Know of a "Dirt Cheap" tweak?

Sabai wrote,

I have no experience with your resonators so I cannot comment on their effectiveness nor can I compare them to resonators made by other makers -- or my own DIY version. But may I respectfully note that you earlier mentioned that you "... started designing and selling acoustic resonators before acoustic resonators were even a gleam in Franck Tchang’s eye ...". But in a more recent post I note that you refer to your resonators being around for 4 or 5 years. Franck Tchang's resonators came out in 2004.

I wasn't referring to my tiny little bowls. I was referring to my Brilliant Pebbles which are also resonators and which debuted at the HiFi show in London in 2003.

cheers

Sabai

geoffkait,

I just checked your own placement diagram on your site. I see you are using some of the same placements as Franck Tchang.

If you had read further you would have seen my diagram is meant to be only a guide. And that I recommend an SPL meter for best results. Hel-loo! Which is why I provide several lengths of silk string and a large tack with my tiny little bowls. You know, so one can easily move the resonator around to find the BEST LOCATION if you wish to play trial and error. What I write is on that page is,

"...and several different lengths of white silk thread that provide flexibility in locating the best location on the wall without moving the tack around too much. (In BOLD) (See paragraph below for use of SPL meter and test tone in finding optimum locations.) The resonator is first placed 6 feet above the floor on a given wall using the shortest length thread; then, the two longer lengths of thread can be tried to see if lowering the height of the resonator improves the sound. It is recommended that the resonators be used in pairs for reasons of symmetry. Suggested number of resonators per room is 2-6.

All diagrams look similar because the general locations of high pressure peaks are well known, in the general sense, you know, but not in an exact sense - I.e., near room corners, between box type speakers on the wall behind them, on the wall behind the listener, etc. so, the diagram would actually look different for electrostatic or other panel speakers. You know, since the radiation patterns are entirely different.

Hi Sabai/geoffkait,

Can I possibly use brass cones/end caps instead of copper as my DIY resonators?

Quick interrupt! If I’m not mistaken the tiny little bowls work for headphones, too. Bigger sound, more energy, more dynamics, subjectively louder, much better and more powerful bass. What the ding dong?! I just installed twenty copper tube caps, half were 1/2" diameter, the rest 1". Almost all were placed in upper corners of the main room and other rooms throughout the place, you know, just to see what would happen. Whoa!!

addendum: I use glue dots to stick the tiny bowls directly to the wall or ceiling surface. One foot out from the actual corner. One one or more of the three surfaces per corner. Use only Super Strength/ Ultra Thin Glue Dots brand.

geoffkait,

Since you seem to have experience with horizontal storage can you be a bit more specific other than your reference to mumbling?

jkbtn,

I use copper beading cones inserted in copper caps. I have no idea if brass will work as well. Never used brass. Give it a go and let us know how this works out. According to Franck Tchang, different metals give different results. Hence his use of various metals in his resonators. Although you may get good results with brass, of course you would need to A/B test in order to ascertain the difference between brass and other metals.