@seadogs1 you can only have one source connected at a time unless you add a switcher/mixer/router between the multiple sources and the speakers.
The OPPO BDP-95 supports analog XLR output. You can use one channel each from the BDP-95 to each 8c, and select -10dBV.
Your MacBook only has 1/8" stereo analog output via its headphone output jack (I believe). You will need to split and convert that to left and right XLR connections to the 8c speakers, and again have -10dBV selected.
If you want to send digital audio, then the BDP-95 has optical and coaxial S/PDIF but you will need to convert them to AES/EBU. Likewise I believe your MacBook has mini-TOSLink optical S/PDIF from its headphone output jack, but it will also need to be converted to AES/EBU. AES/EBU will be fed into one 8c speaker, and then another XLR cable will go from that speaker's THRU output jack to the other speaker's IN input jack. And then use the 8c AES3 L and AES3 R settings on the left and right speakers respectively.
Most of the connections and settings are documented in the 8c manual, so I think your biggest issue is most likely how to deal with your two sources and getting your MacBook to connect to the XLR input.
