MPC ONE + HELP

Ive just purchased the mpc one plus and trying to play through my JBL EON715 1/4 jack from MPC to JBL XLR
(Pass through) No sound.......Also what is the connection from a JBL extreme into the MPC as that cable is a very small connector.......Any help much appreciated

Thanks

I may be wrong here but looking at the photo of the JBL EON715, I would say just use either a 1/4 inch to 1/4 inch or XLR to channel 1 and don't use the passthrough channel, the passthrough channel is an output not an input. Page 14 of the user manual.

Hope this helps.