D800 - Using the mic input as a line input

Chewyee wrote:

Hi there !! I am interested to know if anyone knows the process or gear involved in using the microphone input on the D800 (or any DSLR mic input for that matter) as a line input. ie an audio output from a mixer in the case of recording electronic drums etc plugging directly into the mic socket on the D800. As a technician, I understand the differences between the 2 input sources (line level being much higher than mic level) So just just wondering what nifty little adapter/converter I need to do this & where can I find one.