I would just like to add that I’ve had 2 Norco DS 1240 and both give me problems, I’m working with the manufacture but their response time is very slow. Both my units are out of warranty, so I’m left to their mercy. I would also like to say that I would read, triple check when looking at DIY solution offered from AMUG, I went with this solution based on their tests and reviews, however I feel that they did not probably review the Norco DS-1240 they should have caught this stability issue. Suffice it to say I will be looking to purchase a better enclosure, wanted to pass the message along, for others hoping to find a solution to this problem.