Vestax Typhoon w/ Traktor LE - No sound from headphones?

[theory28]

i think the typhoon has a built in sound card. this post might help

@Karlos_Santos

Dont have Typhoon but it has an internal Soundcard … yeah?
Its playing out of that not your Laptop. If you can connect your Typhoon outputs to a stereo you will hear it.

I dont know if you can but to hear it out of the laptop you need to select the Onboard Soundcard (thats the Dell) in preferences.
Problem is that Traktor only lets you select one soundcard so you will lose the headphone out on the vestax.

You really should follow the wiring diagram for the Vestax as it shows the connection from the soundcard to speakers (just looked)