I am informed a cheaper AK device via optical out to the Hugo will do just a good a job. AK240 on its own is better than first gen AK100/120. So depends what your needs are. Am yet to try AK100/120 mk2
Edit: if you just want transport there is the X5 mentioned. Not demo that myself
You don't need AK240 or 120 if you use a Hugo with it. Just buy a cheaper DAP or a mobile phone with 128 GB micro sd card slot. It'll do the same job.