You might not need to spend a lot to solve this issue. I was having some noise issues as well. And sometimes crackles coming thru the speakers during summer storms that happened often where I live. On a recommendation from another forum I bought a Furman PST-8D for $150 US. Problem solved and the sound of my system improved, which was unexpected. This box is impressively built. I'm sure the more expensive Furman units are better and perhaps there are amazing improvements beyond that available from other solutions. But I'm not spending my money on those things- just yet. Now that my power problem is solved I'm upgrading some components with money I was going to spend on a different power solution.
