Support for Chario R100 speaker's woofer housing bridge

I have a pair of 20 years old Chario R100 loudspeakers.
I heard weird sound from the left side.
The woofer housing made out of plastic was broken, torn down rubber was holding it.
I glued the broken housing but I though it would break again later on.

I measured the bridge and created a support model that reinforces it. The support is the 3rd iteration.

Each woofer has four bridges. So I printed eight supports and glued them with a silicon on both woofers.

How much did I save from