LegionSound 4x12 speaker cab???

[Candyman1984]

Hey y'all-
I know nothing about speaker cabinets or amplifiers for that matter, but i am looking to buy a speaker cab made by legion sound. I am going to look at it this evening, any suggestions or things i should know/be weary of? I will be using an amplifier my uncle built, and it works thats about all i know. any help will be appreciated thanks guys.

-James