I cleaned up an already clean version of the demo made with Simmons using older Sound Blaster software...
It helped, but it lost some if it's depth (if it had any in the first place)...
What works good is to record it to reel to reel tape while boosting some mids and bass, but that's too much trouble. I've done it with other stuff...
I made an all live disc of different bands using what I described above and nobody could believe the original source was MP3...mostly 320kb BTW
I started the process with the London 1978 Van Halen show but only got through two songs. The main problems with it are abrupt changes in volume. I was jotting down the times on paper and compensating for it in real time...
It can be done, but it gets old fast, because as soon as I would make a mistake i'd start over...
I'm looking foward to taking another shot at it using Reaper, hopefully...
Maybe i'll overdub some guitar parts...