Dave Smith Instruments SYNTHESIZERS

Hello

Since I have the new manual now,there is no stopping in exploring the 
evolver.I'me sitting on the train for 1 hour (every day) and I want to 
use this time for digging into the evolver.Yes there are power supply's 
on the train  :-).Mostly I'me just playing with Reaktor on my laptop.
I want to connect a headphone on my evolver,I have a adaptor cable ,so 
I can put 2 jacks in the stereo outputs that go to one connection for a 
headphone.My brother tells me this will damage the evolver outputs.Does 
anybody knows about this?True or false,i don't know.

Thanx in advance