I have never heard QS2s but AFAIK the difference is just the woofer size. If the mains are going to be on the short wall and the surrounds on the long wall close to the listening position I imagine the 2s would be fine.

If you are going to have a fair distance from surrounds to listening position then I imagine the 2s would be like most other small satellite speakers -- mighty fine at low volumes but kinda weak at high volumes.


M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8