Bose 3-2-1 IIi subwoofer

[968driver]

Hi, I have a simple question:
how do I remove the power transformer of the Bose 2-2-1 series III subwoofer?
Mounting bolts seem free, no mather what I try I cannot remove them.

 

[weltersys]

Probably stuck in place, try a spatula or chisel to pry it loose, post a picture if that doesn't work so we can see the mount.

 

[968driver]

subwoofer Bose PS3-2-1 III

Thank you for your answer.
After unscrewing fout bolts, I can take off the rear panel of the subwoofer.
The big power transformer is mounted in the rear cavity, near the top, between two heavy metal plates.
These are secured by four bolts. If I try to unscrew these bolts (counter clockwise), they only get more tight,
If I try clockwise, they loosen to a certain point, but no further. I am stuck, I see no way to remove these srews and the transformer.
The nuts of these bolts are not visible, because they are behind the mounting panel, with no access at all.
I am beginning to think that this Bose subwoofer cannot be serviced without damaging or breaking of the enclosure.
Is this a Bose feature?

 

[weltersys]

You might be able to access the spinning nuts from the speaker side, but that requires removing other screws that could also have spinning nuts..

Unfortunately, many products have been designed in such a way that non-destructive service is difficult or impossible.

 

[968driver]

I see no way to remove the front panel. Maybe I am missing something?

 

[Freedom666]

its a pity boxes being unservicable

maybe you can power the bass drivers with an external amplifier

 

[mattstat]

https://www.manualslib.com/manual/1505754/Bose-3-2-1gs-Series-Ii.html?page=52#manual

 

[weltersys]

Hopefully, the thread locked T-nuts (or hurricane nuts) have not already stripped out the mounting holes.

Using a pry bar while unscrewing may keep them in place after the thread-lock has softened.