Genesis by justice for the bass and delight by jamie berry to test how they fare with cymbals and trumpets (i found that if a speaker has problems with the band pass filters/ channel separation it sounds awful).
Plus they sound awesome for their respective genres.
In a room full of power supplies i was the only one able to find which one was still powering something, because apparently out of the ~20 people that tried before me, i was the only one that could hear the transformer whine.
Also a general annoyance since i need to charge my phone in another room if i want to sleep without simulating tinnitus.
It seems like a flavour of the rubber duck method; by trying to explain it to a third party, you think about it in a different way and find a solution.
They can kill as well. But indiscriminately and slowly.