07-20-07: Zachattack420 Just a thought, but if the DAC (or any other piece of equipment) is tube based, electrical voltage should not be your only concern....heat should be considered if this is the case. If the tubes are used and exposed, this should definately be out of the reach of short ones.....nothing like the ringing tone of a child who's just left some scalded flesh on an exposed power tube...not something you want to experience first hand....not to mention that was a quite expensinve WE 300B tube that needs replacing now.
Heat should be considered no matter what type of equipment it is, a class A solid state amp can make more than enough heat to burn a child.
High and enclosed cabinetry is the best way to go in your situation, just make sure it's ventilated properly tope and bottom....locking doors are great as well. Zachattack420 (Answers | This Thread)