Eminent Technology ET-2 Tonearm Owners

Geoffkait: Your experience and your way of dealing with the results, really gave me a "belly laugh". Thanks for that!

I don't want to in any way disregard Richardkrebs personal results. I believe it would be half-hazard and wrong to do so. I respect his thoughts and his journey. I find all of this fascinating and don't want to, in any way, discourage others from posting on their results.

My feeling regarding different materials used, is that each individual material has a resonant frequency response (in terms of audio reproduction) that is really what the end user hears. How these different materials are applied is the ultimate question.

My current motor enclosure has extensive use of lead shot in two ways. The bottom surface is encased with small gauge lead shot ( around 3/4", tapped down, and it's surrounding area is coated with a spray-on damping material, the sides of the enclosure have been drilled out at various intervals and filled with epoxy/lead shot). You'd think it would be fairly dead but that really isn't the case. It seems that the shot hasn't "dealt" with the vibrations caused by the spinning motor in this instance. It has "re-directed" them. IMO.

I recently tried three Stillpoints Minis (directly under) this enclosure and was not at all impressed. The vibration/resonance was brought back up through the enclosure. I then decided to use the brass cones that are bonded to the bottom ( the original design) for the "drain" needed to deal with the fact there is a motor spinning in this application. This was the better coarse of action.

It's all about the best way for built up energy/resonance to be drained while the materials used/their "end sound" and the application of these materials that matters, as I see it. This is what Richardkrebs is saying as are we all. We have differing ways to get to the best sound. Ultimately, It will be our own listening biases that make the decision for us. Thanks for the responses!

(As an aside, my current speakers Usher BE-718 have their internal side walls lined with lead plating. I'm happy with the sound and have not tried in any way to put my own imprint here on their sound other than speaker stands.)

...Without (a materials' resonant property,) there would not be very much substantive discussion in all things audio related.

Geoffkait: I would like to know how & in what particular way you chose to use the lead shot in your aforementioned subwoofer project? Thanks!

Taking the thoughts above to the extreme.. think of using the very best material directly under a spinning platter/bearing, that one has found in their system testing to be their most favorable. Taking that material solely as the platters' base and machining it in the very best way in order to drain resonance away, my feeling is the end sound would not be very pleasing. This goes to my/others' over-riding point of the delicate balance in mating/using differing materials in order to achieve best sound. Resonance is a necessary factor in good sound. The controlling of resonance is the on-going/hard to grasp issue.

Goeffkait: I had the same stand as you described, unfortunately, I cannot describe my listening results as I sold it a long time ago. I do wish you'd go into more detail regarding your conclusions VIA your obvious systems' reflections of these comments. Thank you!