why is a 13" tonearm design really superior?

Hi Thuchan...some interesting comments about the use of carbon fibre in this article (see the Wilson Benesch arm)

http://www.positive-feedback.com/pfbackissues/0605/gordon.tonearm.6n5.html

The author/s have tried as hard as they can to assess the properties of these tonearms. It's a good read... :o)

Hi Moonglum, thanks for the article. I do share the impressions regarding the ET 2.5. I do not know the Wilson Benesch arm but do respect the quality and musicality of Wilson Benesch products. Is it really the carbon fibre, who knows?

I like this material very much. Of course costly but light and stiff.

best & fun only - Thuchan

Hi Thuchan and Moonglum

This is an old article but still I would dearly love to try out and own all of the arms mentioned in the article.

Regarding the ET 2.5

It used a stock VPI MK IV which came suspended from VPI. I owned one - a MKIV with an ET arm. I have learned since that all ET arms need to not move at all to sound their best. A suspended platform moves and is therefore not recommended.

The article does not state how much pressure was at the arm - The ET 2.5 arm works best at 19 psi per testing by Arthur Salvatore members. Below that and you are not hearing all detail - above and you start to lose detail. It still sounds good with 10 psi but you are not hearing it at its best. To deliver 19 at the arm requires much higher from the pump source. Pretty sure an aquarium pump can’t deliver 19 psi at the arm – correct me if I am assuming wrong.

I am using a JMW 12” under an armpod and it is working out quite well. If I had a longer arm I would not hesitate to try it.

Cheers Chris