I've been using a set of Logitech Z-560 speakers in 2.1 mode. I never could find room for the other 2 satellites. I don't know what happened with the computer speaker industry but they hit a high with the Klipsch Promedias, the THX series of Logitechs, the Bose companion series, and the Harmon Kardon sticks; but other than that....it's gone flat. Only the somewhat recent AudioEngine's A5+'s seem to garner the high audio fidelity of these other "Old" speakers.
I wish Logitech, Bose or AudioEngine would make a 2.1 solution for 2017.... I want earth-shattering base and crystal clear audio without having to put massive studio monitors on my desk.
My two cents....