Doepfer

howdy
I was wondering if anyone has any suggestions how to prevent the tank from clanging 
when using it in a live situation.  I'm performing with a drummer and anytime we play at a 
small venue the tank makes excessive spring noises due to our close proximity.  I 
currently have the tank mount inside of a portable suitcase.  Before I take any actions, I 
wanted to know if you guys or gals have any suggestions in preventing or limiting this 
problem.   thanks!