My recommedation is to not even worry about the difference between the two...stay away from both of them. I bought a new VLZ Pro when I was a greenhorn and after the honeymoon period was over I then became very unhappy with the unit. Yes, it is built like a tank....but...it's sonic qualities are poor. Once I opened the thing up I figured out why, basicially its poorly designed with tons of el cheapo caps and cheapo op amps. They kill the dynamics. After 4 years I sold it off and picked up the cheapest Behringer mixer which sounds much better. I will not vouch for other Behringer mixers though. My logic was that Behringer are cheapskates. They will put the minimum stuff they can. Its a little $35 desktop mixer that works just fine for what I need it to do. The VLZ series has a worthless EQ and theres so much junk inside, it KILLS THE DYNAMICS OF YOUR SOUND. If you were to listen to the two A/B style, you could easily hear what I'm talking about. I've been a happier camper now that I can hear my tracks properly. There are just too many funky distortions going on with the VLZ series to make them what they call "Recording Ready". If they have to spell it out that its "Recording Ready", run for the hills. If Greg Mackie designed this, then he sucks.
If I were going to look at picking up another smaller mixer, I would look at the Folio series. I'm thinkin but don't know for sure that it could be a winner at 200 bucks. They "say" they use quality parts.
My two hey pennies.
Bob the Mod guy.
