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n cook n cook is offline
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Default Mackie SRM 450 powered speaker

How to separate the 2 main body parts.
I have to get to the speaker and have so far only removed one screw.
They are 2 inch long, twin start, that bite too much in the bulk of the
plastic.
I'm aware of this situation before, in other kit, and the screw shank
snapping due to the excess torque required to undo, not just the first turn
but perhaps half the thread length. Previously I've heated the head of the
screws with a soldering iron to partially soften the plastic , then when
extracted, drill out the plastic a little.
But these are recessed 8 inches down.
So is it a matter of the shaft of a long philips screw driver with the
plastic handle removed , replaced with something metalic and a soldering
iron heater slid over the shaft to heat the recessed screw.
Anyone tried extending an impact driver to break the binding ?
Any other ideas ?