It's late and I haven't read all the posts. If I'm repeating something already said, please forgive me. Bobby's cabinet material has changed twice since the VSM's inception(if I'm correct). The driver's are not the same, nor is the length of the port or internal wiring.
The removal of lead was not a tweak, but a necessity to be in compliance with ROHS regulations. If it's removal resulted in better sound, it should be seen as a good thing.
Aside from the Watt 3/2, WP8 and Sasha, Wilson's speaker's have been the same with each model sounding slightly different from it's predecessor. Like identical siblings, the VSM may look the same on the outside, but are totally different on the inside.
The removal of lead was not a tweak, but a necessity to be in compliance with ROHS regulations. If it's removal resulted in better sound, it should be seen as a good thing.
Aside from the Watt 3/2, WP8 and Sasha, Wilson's speaker's have been the same with each model sounding slightly different from it's predecessor. Like identical siblings, the VSM may look the same on the outside, but are totally different on the inside.