Hello everyone,

This isn't reeeeally a DJ question but I'm at the end of my tether and I don't know where else to turn, I'm hoping that somebody on this forum can please help.

In a nutshell, my active speakers are not playing music correctly and I can't figure out why.

My wife and I are opening a Dance School and we simply need to be able to play music from her laptop and use a microphone to talk over the music from time to time.

This is the setup we have:

Macbook Pro --- Aux to phono cable --> Alto ZMX52 Mixer.

THEN

Mixer --- 1/4" Jack to XLR --> Alto TX210 Powered Loudspeaker

ALSO

Mixer --- 1/4" Jack to XLR --> Microphone


When the Mixer is switched OFF, the music plays through the speakers perfectly and sounds great.

As soon as the Mixer is turned ON, the music drops to about 10% volume and sounds incredibly muffled, but the microphone works perfectly.


I'm a total noob and I have no idea what's going on. I hope this is enough information for somebody to spot the problem, but I can give you some more info or share pictures of the set up if that helps.

I really really appreciate any help that anyone can give me.

Thanks in advance!!

Sam