How to Connect the iPad to a looping rig

[Rick Walker <looppool@cruzio.com>]

I have a Dtar, which is a high quality, but mono only, preamplifier
that I"m using for my NAMM demos this coming weekend.

I'm loving the iPad so much that I want to use it in my demos but
I'm having problems finding a cable that converts 1/8" stereo (male)
to 1/4"  mono (male).

How do you guys use your iPads in your shows.......always in stereo?

I'm going nuts trying to find a solution.

Rick Walker