Old B&O system upgrade

[Blue62]

I have a near 20 year old B&O system, CD player with the classic organ pie speakers with amps built in. Popped into a B&O shop the other day to enquire about streaming music directly to the speakers and was told it can be done, but the box is £600 +

Anyone know of a more cost effective solution, all i really want to do is play my spotify stuff through them.