[BuickGN]

I had the same problem as the original post ever since I installed the Tempest X sub even through multiple calibrations. When I installed the AE IB15s, same issue but not quite as bad. I figured it was something I had to live with.

I did a reset to factory yesterday and what an amazing difference. No more delay on the subs. Bass is back in full force and at the right time. Amazing difference. I have no idea what changes when you erase everything but it surely fixed my issue. I plan to make resetting the MS8 a standard part of calibration even though it will take longer having to enter all information again.