It would make a lot of sense for someone to start investing in a dedicated power line before even considering expensive power cords. Vince Galbo of MSB Technology has it right:
”The single biggest goal in improving audio is to install heavier gauge wire using the following guide.
- 1 to 40 feet: 10 gauge wire
- 40 to 60 feet: 8 gauge wire
- Over 60 feet: 6 gauge wire
Everything else in this paper is there to be sure you get the maximum benefit from the lower resistance of heavier wire! Skipping any steps is false economy.”
I have 8 gauge copper in my dedicated line and it did make an unmistakable difference. The cost was less than $200 if I recall correctly. The electrician was $75 per hour and I bought my own cable.