If your unit had an optical in like the Model 8005, you would be good to go. There are a number of reasonably priced small portable external USB DACs for the SP1,2,3 that provide optical outs like the inexpensive Turtle Beach Micro II or the more esoteric( albeit more expensive) Meridian Explorer. If you don't insist on going through your CD player, these are excellent stand alone units. There are of course many others which I have not mentioned.Hmmmm. So no output from Surface that will work? that would be a bummer.