My friend just bought an audigy 2 zs and a set of logitech z680s. We want to take advantage of the digital connection. The only thing is the digital output on the back of the sound card is one of those mini plugs (like a headphone plug) and the digital inputs on the z680s are set up for optical or coaxal digital cables. So, can you please show me a link to what kind of converter or whatever i need is at. Thanks.