Double otg could be micro usb to micro usb since OPO has micro usb out and Fiio Q1 has micro usb in for dac

same problem here..own a OPO and Fiio Q1 but not able to make the combo work   May be this otg cable could solve the issue..ordered..waiting for delivery...

I am not able to use Fiio Q1 DAC with my Oneplus One & UAPP.. UAPP always shows error that DAC is not found whereas this website says that OPO and Fiio Q1 are compatible  http://www.extreamsd.com/index.php/2015-07-22-12-01-14/usb-audio-driver   CAn anyone help me in the right direction

Can you pls explain your setup for Oneplus one & Fiio Q1 I am not able to make the combo work