Conference napalm::commusic_v1

    
    DDT is *designed* to limit the signal in the preamp once it gets
    high enough to cause power amp distortion.  In *theory* this means
    that you can run the preamp as hot as you like and the power amp
    and speaker should be OK.
    
    What surprises many folks who own Peavey stuff is how *often* the
    compressor kicks in.  Most drum machines have pretty good dynamic
    range so it's no surprise the compressor kicks in on the bass drum.

    
    	DDT compression is not compression in the conventional sense,
    	but circuitry to prevent the power amp section from sending 
    	clipped waveforms to the speakers. DDT is the reason your
    	speakers are still OK, and yes, you can just keep going. But
    	it won't get any louder. You've reached max output before
    	meltdown. Most Peavey stuff has a switch to disable the DDT
    	if you want, but I wouldn't recommend it.
    
    	Neal
    

    I use a KB400 and it has the same DDT compression. I have found that
    it only comes on when I crank a bass patch or kick drum through it. It
    seems to react to overall signal energy rather than dynamics. For
    instance, I can play a low, slow attack bass note (low frequencies require 
    more energy (power) than higher frequencies for the same volume) with
    lots of 20-100 hz EQ and it doesn't take much to get DDT into the act.
        
    
    Frank

    Greetings,
    
    I also have a KB300 that is about 3 years old. I use it every weekend
    playing between 1 and 3 keyboards thru it. I have seen the DDT light
    do everything from an occasional flicker to 80% constant on. I have
    never noticed a difference in the output (level or quality) between
    the occasional flicker and pretty much constant on. If you read
    the Peavey lit the light lights (light Lights??) when clipping is
    about to occur, how they determine that and where it's measured
    is a mistery to me. IMP either it works real well ( I've never noticed
    any distortion in the sound even though I tend to push it pretty
    hard, multiple keys midi'ed etc.) or it's got a real low trigger
    point because it seems to flicker at what I consider pretty low
    levels.
    
    At any rate.... I think you'll be safe continuing to doing what
    your doing, the whole point of the DDT is to "protect" the speaker
    not limit your use of it. 
    
    As a final note: as I said, I push my unit pretty hard and in 3
    years or so of regular use ( and being loaded and unloaded from
    the truck) I've had no problems at all. Now if they could just get
    the same functionality and sound in a 25lb. package..........
    
    Good luck...
    
    Gary Ryan
    

    Well, it all seems pretty good to me.  I feel good knowing what you
    have told me.  Thanks.
    
    re .3
    
    How many watts is the KB400??  Mine is 130 into 4 ohms (then newer ones
    are 150 into 4 ohms), so I suspect that it is considerably more.
    
    JD

    The manual to my Peavey XR-1200 board says it is entirely normal for
    the light to be on most of the time.
    
    Edd

    Re: KB400,
    
        The KB400 is 350 Watts out into ? ohms (4 or 8, I'll hafta check).
    It is a basic 4 channel mixer/amp in one package. It doesn't contain
    any speakers, as it is just a 'head' or 'brain' as some refer to these
    things. As for other features:
    
    9 band graphic eq
    4 band parametric eq for each channel
    2 effects sends/returns
    built in spring reverb
    preamp out with adjustable crossover (lo-hi)
    
        I've had mine now for about 4-5 years. It has given me no problems
    whatsoever. 
    
    Frank

     I bought my KB300 within the last 6 months. It doesn't have a
    compression light. I am told that Peavey is always making changes...
    
    Anyway I am very happy with my amp. I tend to drive it quite hard
    (input = 10, main volume = 8) mainly because my EPS seems to have
    a low output.
    
    	When I was shopping for this amp I tried them with and without
    Black Widow speakers. I heard enough difference to pay the extra
    to get one with the BW speakers. If you want to squeeze a bit more
    out of your amp, and minimize blown speaker worries even more, consider
    upgrading.
    
    		regards,
    		Mark

    I have a KB100 amp which I have been very pleased with.
    
    It's 75 watts RMS and I run my electronic drums through it.
    
    My question is:  Is there any way to hook up another speaker cabinet to
                     it?
    
    
    thanks,
    Hunter