#2 what is its reception ability for internet radio?
Internet Radio uses your network to broadcast internet radio stations. It does not use an antenna like an AM or FM tuner would.
#3 Will this player connect with Google Pay Music?
No, not yet but hopefully it will support Google Play Music down the road. With that said, all of our products with HEOS built in do support Google Voice Assistant. (GVA)
Yes, the unit should support gapless playback of files unless you're in Random mode.
#5 Can this unit support amazon music ultra hd and output at full res 24-bit / 96khz?
The Marantz NA6006 is equipped with an audiophile-standard ESS9016 Saber DAC with dual crystal clocks to ensure accurate handling of all digital signals for superb audio performance. The upgraded digital-to-analog converter (DAC) supports high resolution audio (up to 24-bit / 192kHz and DSD 5.6MHz).