Know of a "Dirt Cheap" tweak?


I am looking for tweaks to improve the overall sound quality of my audio system. I recently purchased some TPC contact cleaner and it made a believer out of me. I noticed a signicant improvement, as if a veil was lifted my system sounded more clear and transparent. Bass got tighter too. Do you know of any cheap tweaks that have made a SIGNIFICANT improvement to the sound quality of your Hifi system...let us know... :-) Comments welcomed!
kasboot
Now, if you opt to do ALL of the above.....

Cups, tile, bricks, sandbags, BB's, metal plates, floor braces, et all...

Your gear will resemble a construction site that needs 'tidying up', and edging towards my 'steampunk' speakers' in general appearance.

Please post pictures....curious minds need a good laugh. ;)
geoffkait,

Simply being direct and to the point. You stated, " ... you’re only guessing if you don’t use a SPL meter." Do you mean that Frank Tchang was only guessing? But then you stated, "It [Franck's diagram] will get you around 50% of my SPL meter method." If so, nice to hear Franck made some good guesses and that your method is twice as good as Franck's guess work.

asvjerry,

My room is indeed untidy -- but the sound is good.
"...and don't smoke dope, burn your hair..."

Don't have none to spare...;)

Nutmeg....*sheesh*   Banana peels, bath salts, salvia...pretty soon...

"Hey, if you eat the inner lining of *so & so's* speaker cables, you'll think you're sitting front 'n center, 6th row orchestra....but wear Depends..."

"Oh....'scuse me..." *sound of running feet, fading into the distance...*

Don't mind me....just kibitzing...keep those tweaks comin'.  I just gotta go get bricked and cupped and all those other things...most interesting thing to watch other than binge-watching @Midnight....;)