They both have very distinctive tones. They are entirely different from one another. The previous prototype TAM you did makes the standard TAM bong but the "new" one makes a noise I've frankly never heard, just because my experience with the 6xxx series is next to nothing.
I just need to pop that proto ROM in the TAM's to see if it works, that would be too cool if it did. For those of you who don't know what were talking about the prototype TAM boards don't have the ROM on the board but rather a chip that plugs into the board. I have 2 of those ROM chips, 1 is known to be bad, the other we're hopeful is working. More to come on that.
I wonder if the mold that this one was created from was also destroyed? I know they destroyed the stock TAM mold but this one is entirely different. Even the FATBACK is from a different mold. It has holes in the FATBACK for heat dissipation.