The First gen advances came out in 2006 but in late October/early November 2008 they redesigned the bracket but in 2010 they redesigned the horn and the label looks different too
The Classic has clips in it for 2 Wire Operation, simply take your wires, and put them in one circuit (for example I like to have my wires power the horn) and the clips that are already in the wiring terminal will power the strobe.
Classic for sure, they are childhood memories, look and sound cool, and although being common, not boring like advances and the l series. The advances and the l series are boring and don't sound good.
