after a few days with my 2nd Onkyo (the first 595 arrived DOA), i'm about to have to send it back to J&R AGAIN!! today i tried to listen to a new cd thru the headphone jack and, as it turns out, the jack is patrially in mono or something. when i plug my Sennheiser HD-580s in, i hear great sound in the right ear and almost nothing in the left. so i tried another 1/4" converter. same result. plugged the Senns into my cd player and they (and the jack) worked fine. other headphones have the same result in the Onkyo. conclusion: i have the ABSOLUTE worst luck in the entire world. J&R needs to overnight me another one free of shipping charges to keep me happy (and send the bill to Onkyo!). we'll see what happens tomorrow when their customer service dept opens again.