I already wrote a review on this cab in my review for the Marshall MG100HDFX and MG412A half stack. If you cant find it, this is what I wrote:
Recommend this product?
The Marshall MG412A cabinet is the best match for the MG100HDFX. It comes with 4 x 12" Celestion speakers. Each speaker is 30 watts. That makes 120 watts just in the cabinet. Plus the 100 from the head. That is A LOT of power. The cabinet has 8 ohms. On each side of the cabinet are handles for carrying it to...wherever you need it. The dimensions of the cabinet in inches are: 26.375 x 26.375 x 14 (in mm: 669.9 x 669.9 x 355.5). Unfortunately, the cabinet doesnt have any wheels so wherever you bring it, you will have to carry 65lbs (29.4kg) of sound.
Also, the cabinet works with every Marshall Head except for the Marshall Mode Four. It probably works with amps from other companies just be careful about how many watts the heads have because if it is too much, the cab wont work. That is the problem with the Mode Four.
If you dont like the idea of me copying and pasting this review, just tell me and ill get rid of it. Im only doing it because I have nothing else to say about the cabinet.