I am still testing out the set-up with my system.
I have a toshiba laptop with vista but I installed xp... and about to try osx...

anywho...

while testing it out...
I have both the main outputs going to a studio mixer going to my main speakers.
Then I have my booth outputs going to a powered mackie speaker next to the dj set up for monitoring... duh..

what happens is that periodically.. the booth will just drop in volume .. a lot!! for no reason.. I will just have a track playing then... boom... can't hardly hear it. Then it will come back to volume after a bit...

anyone come across this too..?

Never had that happen. Weird indeed.

maybe loose cables

It's brand new... weird. I wouldn't even know where to look for that.

It sounds like I am the one lowering the volume.. and then raising it.
going to test it with VDJ hooked up instead of serato to see if it is the mixer or the serato/hardware combo

Maybe not the problem but could it be when you are moving the crossfader in the middle. There is a 3db dip in sound if you move the fader slider to the left. Give it a try with that slider to the left and to the right. Still there?

It happened while just playing a track and not even touching the board or sliders.
Keep in mind this is the only from the booth output not main output.

Yeah, thats what I figured but thought I'd throw it out there.

are you clipping the booth output? or just pushing that mackie speaker too hard? could be the speaker going into protect mode as well.

not clipping.... didn't even have the mackie up that loud... next time it happens I will look on the back of the speaker to make sure though... gotta be a protection mode light.

dj phat al is it happening at same location or every set u go to? remember some place have their eletrical sockets hooked up wrong as far as grounds go. try using different sources of power sockets. sometimes one on wall is connected to the other one. that is just messed up wiring. it happens, caught drops then changed the eletrical source no problems

this at home... haven't moved it since I got it

my electric is fine

no your eletric is fine paht but sometimes grounds get mix. all i am saying is switch it around your power. its worth a try.

meter your output voltage on the booth out before and when its happening .. see if there is a voltage change ... keep it on a low setting like 5 volts ac.

This is a weird problem, the output signal path goes

D/A converter - op amp - connectors

The D/A converter is shared by all of the outputs so that can't be the problem so if it is a mixer fault it must either be on the connectors or in the op amp, possibly a dodgy pot.

i thought the 57 only had 2 or 3 pots (headphone, mic, aux). the rest are rotary encoders (or so i thought), which would not actually be in the signal path, but controlling a digital circuit with+/- type pulses.

then again, i could be totally wrong. i really have no idea.

There are only two rotary encoders on the mixer, P1 and P2, all the rest are standard pots. The circuits monitor the resistance of the pots and translate this to settings in the DSP.
I don't think that the pots for the output levels, AUX, BOOTH and MAIN are monitored by the DSP instead they directly affect the gain on the output amplifiers.