Budget under $500 Portable PA Battle QSC CP8 VS Yamaha DBR10

I didn't mention, neither speaker has reverb.
For $440 check out the Turbosound iP300 which has Bluetooth, Reverb, and App control with EQ that the other two don't have. https://www.sweetwater.com/store/deta...
My unboxing video on the iP300 Initial Review/Unboxing TurboSound iP...
Correction: The Yamaha does have fan cooling but it is silent.