iPad for streaming to Yamaha amp

No Problem. And, You're Welcome. I hope it works out for you. If you don't mind, please report back once you try the USB3 Camera Cable. The question comes up often, and I'll like a definitive answer.....

@jwfitdo - This subject comes up pretty often. There is quite a bit of information on the topic over at the Computeraudiophile.com site. Maybe go there and do a search on "Apple Camera Cable". 

Here's a cut/paste from one of my old posts on the subject:

Go read the info at Computeraudiophile.com. According to some of the folks over there, the iPod/iPhone will output bit perfect digital over the USB 3 Camera cable. The USB 3 camera kit cost $40 at Apple. Give it a try, you can't go too far wrong.

My NuForce Icon iDO definitely will output bit perfect digital output. It also has a built-in DAC and can output 2-channel analog line level or a bit perfect digital signal. Unfortunately, the old NuForce is out of business and the iDo was discontinued a long time ago.