Sound System

[madness22]

It was tied on the low sum mono I put on the normal crossover and now it sounds normal in 0. Can low sum mode phase the sound?

 

[conanski]

Mono sum output of the crossover should work fine, how were you connecting that to both channels of the power amp? Did you use a splitter cable?

 

[madness22]

I tied the stereo without a splitter and only when I go low sum I have to press the invert buttons. In normal it is 0

 

[conanski]

I tied the stereo without a splitter

Exactly how did you do that?

 

[madness22]

ev q44 on electrovoice lab gruppen on subwoofers, in ev I put the plugs on the outputs and I went to crossover and from crossover I go to lab gruppen.

 

[conanski]

You're not understanding, I want to know what cables you used to connect from the crossover to the amplifiers.

 

[conanski]

On the rear panel of the LAB there are 3 pushbutton switches right in the middle.

The left switch applies a 180deg phase shift to output B... make sure this is not on.
You probably do want to set it for parallel operations though, so the middle switch Link A-B should be on.

 

[madness22]

is left on normal, everything is left at 0 without low sum, everything is in phase ie tops plus subwoofers, this happens when I apply low sum , then I have to press the reverse button otherwise they are out of phase
cables XLR normal. the thing is that the ev boxes leave them fullrange and then I think that the frequencies overlap with low sum activated it s possible.