Converting Headphone audio level to Guitar audio level?

[mr.adambeck]

Hi there.  I'm using a Kaoss pad's headphone output into some of my effects, and it seems to cause trouble ith the buffer on one of my pedals, making popping noises when my a/b boxes switches on and off.  Is there a simple way to convert the audio of the Kaoss pad to guitar level audio so that this doesn't happen?  It seems like it would be something simple like putting a resistor in the path.  Thanks for any help.