I've never been a fan of Klipsch mainly because of their signature "horn" sound but then it has been many years since I've auditioned any of their products so I have no current knowledge and might change my mind if I heard some today.
Originally Klipsch was big into PA speakers and that's what they always reminded me of. I had a friend back in the day who loved his Klipschorns though.
The speakers I found are made by a Canadian company by the name of Paradigm. To find a pair of those in a thrift store is almost unheard of.
The size of the HP Slate is what makes it perfect for comics. It displays at about the same dimensions as and 8.5 x 11 sheet of paper.