Tonearm recommendation

Dear ct0517: Yes I said that and I’m still with: the ET is an Icon in the audio history.

My first tangential arm was the Dennesen ( that unfortunatelly I sold it. ) followed by the Southern and then the ET and after that I listen several tangential arms like the Rockport, Walker and Kuzma.

Nothing is perfect, tangential arms makes verty especial kind of sound from mid bass and up that for some of us could make the difference.
I was with my ET till its ET 2 version and then sold and from all my experiences with this kind of arm design the one that I " keep " it is the ET but I like a little more the overall quality performance of a well designed and a well excuted design on pivot tonearms.

I’m with you in almost all about the ET but things are that my main audio/music priorities are a little different from yours, that’s all.
Seems to me that the fact that the pivoted arms are true grounded to earth ( to arm board and then TT, and then platform and then to floor and and ) instead in the air gives that bass range characteristics I posted that air bearing does not have.

Can I live with the ET tonearm? sure I can as any one else.

Regards and enjoy the music,
R.

It's even too cold to fish ( and that's cold ).

:^)
Crazy Bill - I thought of the Grumpy Old Men movie

https://www.youtube.com/watch?v=0TRUnJ5JlYw

wrm0325 - I'm going to look into the ET arms.

You can start here - at this link.

https://forum.audiogon.com/search/index?utf8=%E2%9C%93&query=ET2+yellow+sticky+


It's an AudioGon forum search on ET2 Yellow Sticky

I think I evolved into some sort of project manager on this thread ?
Now if I can just find a real project management job that lets me work from home........

You can read the manual too available as a download from Eminent Technology here.

http://www.eminent-tech.com/main.html

click on Support, then Manuals.  

But I think the ET 2 thread is more fun. I feel we learn better when it is fun.
Any questions please say hi on the ET 2 thread.  

My moniker Ct0517 - are my initials and month/day I joined on here.
I am in Southern Ontario, south of Lake Simcoe.

**********************

Hi Raul  
I would not be happy with the ET 1 myself. The ET 2.0 and 2.5 allow you to tune the I Beam compliance for different compliance cartridges.
No other tonearm I am aware of allows for this.
If I was using only MM's I would stick with the ET 2.0 hpm - high pressure manifold. It was introduced when MM's were most popular. That is the tonearm I use in Room B. But my main cartridges are MC. The 2.5 is designed with a thicker lower resonance spindle for MC's.  I had Bruce build me a special ET 2.5. 

Now you can use MC's on the 2.0 version and MM's on the 2.5 version;
and in fact a better setup 2.0 version with an MC, will outperform a weaker setup 2.5 version with an MC. Its all about setup. But for most potential, the general guide is MM's with the 2.0, MC's with the 2.5.

The Air Bearing affords isolation, and allows me to run a straight shot of unshielded wiring. The person that makes the loom - Take Five Audio, tells me NO pivot arm customers can use this loom for two reasons.

1) The erratic pivot arm, armtube behavior with the attached external wire. All pivot arms are like buying a new car with a low front right tire. The only way to fix it - lower pressure in the front left tire. Called antiskating.   

2) Hum issues with the pivot tonearm itself being being bolted to the plinth. Multiple grounds are not a good thing Raul.

Remember a long time ago we used to plug all our stuff into the back of the preamp ?  

Happy Listening.

@Crazy Bill - Happy fishing !

Dear chris: """   Multiple grounds are not a good thing Raul.  """

I don't explained well whar I really want mean:

when I said " grounded " I'm refering a mechanical grounded not electrical. Air bearing tonearm are " floating " and pivot ones are mechanical grounded  and maybe this solid " grounded " bering/surface or whatever is what gives that overall " solidity " to that bass range against a vaccum bearing and I said: " seems to me ", only an opinion.

I use MM and MC cartridges and with my ET 2 90% of the time was with MC ones. Your information about is appreciated.

"""  The erratic pivot arm, armtube behavior with the attached external wire .."""

I respect that Take Five people but I kow they have not real experiences with an external tonearm wire or at least not the right ones.

I try it this for the first time several years ago with my SAEC pivoted tonearms ( 506/8000 ) through the silver Van den Hul wires that gone directly from the cartridge output pins connectors to the phono stage inputs.
After that I tryed with other of my pivoted tonearms and with diferent silver wires including the almost non-existen silver Audio Note that are almost " mechanical resistence cero ".
So, that TF people have to try it again before give that kind of advise

Regards and enjoy the music,
R.

Dear fleib: """ A unipivot maintains stability by the distribution of mass and the center of gravity in relation to the pivot. .......... If the center of gravity is too low or high, it will be unstable. """

Weight or no weight during playing stability is not mantained:

a friend of mine that is a scientist and was the director of science area in the principal of México universities and that works for the NASA and today is working somewhere in Asia has three hobbies:
first how the Universe born?, live music and home audio system to listen music.

One day I received a call from he to invite me the Sunday of that week to one of the University science laboratory and that’s the only information he gaves me.
I attend to and he brought his TT with two mounted tonearms ( the one that uses I seen at his home. ) and 3-4 LPs and our meeting main target was to observe through an electronic microscope the cartridge ridding on the LPs at microscopic level ( I only seen that through internet latter on. ), I was really exited to see it for the first time in my life live.
Everything started and through a screen I seen those LP groove modulations in macroscopic way even at normal speed and in low and very low motion.
Both very well regarded tonearms and cartridges ( but diferent in between. ). We were seen it different kind of track modulations including the 1812 overture and was amazing to see what really happen there when the cartridge is " fighting " against those modulations to ridding it.

Well, suddenly I noted/observed that in one of cartridge/tonearm combinations exist a very especial kind of minuscle motions when seen in low motion status through the micro screen and I told to my friend and as a researcher he wanted to " investigate " what could be happening in that combination and over some tests/views that he runned we took in count that those minuscle motions were coming from the tonearm pivot. Then he did it the same tests with the other cartridge combination and had not those minuscle motions. This combination was with a gimball tonearm and the other was an unipivot design.

I don’t took this in count was only an experience and I bought unipivots tonearms additional to the pivoted ones but " today " that " old " experience was and is a learning one.

What produce that to low or high center of gravity in any pivoted tonearm design is that the cartridge could starts to mistracking.


""" The difference between bearing friction and high inertia is in the type of resistance to movement. Effective mass and inertia are the same. """

everyone knows that and as many times happens my meaning was not to ask that


""" Neither the DP8 or 507 II are unipivots. They both use high mass (inertia) in the horizontal plane to optimize tracking and bass response """

I can’t speak for the DP8 but for the 505/507 and I can tell you that the bass response is not up to the quality level in other more " simple " tonearm designs. So, for me is a faulty design, not a bad one because nothing is perfect but maybe you can tell us the 505/507 first hand advantages through your experiences.

Btw, all your posts comes to tell you disagree with my experiences/opinions but with no better solutions to.

The three ( 3 ) questions I did it to you are in stand by by you with no single answer.

Now, please tell us your overall solution to wrm ( op ) and why that solution is better than mine.
Why your solution or solutions meets better the cartridge needs? WHY?

I hope that sometime you can answer about.

If you decide don’t post your answers is useless and futile you go on and on " over " me because you share no real contribution to help.

Good luck.

Regards and enjoy the music,
R.