Re: JBLPRX button settings, definitive answer
Per the manual, when a 612 or 615 is used with a Sub, the "Main" button should be engaged.
JBL Panels are confusing, but with each series the button is different if the box has a monitor wedge:
On the back of the 612 and 615, the options are:
In = Main
Out = Monitor
But on the page that discusses this button, the verbiage uses "Boost" and "Flat". This is how the 625 & 635 are labeled.
There's a graph that shows what these settings look like. Boost is certainly a smiley face graph.
On the 700 series, they use different verbiage as well.
PRX710, 725 and 735
In = Normal
Out = Boost
PRX712 & 715
In = Main
Out = Monitor
When I use my 615's over subs, I use the "Main" setting, which I thought boosts the low's & high's. I'm going to check this out tonight.
There's no graph in any of the manuals that shows what the "Monitor" vs "Mains" does.
On the older PRX500 series, it's reversed:
In = Boost
Out = Flat
