PA800 has main lr outputs,plus two more outs that you can asign what do you want to put through those once. But if I can remember those are dry outputs.So no efx.I am not sure.I sold my pa800 long time ago.
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TYROS 5,BEHRINGER X32PRODUCER,YAMAHA DSR112,JBL PRX618s XLF,EV ZLX12p,SENNHEISER E945,....ETC