Hi Guys

New to this B&O stuff, need some help with setup!

So im trying to connect beolab 5 to onkyo prsc5509 av reciever

Beolab 5 are connected to Onkyo  preout/line via line rca cables that came with the beolab 5(as suggested in the beolab 5 manual, direct line from beolab  to preout line on onkyo

Beolab 5 are unlocked(pin codes entered and confirmed), calibrated and active

Sync cable between beolab 5s is not connected 

Audio Input to onkyo from tv is via optical connection, no digital coax on this tv 

ARC HDMI also connected, Onkyo has ARC HDMI and so does the TV, both are connected via ARC HDMI as suggested)

I cant get any sound from the Beolab 5's...????

Onkyo and Beolab5 are brand new...

Any pointers on what may be going on? 

Thanks in advance!