Need information on Yamaha R-N800A Network Receiver

[atozguy]

I am going to buy a R-N800A Yamaha Network Receiver next week. According to specs, its power output is 140 Watts per channel @ 8 ohms and 170 Watts @ 6 ohms. I would also like to buy a best pairing headphone, around INR 15000/-. I am considering buying a headphone, Beyerdynamic DT770 PRO / 250 Ohms. However, I am clueless as regards the headphone impedance supported by this Receiver. No information is available online and also on Yamaha's official site. If the receiver could not support headphone with 250 to 600 ohms impedance, then please let me know, if there are options/ways to connect such high impedance HPs with the above receiver. Additional gadgets/methods should not cost me more than INR 10000.00. Thank you all for your suggestions/insights in advance.