I dont have any sound clips but I know that some do exist on this forum.
Like the writer said above I agree with him and I would assume the ROV
can easily achieve pretty much any distortion you may need.
Seriously it can get brutal. It doesnt have the tube rectifiers like its big brothers have. Solid state rectification is what it offers and I believe most people say that offers a tighter sound than the tube rectification. I also purchased the 2x12 recto cab and that addition has really made that deep chugga, chugga sound easily achievable but it deffinatly doesnt need the cab for great sounds.
The cleans are great and you can get great blues sounds all the way through rock to metal. I hardly ever use the modern channel because it just gets too brutal for me. Since owning the amp my needs for extreme gain have fallen to the point where I find myself using the raw and vintage channel most of the time with the gain really never going past 2 oclock on the vintage channel. I would say you can easily get metallica sounds from the vintage channel at about 2 oclock or so. So that means you can still go to 5 oclock on vintage and thats not even touching the modern channel which is where its most brutal lives.
I would also highly suggest using some sort of overdrive pedal with it on top of your amps gain,,,it smooths it out, adds even more gain,sustain and seems to tighten it all up. The overdrive really helps to get a great lead sound with it. good luck to you