For my 802D2 i bought 2 months ago, i didn't notice the little plastic circular, black plug with screw and circular white paper saying "remove before use" at very back of midrange Marlan head.
Do you think I damaged anything over last two months by playing loud with the plugs in?
I guess air pressure could build up inside the Marlan head and possibly damage the driver.
I have listened loud (-10) quite a few times. They still sound ok. I am not sure what difference these plastic plugs would make to the sound.
It bugs me that the 800/802 PDF user guide does not mention anything about removing the little black plugs.
But I should have gone over the speakers thoroughly before using them.
My dealer delivered and installed my 802D2, so I didn't know about that either. I should check when I get home.
I doubt if it would damage the driver.