wiring check and okOL to left, OR to right and G2 to ground.
But,...
you must be right somehow, because the lack of bass is only present on the headphone jack, not on the pre-out (at least I didn't notice it at all)
the jack could be defective ?
the E12 board ?
Can I check if the signal that reach the jack is good ?
[Edited by Iggurk on 02-25-2008 at 02:38 PM.]