Here’s an inexpensive way to hear which gives you the most for your money. Trace the circuit, which provides the source of power to your equipment. Un-plug all other devices on circuit. This will take you very close to having a dedicated line. Then audition a power conditioner. A good dealer will be happy to loan you one.
Dedicated line vs. power conditioner
I've pretty much found the gear for my "keeper" system. Now, I'm turning my attention to the little things that make a system sound its best. Which is the better tweak, running one or more dedicated power lines to my audio gear, or investing in a high quality line conditioner? I've heard arguments both ways. Some say the line conditioner is better because there is "junk" coming in even with a dedicated line. Others say you'll never know true power and dynamics without a 20 or 30 amp line. Any thoughts?