I'd be interested to hear some MP3 demos of those basses guys - I have never been able to coax huge bass out of the Virus. The closest I have come is by sampling it, then layering it, and finally running it back through itself, but it still just goes to mud all too quickly.
Oh and like I said, everyone I known personally with a Virus has had hardware issues.
Whether it be simple jack mounts breaking to full failures.