Why would increasing my subs airspace in a sealed box cause my fuses to start blowing?
I would fuse each amplifier at the distribution block according to the amount of power I intend to use unless this exceeds that value of the built in fuse. That is, I probably would not use the recommended fuse at the distribution block to a 4-channel amplifier if all channels will be running at 4-ohms and a pair of them powering tweeters. But if it is a subwoofer amplifier that's running at full tilt, I'd put the manufacturers recommended fuse at the distribution block.One more thing =P If I do end up running two 4 gauge to my distrobution block do I fuse each one with the total amperage of the draw or should I divide it in half?
As far as the wire run in question:
Fuses: This might be the problem! Just noticed I had a 100 amp fuse when Rockford recommends 150 amp. Doh!