I understand the empeg doesnt have lights. This is totally separate. It has a mic and just displays whatever sound it picks up from the speakers or your voice through a mic directly plugged into this unit. I posted something similar in another area about creating a visual on the empeg and use the empeg as a spectrum analyzer if I could change a visual. I did notice I could change the visuals, superimpose Hz values. If I used this spectrum analyzer, I dont need it connected to any stereo. I would actually want it separate so it would pick up the sound through the mic, which would account for everything affecting the sound coming from the speakers, for example things in the way, like seats or your leg or vibrations caused by the speakers themselves. Just wondering about changing the lights to UV lights.