Your manual shows you how to do it. Go from the "Pre Out" to the input of the amp.
4 responses Add your response
I looked at the back of the 3050,
Pre Out Front goes to your Mac. Then hook up front speakers to Mac.
On 3050, rear speakers hook up to Surround Back.
Center speaker hooks up to Center.
You will need to use the menus to adjust the gain and type of sound for each set of speakers. Look in the manual for setup.
But you'll also need to setup the Mac since it is a muli- channel amp.