If I plug a Microphone into channel 1 and plug a cable from line out to our main PA board, as I increase or decrease the volume of my microphone with the remote, will it increase or decrease the signal to the MAIN? Next, has there been any experience by other users with plugging a Mackie sub(1500SRS) bottom into the bass line out(I know it becomes 110hz and below for the bass and 110hz and up for the PAS), but has anyone tried this yet to see how compatible it is regarding feedback if the units are BEHIND the performer??One last thing-I use a Kurzweil K2600x run in STEREO for bass keyboard and organ,strings,synths,horns,etc.I mix my own monitor,including microphone, and I LOVE this system! I have 2 PAS sticks and 2 B1 bottoms.I'm contemplating adding 2 more B1's to utilize the full 250w of bass per side....But..again..I REALLY am impressed.Oh..I forgot...The 18gal tote bins by Rubbermaid(Wal-Mart-$4 each) are a MUST for the B1's! The bags mine came with didn't prevent scraping of the bottoms while loading in and out of my van.The tote bins offer complete protection and are a perfect fit!!Thanks.I'll be awaiting on line response--I called with questions before, and was ALWAYS able to speak with someone who could help-UNBELIEVABLE SERVICE.