This stuff was contained in another thread, bit was OT, so I made a new one. A lot of folks have not been happy with the boomy low end on the POD HDs. The mid focus eq is a bandpass filter and can be used to trim the fat from boomy amp/cab models. Place it immediately following the amp block. Here's how I set it up: set the gain at 10-ish (the is roughly unity) both Q's, I believe, are set at 50 by default. Leave them alone. LP freq goes to 100, so it's "out of the circuit." HP freq is adjusted by ear (depends on room, guitar, amp, cab, etc). Roll it around till the bottom is tight enough for you. I usually end up at 30. I'd love to know the cutoff freq (not the %), but it's no big deal since you should use you ear anyway. It's not global, but it works for me. Hope that helps.