I just got my new DD-1 and I have to admit, I'm a total noob with it. I'll give you my setup so you have all the info for my question. I have a Kenwood DNX890HD head unit that goes to a JBL MS-8 signal processor which goes to a JL Audio HD900/5 amp. Now, I "think" I understand how to set the HU and amp, with emphasis on the word, think. But how do I set the gain with the JBL MS-8? I know you have to gain set every component in line from the HU to the amp. I saw the video on setting gains on a line driver, but that is different from a MS-8. Any help would be appreciated. Thanks.