Control Vinyl

I have following question:
I often play at a friends bar, where he has pair of turntables. I read in the Cross documentation that every sound interface can use control vinyl with Cross. I have a Vestax VCI 400 - can i connect it to the turntables and use it. Or do i need preamps - beacause the VCI doesen't have any...?
I often play at a friends bar, where he has pair of turntables. I read in the Cross documentation that every sound interface can use control vinyl with Cross. I have a Vestax VCI 400 - can i connect it to the turntables and use it. Or do i need preamps - beacause the VCI doesen't have any...?