Dedicated power


I'm looking to run a dedicated 30a and dedicated 20a line to my system directly from the fuse box. 
I currently have some florescent lights and some other junk on the line so I'm hoping it will be an improvement. Things sounds like they are straining somewhat when you crank things up. The amp will go on the 30a line and the digital stuff on the 20a. 
Anyone done this and saw improvements? 
mofojo
All copper#2 wire. Thanks for the links jea48, the voltage drop could have been from the captive power cord. 
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I don't believe too many manufacturers make a 240 volt sub or amplifier in the us. 
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Thinking back, these are some of the problems that caused power problems:

  • squirrels nearly chewed through the bare aluminum neutral. Apparently, they love it for sharpening their teeth.
  • both a recording studio and a mastering lab had issues from underground transformers that got wet over several years and eventually became unbalanced.
  • pole transformer failure severely unbalanced 120v legs.
  • this was a toughy: one of the load balancing transformers the DWP switched in at times was defective in combination with some others. I called DWP, but of course It’s all good here. Must be your end. I logged power and voltage for about a month and gave them specific times, loads and voltages. When they compared with their switching logs, they were able to identify the faulty unit. Once replaced, no more issues.
  • etc.