I have been through a variety of Branded Tonearms over the years and swapped out arms as and when one was discovered that was being perceived to be able to perform without contributing to the sonic and being more transparent.

In a nutshell and as a very layman's description when the Tonearm was appearing to have got out of the way of having a influence on the presentation, a decision would be made as to whether this was the most desirable trait and the one to aspire to.

This ended up with a SME IV being in use for many years and selected over the V, as I was not able to detect a significant difference between the two on the day I was able to be demonstrated both in use, in the same set up and room.

At a later date the Audiomods Series V Micrometer was added to the options for a Tonearm to use on the home system.

The above two Tonearms are aligned in similarities in how they present a musical performance.

It is a very tough call, but I have kept the Audiomods close at hand and is the most frequent occasionally used Tonearm from a Brand.

I have an understanding of the impression a Tonearm has made on the above contributors and how a certain model has stood out and the words to describe the impression being made are not to easy to attain.

My understanding is resulting from a Tonearm I use today as my go to Tonearm.      It has undergone a complete rethink and design of all the mechanical interfaces, and has been machined to enable the use of parts that are modern and much more fit for the purpose of the selected roles.

I have heard this Tonearm originally as an early concept design, in another system being compared to a range of TT's and Tonearms. There was enough detected to trigger my interest.

I also heard the Tonearm go through a evolving design, to the point it has become a item that is offered to be produced for an individual.

At this stage I have heard it compared to the Audiomods arm in another system and the outcome was my acquiring the redesigned Tonearm.

In the home system, this Tonearm has as good as shelved the Audiomods and the SME IV is permanently on the Sub's Bench.

There is not a comparison in the transparency perceived between the arms, the Branded arms are coloured and able to produce quite noticeable distortion, which is detected as a rather flat uninspiring presentation, the performance is not free to develop, it is constrained.

The alternative to this is a presentation where there there is a shaping to a performance, there is a real sense of a unconstrained presentation, there is also a undeniable resolution created, where the replay is present with a form, there is a new to myself dimension added to shaping an instrument, a vocal or note, the perception being created is very different to a typical separation of a vocalist or instrumentation.

I don't know how much it will cost for myself to achieve a presentation that comes close to this from a Branded Tonearm, but I don't feel the need to look for a variant of this any longer, there is great satisfaction in the place I am at.

This is all available without the option to use the alternative internal wiring I have been instrumental in encouraging trials with.

I know through the demonstrations received the new internal wire has been a very good choice and compliments the precision of the materials and mechanics that are selected for this arm.   

I am looking on occasion to find a shortcoming in the Tonearms performance, this will be carried out as a very subjective assessment, using many years of experiences of differing equipment to draw on.

If I take care with the preparation for such times and follow the disciplines I have developed for the replay of Vinyl in my listening environment, I find it very hard to find a detractor or an element of unwanted influence from the Tonearms usage.          

At the end is an unipivot design and all kind of developed distortions pass trhough the pivot trhough one single " point " with no real opportunity to dissipates it and the developed feedback pass trough that single " point " when in a gimball those distortions pass trhough a bearing with more than one point ( in the EPA 100 are 25 ruby balls. ) that helps to dissipates it and feedback too. 

This comment is complete nonsense and here is why -

A unipivot has a higher contact force due to the point load and mechanically is actually more rigid through that point load than gimbal bearings. With traditional bearings such as the Technics  you have multiple balls in the ball race, each rattling around, and loose. If the bearings in the Technics are not loose the arm won't work.

In terms of energy transfer - when you have 2 materials joined and send energy through that joint some energy passes through and some gets reflected back.

In the case of your Technics example the roller bearings provide a multiple paths for energy flow and multiple reflections back into the arm tube.

Properly designed the unipvot is more likely to have far superior control of energy flow through the pivot than a gimbal arm.

And please don't confuse the unipvot wobble with energy transfer - these are two different issues.

The statement quoted above shows a complete lack of understanding of basic engineering engineering principles.

 I already said twice: an unipivot characteristic is its aliveness that in reality is higher distortion, you can’t do nothing about.

This is hilarious - the funniest comment I've seen this year.

Of course most cartridges have a cantilever that is by definition a unipivot.

Perhaps the author should stick to digital where everything is only a little bit out all of the time.

 

Dear @dover : " I’m not talking of " control of energy ..." but about how that " superior control in unipivot vs gimball " is sensed by the cartridge cantilever with its negative effects vs gimball.

 

The FCL designer posted and I pasted here:

 

"""

The classic unipivot tonearm can sound quite good but has some serious drawbacks. First of all, we never could get used to the handling of the wobbling ........ Another, often OVERLOOKED POINT IS THE FACT,THAT ALL THE ENERGY FROM THE TONEARM IS DERIVED AT THIS TINY POINT ( bearing. ) INTO THE TONEARM BASE. THE ENERGY THAT A CARTRIDGE TRANSFER INTO THE ARM WAND when playing an LP IS ENORMOUS and THE ENERGY TRANSFER AT THE BEARING POINT IS VERY CRITICAL. "

 

So the feedback goes to the cantilever with that same energy along other developed " movements " that develops higher kind of distortions.

You don’t like Technics but other than the AT 1100 has the lower friction bearing levels that any non-unipivot tonearm and not even a bat can hear that " rattling " you are talking about .

 

In the other side your stupidity levels gone higher when posted:

 

" most cartridges have a cantilever is by definition unipivot "

 

for me your statement is not an hilarious one but the stupidity of the century when you are comparing it against the arm unipivot. Think a little of that stupid comparison Certainly makes sense to you and as usually and as @mijostyn posted talking of one of your post s you act with some audiophiles as he and specially me where always try to hit in any way but unfortunatelly you never have success and you never will.

 

R.

 

Wow @dover you really pissed @rauliruegas off! 

You can not compare a cantilever to a unipivot. Let me see if I can explain this.

A gimbal tonearm has two degrees of freedom, vertical and horizontal. Consequently it has two resonance frequencies vertical and horizontal. Proper management of the tonearm's effective mass versus the compliance of the cartridge to get these resonance points at a frequency that does not effect either the sound or the function of the arm. A unipivot arm has a third degree of motion, torsional and consequently a third resonance frequency which will always be higher but of lower magnitude. None the less it will always f--k up the bass. Unipivot arm designers have gone to great lengths to control this. Graham uses opposing magnets and Basis uses a secondary bearing. These designs raise the torsional resonance above the audio range. 

Properly adjusted bearings are slightly preloaded. They do not rattle unless it is a crappy arm or someone has played with the bearing adjustment. The lowest possible friction is less important than tight control of the cartridge so that the arm can control all the cartridges energy and pass it on to a higher mass were it is dissipated, namely the turntable. This is the reason to have a massive tonearm board solidly mounted to a heavy chassis. Today the best arm/ cartridge/ turntable combinations are extremely quiet. It is very difficult to hear any "needle talk." 

In short, the basic unipivot arm is a cheap, easy way to build a junk tonearm. Certain individuals which I shall not name even tried to sell their cheap junky unipivot arm without antiskating trying to convince everybody that it sounded better without it. The majority of us almost died laughing. The fact that many people seem to think they sound great is just a matter of inexperience. If you do not know what great sounds like you can not know what less than great sounds like. Many of us have never heard a truly great system. (I include the room in my definition of system) I had not heard one until about 15 years into my audiophile career and that was a real ear opener. Knowing what is possible gives one direction.