No. The only way to bypass the DAC of Apple devices is with the $500+ CLAS, HPP1, Vmoda Verza, Sony blah blah etc etc
Why? These companies paid apple a LOT of money to get the lisence to allow for them to get the 'code' to bypass the iPod's own DAC. You need a special device for this.
Guess those $3 OTG cables won't cut it then. haha Thanks Panda we meet again. This time you won. :)