I just recently bought an onkyo sr602 av reciever. I bought it to replace my onkyo ds676. It sounds good except for the bass. It sounds flat and weak when playing music. I'm assuming it has something to do with the eq settings. But I dont know what low frequencies to set for it. On my 676 I didnt have to set any frequencies just the db's and it sounded great. Any advice or where to search for advice on settings for this eq.