Quoted from Goonie:I have a later run sample machine and mind does the exact same thing. I just try to teter-totter it over the speaker. Doesn't seem to be doing any damage.
This machine is used in an arcade environment and with multiple arcade attendants and it's really hard to remember to lift the playfield high enough to clear the speaker (myself included). The RM mech has been partiality ripped off the underside of the playfield multiple times. I've suggested to Ryan (the originator of this particular subtopic, who is currently unavailable) about moving the speaker either forward or backwards. But now I'm thinking just hanging a brightly colored sign on a string attached to the underside of the playfield that pops out as the playfield is lifted to remind people about it.