denon pma-600ne amplifier

Hi I like bands like Camel , Van der Graaf Generator , Yes , Pink Floyd , Black Sabbath , Led Zeppelin ,Radiohead ,almost only rock music and first 5 Metallica albums and 3 Iron Maiden albums , and some bands like Alice in Chains ,Soundgarden ,and other great bands I have read the review of...

I'm very impressed with the high quality of sound produced by my new Denon PMA-600NE amplifier (bought last week from Peter Tyson), but before I can relax and enjoy it I would be most grateful for help with the following four questions, please. 1. The amp came with two "short-circuiting pin...