coins-6.jpgI include this as promised and discussed elsewhere, but I note that it is the only (IMO) technique listed here that does not exploit the Belt phenomenon1. I’d say Newton’s responsible for this one. Even though it may seem a small amount of weight to most, you are tuning resonances. You do this by placing coins on a diagonal parallel on top of your loudspeakers.

I have not read anything about how Sam Tellig or others carried out their experiments. But from what I recall of my experiments, best results were had with 2 locations per speaker, on a diagonal axis, not too close to the corners, and not too far away. Perhaps almost midway between the corner and the centre (see diagram), with the coin(s) a little closer to the corner than centre. As mentioned elsewhere, millimetres can change the sound, speakercoins.jpgso it all depends on what sound you’re looking for. I said coin(s) because I ended up with 2 nickels stacked on top, as I recall. Trying nickels, dimes, quarters and dollars, the greater the size of the coin, the more exaggerated the effect. Exaggerated is not good because it’s one of the many things that takes away as much as it gives. AFAIR, best compromise was the double nickel, with a single nickel as a viable option as well. For the sake of aesthetics, you might try alternate angles for each speaker.


You can change all kinds of aspects of the sound with this little trick, to a surprising degree. Bass, mid, treble, soundstaging, depth, etc. n.b. While I don’t discourage experimenation, I must mention that ultimately, this technique did not pass my personal standards. Whatever position or configuration of coins, they always colored the tonal integrity of the music, which strips away some of the natural timbre that the music has2. It might sound more exciting and even involving, but for me, that isn’t always enough.

By the way, once having located the right location, I Blu-Taked my coins togther and to the speaker box, to prevent them from moving or “singing” with the music. I also “painted” them on the side and top with a black magic marker, to make them disappear a little more.

1Footnotes: I say “in my opinion” because I can see how it might be argued under Beltist doctrine that the coins, not being wholly natural objects, have that same “unnamed energy” found on other objects in the home environment. And although I haven’t heard of anyone researching the Belt effect of coins, there’s always the possibility that if they contain adverse energy, simply placing them on something like speakers may create a relationship that changes our perception of sound. Easy enough to determine however, because if they did have a Belt effect, placing them on a wooden coffee table should have similar consequences on the sound. No, I haven’t tried that!

2For similar reasons, I eschew the use of spikes, and anything that looks, sounds or smells like them.