As you can read on the page about my monitorspeakers, there isn't any space for these large speakers in my new (and much smaller) room. So that's why I designed smaller speakers. But that left me with a pair of finished, large and heavy cabinets.
What to do with these? Store them? Nope, too large, and besides: By the time I have enough space for them, I will want to build a new pair. Sell them, or give them away? No, if I can't have them, no one can. Well, only one option left: throw them away.

To be sure, that they're unusuable, I ripped them apart, which wasn't easy!

A speaker and main tool of destruction:

The sidepanel would only come loose after putting full force on the jack, and a firm whack with a large hammer

After that, the rest was easy