Funny question, 170lb speaker and foam base, how to remove?.

I got large speakers shipped recently but I am yet to find a way to safely remove bottom foam base which the speaker seems to firmly sit on. 

The foam holds the speaker base, and the speakers feet are in the foam. Is there no way to safely remove the foam without wrecking it?.

Lifting the speaker is just not possible, nor tilting it, the foam is pretty thick and the speaker cannot be made to slide out of the foam since feet are wedged into holes in the foam base.

I wonder how people deal with large speakers shipped to their homes seems like quite a task unboxing and placing etc.