The 2.1s don't run nearly as hot due to a much simpler amp system. I didn't want to void my waranty on my speakers and the on/off switch is pretty inconvenient with these (it's on the sub) but they get a bit warm even just idling so I wanted them off when not being used to ensure they will last as long as possible (after seeing people talk about having the Promedia 5.1s last 6+ years I feel a lot more confident though. Oh well.Īnyway, you can always do what I did. I never understood why people want thumpy bass.