With the built in Mixer it has lots of nice features. The sub can be a bit on the boomy side but with the EQ settings, mastering, Roll Off, Amp simulators, separate EQs you can dial it in nicely. I love that I can save setups for 8 different shows or settings. Nice variable FX for vocals and guitar. I was shocked at how loud I could get the volume with my mic dead in front no more than two feet away. That's not how I'd set up but at home I was crammed in a tight spot just trying it out and discovered it by trial and error. Really pleased with the RCF so far. The best sounding unit when I compared it with Samson, JBL, Mackie, Bose and EV. Only EV's high end had this quality of sound and power but the EV only had two XLR inputs and missing all the digital mixer gear this unit has plus it's about $300 more. Happy Happy.