So with this new line of XB headphones do you think Sony will stop with their current models? I think the tire cups are like the best thing ever.

I've been looking around but haven't found much consensus. First off do I need an LOD? Also I've seen that some don't work with the 6th gen Ipod nano so I was wondering if the Fiio L3 does since that is what I was thinking of getting. Thank you in advance for the info.