Not sure if I understand the question, Ken. And I'm not familiar with your H/K, but if the H/K has 6 pre-ins, the ICBM just goes in the signal chain from your SACD/DVD-A player to the ICBM to the receiver. Someone please correct me if I'm wrong, or thwack me if I'm answering the wrong question.

M22ti mains, EP175 sub, VP150 center, QS4 surrounds