Depends which qsc speakers.K series or KW...For the money I would go with dxr12 over K12..Both good, but dxr is better at high volumes.Also dxr is cheaper, so no brainer..KW is better , also DSR is realy good.I have dsr12.Much better than dxr or K ...
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MIKIMIKI
TYROS 5,BEHRINGER X32PRODUCER,YAMAHA DSR112,JBL PRX618s XLF,EV ZLX12p,SENNHEISER E945,....ETC