shoaibexpert
Head-Fier
The P50 is the exact LPSU I have. This is reassuring. I am pretty sure the improved PS worked really well with your unit in terms of SQ.I don't see why not for that working for you. The Zen Stream takes anywhere from 9-15v from it's specs (just be sure to check the Amps). I have run mine on 15 with no issue from the back of the topping P50.
Yes the Zen can be updated over WiFi..
Cheers