Reply to External Mixer Record Out (no adjustable gain)

Hi there,

Quick question - I'm using a Traktor DVS setup with a Pioneer DJM-250 which has a master out and a booth out. I've routed the booth out to one of the spare inputs on my Traktor A6 which is working fine. Problem is my mixer has no adjustable volume out for the booth out and as such the recording volume is very low.

Is there a small not-so-powerful pre-amp or something that I could put between the booth out and the sound card to boost the volume? Or a setting in Traktor that I'm missing?

Thanks
James