New building 30 × 60. 10 ft walls 8 pitch inside 2nd floor floor

Analog guy  like horns i.e klipsch. And mac. Now I know most of you that are on these discussions talk about high end stuff that's beyond me. My  question is I was reading on the threads about setting up a dedicated power supply. Am a carpenter that's had too many pneumatic gun discharges in my ears so yea I need bigger sound. If I'm  building new is there a certain way to go? Any (realistic) comments appreciated