it seems the only one of these that can be found is the Alpine h660.
none of these are new, so why cant the MS-8 be found to buy? its not even on their website! There is almost noting in the JBL website!
I did a search for bit one on google I found only 2 of them.
The MS-8 is not yet released. It is available for pre-order only right now. The bitone is available. There is a couple for sale in the classified section here. You can also get one from an audison dealer.
Panny Tube--Mosconi AS300.2 and 200.4(2)--Gladen Aerospace 165.3--DAD BD12(2)--Mosconi 6to8v8