This is a 4x12 Mesa Standard Recto (R) oversized box with good UK V30 speakers (namely the 70 Watt-Mesa variant) is charged.
So far, so good, but as a special "treat" we have installed 2 Celestion (TM) Black Shadow C90s together with 2 Chinese V30s (Anniversary) in the same cab. Incidentally, the C90 Black Shadows are no longer built. ;-)
The folder MB-V30UK contains the cab pack with the british 70-Watt V30’s,
The folder MB-BSV30CH contains the Anniversary-V30’s (Speaker B & C) and Black Shadow C-90 Speaker (Speaker A & D).
This awesome cab belongs to Stevie Gruber, frontman from the fantastic Austrian Band “Exit by Form“.
https://disk.yandex.ru/d/Ogp2G8fwKu2_-w