Emu XL-7 & MP-7 User's Group

Recommendation based on my own experience: the Rubbermaid (and other)
Tuff-Tote type plastic molded cases + some good foam. Get the
"hardware grade" type that you find in places like Home Depot - they
have a reinforced double layer lid - super tough sculpted-molded body.
I have used this type of case for sensitive electronics many times
including flights all over Europe and the US - never a problem - the
cases cost about $20, and if for some reason your gear does not fit as
expected - you can return it locally. The 2 that I have here hold the
XL-7 perfectly - with about 3" on either side which I stuff with
modular  blocks of 3" high quality rigid case-foam. I also put blocks
of the foam above and below the XL7, and there is room on the bottom
for wires, etc.