Newbie question sound mag 275

Hi all,

I have a mag 275 but I cannot sort it out how to connect a SPDIF ? (If this is possible of course) Now the sound is horrible and everytime i change the channel the sound make some noise during a few seconds. The mag is now connected to HDMI for image and for sound I use the cables that are delivered with the box. Is there a extra piece that I have to buy to convert the sound ?

Thanks for the repley's.

Try something like that as HDMI carry digital audio you can use such unit (s) and connect the sound to your amp with digital coaxial or SPDIF cable.

https://www.monoprice.com/product?p_id=5557