain too long with high power as in death metal...or some other super high average or heavily compressed sound...

    Gadget
  • Fanman20Fanman20 Posts: 223
    hi joeaudioguy

    Nice to see someone starting a post with \"Once apon a time...\"
    At least someone reads the advice we give.Thanks

    Mark
  • Oh The stories we could tell
  • Worked like a charm! The ole look at the snare and swear it was coming off stage. But it was in the pa ...........:Love mixes like that !
    Nothing clipped.Everything gained lol
  • GadgetGadget Posts: 4,915
    I love it when a plan comes together...
    enjoy...
    Gadget
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