Volume control for dj booth

DJ Software & Apps Traktor
1

Volume control for dj booth

I have one output going to the club system and the other output going to my self powered monitors. But I cant control the volume to the monitors with the s4, any suggestions on how to do this would be great. thks

2

This http://www.tcelectronic.com/levelpilot.asp

Or this http://cpc.farnell.com/carpower/rff-1/fader-control/dp/CP04887?in_merch=Products%20From%20This%20Range&MER=e-bb45-00001003

Both suggested by Karlos

3

cool thks man