I have the Bluesound, it's a great way to get into digital. Easy to use, great support, low price. I then upgraded it just by running it though my outboard DAC like you plan to do, although the DAC built in is quite good for the price. Of course there are better/more expensive and more complicated options, but this was how I got started with understanding and using streaming (reading about it helps, but hands on is the best way to grasp it) and it worked well.
You can output analog or digital from the Bluesound, and as fuzztone states, the output to your DAC is digital and the DAC makes it analogue to your amp. Since you have an outboard DAC, I would recommend that.
You can output analog or digital from the Bluesound, and as fuzztone states, the output to your DAC is digital and the DAC makes it analogue to your amp. Since you have an outboard DAC, I would recommend that.