Best Tweaks.....


I have been tweaking my system over the years trying to improve bass and room reflection problems just like many others. Trying to keep the cost down here are some tweaks that I have found to be effective. Bass traps from GIK,
M. Green's corner tunes, and Polycrystal speaker points.
Please list your keepers...
gold
The following are the most effective lower cost tweaks I've tried.

Herbie's Audio Lab grungebuster materials
Machina Dynamica Clever Little Clock
Marigo Audio VTS dots and bands
Xtreme A/V QuickSilver contact paste
Realtraps Mondo Trap, Mini-traps, Mini Traps HF!
Measuring tape and painters tape for positioning speakers
2 8foot ground rods pounded into the ground
Since you started with non-electrical components tweaks keepers, may not be cost effective in some......;
1. Auralex's acoustic panels & Realtrap's Minitrap are on top of my list. They have "transformed" my smallish listening room into a concert hall.
2. Roomlens Helmholtz resonator units for damping out unwanted room resonances.
3. Symposium acoustic products. I 'm using their platforms under all my equipment except for the speakers & they are brillant in bringing focus & clarity to the musical experience. I 'm using their Rollerblock Series 2 Double Stack with the top Grade 3 Superball under my CDP as well, another winner.
4. Herbie's Audio Lab products; CD Mats, IC Dampers & Hal-O damping instruments for vacuum tubes.
4. DIY Cable lifters made out of wooden disposable chopsticks.
Cheers..........