Mounting a sub box center console

i just wanted to ask you guys what you are using to mount your centerconsoles i was thinkng some angle brackets from homedepot but i wanted to be able to make the mounts discrete.

when i put my sub box in i bolted it threw the bottum of the box to the floor befor you put the subs in. That or L brackets work plus it adds security when its at the botum of the box couse ppl cant just take it out.

i just dont want it moving around in my vehicle when im driving. Its gonna be way to heavy to lift and move if someone wants to steal it that ans the fact that its going to need to be mounted with out a seat in the vehicle.