Landfall Systems makes custom aluminum enclosures to your specifications (within the limits of their materials). Check them out:
Landfall
They are very nice to work with and really bent over backwards for me when I was designing and building my 833C mono amps. Here are a couple a pics of the completed amps, top and bottom so you can see the enclosures in more detail:
Amp
Underside
These enclosures are very strong - each completed mono weighs 180lbs, and the Landfall chassis feels quite solid even with that load.
Landfall
They are very nice to work with and really bent over backwards for me when I was designing and building my 833C mono amps. Here are a couple a pics of the completed amps, top and bottom so you can see the enclosures in more detail:
Amp
Underside
These enclosures are very strong - each completed mono weighs 180lbs, and the Landfall chassis feels quite solid even with that load.