I didn't do a video for this one. Because it was so obvious.
RV5 - Bright, in your face, aggressive. Sonic Youth-y.
RV6 - Smooth, dark, mellow, and subtle. Even at extreme settings. Very much not Sonic Youth-y. More like... I dunno... whatever dad rock you wanna reference.
I was uninpressed with the RV6. But that's because I don't like dad rock too much. Only when I'm drunk really.