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   Home » Analog Playback» A use of extraordinarily long arms. (7 posts, 1 page)
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  »  New  Active Tonearm Monitoring System...  The most idiotic idea I’ve ever seen...  Analog Playback Forum     2  20112  07-14-2009
  »  New  Here is my new tonearm...  Korvet TT in German...  Analog Playback Forum     9  99283  12-11-2004
  »  New  The Foolishness of Analog People..  Late to the discussion but cannot resist...  Analog Playback Forum     56  307057  01-30-2006
  »  New  Ultimate Turntable..  TT master...  Analog Playback Forum     179  540122  05-31-2004
  »  New  Tonearms criterias??..  The tonearm - turntable dependency?...  Analog Playback Forum     1  12590  02-17-2008
05-04-2008 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,283
Joined on 05-28-2004

Post #: 1
Post ID: 7358
Reply to: 12179
A use of extraordinarily long arms.
I see a lot of problems in his specific implementation but the idea of extra long arms always fascinated me. In the past I has Micro Seki 16’ arm – the longest arm I ever seen. But those Portuguese guys went further… This photograph was sent to me by a visitor of the site and I have no additional information about this arm. Do anyone did try anything like this?




"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
05-09-2008 Post does not mapped to Knowledge Tree
tuga


Posts 172
Joined on 12-26-2007

Post #: 2
Post ID: 7372
Reply to: 12179
Long arm specs...


I've finally managed to track them down.

ROSSNER&SOHN Pick-Up-Arm SI 1.2

Gimbal in a rotation cage of stainless steel sapphire-bearing with single-damped spikes of highly alloyed special steel

Headshell made of aluminium-magnesium-alloy

Pick-up-arm tube of siliciumoxyd 90% surface tensioned

Antiskating see above

Actual length of pick-up-arm: 305 mm (12 “)

Compensatory weights made of anextremly dense tungsten-alloy (19,27 g/cm³)

http://www.rossner-und-sohn.de/content/english/products/index.html


"Science draws the wave, poetry fills it with water" Teixeira Pascoaes
05-09-2008 Post does not mapped to Knowledge Tree
guy sergeant
United Kingdom
Posts 258
Joined on 08-03-2004

Post #: 3
Post ID: 7373
Reply to: 12179
Another long arm
The arm pictured above may be made by Rossner & Sohn (as is the turntable) but is definitely a good deal longer than 12".  One wonders when the benefits of better geometry become outweighed by the reduction in stiffness/structural integrity or indeed whether that is as significant as people once thought.

Another long arm here based on the Altman design but taken to extreme lengths.

08-05-2009 Post mapped to one branch of Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,283
Joined on 05-28-2004

Post #: 4
Post ID: 11294
Reply to: 11294
The HoroMusic turnable.
fiogf49gjkf0d

I do not know what Horo music means on the language where those guys are from but in English it makes a lot of fun: HororMuse of HomoMusic… :-)

Anyhow, a visitor sent me a link today to a company that do new TT.

http://www.horomusic.com/

Horo_Turnable.jpg

I can’t read what they say, so I know nothing about it. The TT looks like “sexy” but I have a concern.  The super long tonearm is good but with THAT long arm (that I might estimate is 16”-20”) in order o keep the effective mass the arm wand has to be VERY light, I lean really-really. I am sure they did it very light… BUT…

With such a light wand and with such a high surface of the wand the tonearm shall be very much exposed to vibration through air from room pressurizing by loudspeakers. The sexy looking cartridge cable that is hanging below like a violin bow does not help as well as it only increases the surface of the tonearm’s sail and the unwonted thrust from air disturbance… Probably this TT shall come with some kind of sarcophaguses that would isolate it from room’s air.

I also do not know what is the purpose of TWO THREADS to drive the platter. Sure it looks very nice….

Rgs, Romy the Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
10-01-2009 Post does not mapped to Knowledge Tree
tuga


Posts 172
Joined on 12-26-2007

Post #: 5
Post ID: 11889
Reply to: 12179
An even longer arm
fiogf49gjkf0d
Here's an even more extraordinarily long 30" arm from Horo.

horo1.jpg

horo4.jpg

(images and info from 6moons website)

It appears to be shaped like a violin bow.The piano-like plinth is a bit kitsch, though, and those legs look very flimsy...

Cheers,
Ruga


"Science draws the wave, poetry fills it with water" Teixeira Pascoaes
10-02-2009 Post does not mapped to Knowledge Tree
Markus
Posts 68
Joined on 03-07-2007

Post #: 6
Post ID: 11893
Reply to: 12179
Rossner & Sohn
fiogf49gjkf0d
The arm pictured above is 26" long IIRC. It was made as a joke, as in who's got the longest. It is not a commercial product. I guess the bending modes would be interesting.

I believe the Horo turntable is more about aesthetics than about sound.
11-08-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,283
Joined on 05-28-2004

Post #: 7
Post ID: 12179
Reply to: 11294
And the 27" long tonearm might be a Moronic as this.
fiogf49gjkf0d

27inchTonarm.jpg




"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
Page 1 of 1 (7 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Active Tonearm Monitoring System...  The most idiotic idea I’ve ever seen...  Analog Playback Forum     2  20112  07-14-2009
  »  New  Here is my new tonearm...  Korvet TT in German...  Analog Playback Forum     9  99283  12-11-2004
  »  New  The Foolishness of Analog People..  Late to the discussion but cannot resist...  Analog Playback Forum     56  307057  01-30-2006
  »  New  Ultimate Turntable..  TT master...  Analog Playback Forum     179  540122  05-31-2004
  »  New  Tonearms criterias??..  The tonearm - turntable dependency?...  Analog Playback Forum     1  12590  02-17-2008
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