Dunno where LDub gets his handle from - initials LW perhaps?

But Dub as a musical genre has its origins in reggae remix culture going back at least to the 70s probably earlier. Reggae dubs are remixes of the original music with lots of reverb and emphasized bass, added nature sounds like rain and thunder in the background and de-emphasis of vocals. The term "dub" may derive from the word "double" as in a b-side remix or even an entire album getting doubled with song-for-song remixes.

Dubstep is a modern dance-club style of dub where they have kind of done away with the original song and just started in composing with the characteristics that were "dub" to begin with. Of course its more than that over simplification, but close enough.