I never had a problem getting good sound out of my redline600, but you had to turn knobs to get there. It was pretty "sterile" when you first plugged in. Great eq section though, and the comoressor is at least decent as far as ones that are built amps. Ratio and threshold controls with a lot of subtle "little bit" settings. Noise gate too. Never really had much use for that, but it was good for keeping quiet between songs if you had a buzzy flourescent or neon light thing happening.
Mine got plenty loud, but did feel a little weaker than a 600 watt amp should. I rhink a lot of it comes from being so clean and not having an overly hyped up, baked in eq curve. That and it's only the 600 watts bridged at 4ohms, more like 180 per channel at 8ohms. This 1000 is the exact same amp, just a little stronger power section. 225 watts per side at 8ohms, 350 at 4. They only do clean. If you want any kind of grit or growl or anything other than straight clean, you have to add effects externally.