Klipsch Pro Media 2.1?

My Klipsch ProMedia 2.1 speakers are connected to my iPad Pro via an iKling Multi connector. The one eight inch Klipsch speaker plug is plugged into the Audio output on the iKling adaptor.

unfortunately, the sound connection only works on an intermittent basis. I hear a slight crackling in the Klipsch speaker when connected to my iPad Pro. Has anyone else had this problem and how did you solve it?