Connection: Lighting Cable / Micro USB to USB-B to DAC

I was wondering if I could get a recommendation for adapters to play music off my iPhone 6s and Nexus 7 tablet to my Music Hall dac15.2 which has a USB-B female? Will the phone and tablet even communicate and accept this connection? 

First time poster, I tried doing a search for this topic and was unable to find anything concrete. Sorry if this has been brought up before. 


Call Drew at tell him what exactly you are trying to hook up he prob has the right cable. I've dealt with him before and he was helpful.
Found a solution. USB-OTG connector worked perfect! I'm assuming  Lightning to USB Camera Adapter will work for the iPhone.