Has there been any inexpensive item that enhanced your system's sound?

Good mention on keeping switches clean. Even before crackles rear there ugly sound and become obvious some maintenance is a good idea. I bet they hinder sq even before the crackling starts, to a certain degree. Clean and lube is a good idea too, to shorten intervals.

Has anyone realized a sonic improvement with those line pillars, hmm? I apologize the correct term for them is not on file, but they keep your lines from touching ground by suspending them a couple inches off the floor. Few search attempts lead me back here http://www.amazon.com/Holdup-Contractor-Suspenders-Patented-No-slip%C2%AE/dp/B0060KRJG2

I can see different types of flooring holding a certain amount of moisture and being a good conductor of electricity. Even dry flooring holding charges of static electricity. And depending on seasonal changes. Just a thought.

It imagine it wouldn’t be difficult to fashion some up to avoid paying large chunks of money for them.

I might have to do some experimenting. A little guidance never hurts http://www.school-for-champions.com/science/static_materials.htm#.VzX9mdQrKLp

The question up top has me curious. Because I’ve witnessed first hand what different types of interference can do, subtle or seemingly non existent before hand.

Foster yes they are great. Now if I can only find a few more deeply discounted. They have countless applications. Unless you have a good surface planer in your garage the BOOS boards are a good way to go.

How best do you clean an AC outlet?

agriculturist84 posts05-13-2016 5:48pm"How best do you clean an AC outlet?"

Deoxit and a pipe cleaner might work inside the receptacles. I highly recommend unhooking it first, or pulling corresponding fuse. Be sure nothing gets left behind that can cause an internal arc. Otherwise the 4th of July may come a little early. I would just replace it for some cheap insurance. Unless its one of those $100,000 units. 

I discovered another inexpensive trick. Dynamat-ing the internal sides of source covers. Avoid blocking vents. I can see some potential for improvement there.  

Pedersen arm board mod for my Gyrodec.

A lot of great feedback here. For me, the best "inexpensive" tweak that I made was buying Solid Tech Feet of Silence. They were recommended to me by a high end audio dealer who actually didn't carry them. He said they will have virtually the same performance characteristics no matter what surface I place them on. He was right- and the vibration reduction markedly improved the soundstage in my system. The better news was I was able to keep the rack I was using which I find aesthetically pleasing (high WAF) and fit my application well. So, I feel like I have the best of both worlds. 

Absolutely consider smartly placed room treatments. Even "free" ones can make a significant difference. Draping a thin tapestry over my flat screen behind my system cleaned up the musical presentation dramatically! $29! As someone wrote earlier, pay attention to first-reflection points. 

Power conditioner (the right power conditioner) and power cords also made a significant impact on my system. However, I would classify them as inexpensive tweaks. 

And don't forget why started down this path in the first place... for the love of music. Cheers!