Originally Posted by Allanvh5150
I hate design work. I always think up the basic circuit idea and then try to build in a lot of features. The active crossovers are designed, schematics have gone to my board designer in the States. Hopefully the board design will be done in a week or so. Power amplifiers are all but ready to go. The power supplies are ready to go, one is +-70 volt with 60,000uf of filter for the 250 watt amp, the other is +-35v with 40,000uf of filter for the Mid and Hi amplifiers. There are some smaller supplies as wel: +-18v for the crossover, 12v for each fan. I have 2 120mm fans in each box. These will run at 30% most of the time for the simple reason, to keep them quiet. Ach fan will have a separate thermistor controller to enable the fan speed to increase if needed. I have decided to put a vacuum tube VU display in for each channel: no LED's here! Hopefully I can crank up the CNC mill next week and do one of the front panels, probably from 20mm plate aluminium. Fun fun fun.
Allan.
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