From the arm tube to the plinth and the energy resonances measured were very close, ie transmission rate was very high.
Eminent Technology ET-2 Tonearm Owners
Where are you? What mods have you done ?
I have been using these ET2's for over 9 years now.
I am still figuring them out and learning from them. They can be modified in so many ways. Bruce Thigpen laid down the GENIUS behind this tonearm over 20 years ago. Some of you have owned them for over 20 years !
Tell us your secrets.
New owners – what questions do you have ?
We may even be able to coax Bruce to post here. :^)
There are so many modifications that can be done.
Dressing of the wire with this arm is critical to get optimum sonics along with proper counterweight setup.
Let me start it off.
Please tell us what you have found to be the best wire for the ET-2 tonearm ? One that is pliable/doesn’t crink or curl. Whats the best way of dressing it so it doesn’t impact the arm. Through the spindle - Over the manifold - Below manifold ? What have you come up with ?
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I have not thought much about the actual mechanics and physics of turntables and arms but some of what I read does not make much sense to me. Perhaps someone can help me understand better. Folks talk about "draining" energy to the earth or some other place of stability as if it somehow removes the effect. This does not make sense to me. If a tone arm resonates at some frequency it seems to me that it must be moving. That movement will eventually be damped by some mass, i.e. the movement will become undetectable. The resonance will if no longer being excited die out as the energy is dissipated as heat energy raising the temperature of the resonating part. The damage from an audible perspective would seem to me to come from the movement. For the cartridge to reproduce what is in the groove it needs to be absolutely fixed relative to the groove. If it moves relative to the groove then that movement becomes part of the electrical signal as there is no way for the cartridge motor to know if the cartridge is moving or the cantilever is moving. What I think Bruce is saying with his measurement technique is that if you can sense movement in the headshell of a tone arm, which is what you are doing by placing another stylus / arm on the headshell as it plays a record, that movement has to be counterproductive to the faith-full reproduction of the information in the groove. |
APbiii - here’s some interesting data on resonances from Reed. I am sure Bruce probably has files and files of tests as well. >Resonance Testing Some more of their research. Magnetic Damping - and Antiskating I find it very interesting that pivot arm manufacturers are openly discussing the "possibility" of mechanical noises caused by regular antiskate in pivot arms. In Reed's owns words. "This model features magnetic antiskating technology which eliminates the possible noises brought up by the traditional mechanical antiskating." Magnetic Antiskating & Damping Since no one has spoke up about the ET2 magnet yet - I will say I have left it on. I guess we need to experiment with how big it can be and not effect things. My magnet is placed on the pedestal where the air bearing spindle exits. My wires now exit the arm tube and go straight down away from the Spindle. I would post a pic but I am not able to yet. Cheers |
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