Hi,

As Ian suggests, you don't need a DAC (rewiews suggest that the Airport Express DAC is quite reasonable although it might not be too great with respect to jitter). The ATV resamples audio to 16bit/48KHz while the AE passes 16/44.1, which would be better for audio streamed off the NAS. It looks as if the Yamaha only has an analogue stereo output, which isn't much use into a G65.

Brian

Main: G65, MD600 Sooloos, MC200 Roon Core, MS600, 210, 218, UHD722, DSP5200SE, DSP5200HCSE, M6 & DSW.2
System 2: AC200 MS200, WiiM Pro+, M6.
Other: DSP5000 (96/24v1), DSP3300.