High Efficiency Speaker Asylum

Posted by jdza (A) on November 04, 2009 at 20:02:58

In Reply to: RE: Best Sounding Midrange Horn/Driver posted by Maxophone on November 04, 2009 at 19:24:42

In absolute terms the newer compression drivers are significantly better than the old.Of the ones I mentioned the TAD is the only truly low colouration reproducer ,easily running with high quality low eff drivers in the tonality race.

My JBL2435 have been modified and sound identical to my 435Be.Exciting to listen to with massive drive but compared to the TAD a little shut in and busy sounding ,but still second best.

I love the 2440 with the aquaplased 2450 SL diaphragms. It is open and relaxed sounding,but lacks the speed and detail retrieval of the 4003.These are currently serving as mid drivers in Khorns in our tv room producing fatigue free sound on BBC to Barney.

The standard 2440 can send shivers down your spine on violin and horn reproduction.However I suspect this is secondary to resonances in the upper treble. It also lacks in detail retrieval compared to the above units.

The Japanese Gotos are on their own planet. At the same time stunning and frustrating,as fragile as an old Jaguar or Maserati and just as exciting.

Detail on Iwata horns can be found in the now defunct French magazine l'Audiophile

Edits: 11/04/09   11/05/09   11/05/09

• Goto.... - JeffreyJ 14:39:11 11/09/09 (4)
  In Reply to: RE: Best Sounding Midrange Horn/Driver posted by jdza on November 04, 2009 at 20:02:58

  greetings...
  
  couldn't help but read your feelings on Goto.. and I agree 100%... do you think there would be any interest in a Be replacement diaphragm with a proper voice coil former for the 370 series drivers?
  
  I was thinking that before I sent $$$$ to japan again, I would just develop a better and stronger diaphragm for them...
  
  thoughts?
  
  Peace,
  Me
  

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  • RE: Goto.... - jdza 04:29:09 11/10/09 (3)
    In Reply to: RE: Goto.... posted by JeffreyJ on November 09, 2009 at 14:39:11

    

    Many years ago I collected vintage Jaguars. Being inherently poor I could not afford a proper car-so despite a garage full of vehicles my wife and I often had to walk.Then one day I snapped and sold them all (well almost all of them). Now I get slightly nauseous when I see a Jaguar.
    
    I am afraid i feel much the same about Goto now. There are aspects other than the diaphragms.. On some occasions the voice coils would scrape.I got the feeling that the weight of the magnet would cause shift over time and they had to be realigned now and again. Add to that a slightly histrionic Japanese person accusing me of being clumsy and listening too loud and just generally being stupid and the fun starts wearing thin.
    
    Finally there is the sound: Piano reproduction is so riveting and lifelike and suddenly you notice here and there is a note that should be there but is just missing-bizarre.
    

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    • RE: Goto.... - JeffreyJ 15:54:57 11/11/09 (2)
      In Reply to: RE: Goto.... posted by jdza on November 10, 2009 at 04:29:09

      
      
      

      
      I, too, got the same lecture... that any tube amp voids the warranty.. all tube amplifiers oscillate and ring... I listen too loud... etc, etc, etc...
      
      but I still hear something I like.. maybe I am just still young and dumb enough to try to play with fire... (ouch!)
      
      I think the reliability issue with the tweeter and upper midrange drivers is the voice coil former... but I figure if I am replacing that, then a Be diaphragm is an obvious thing to try... I think the diaphragm wrinkles that resulted from the pressing are the cause of the frequency response aberrations...
      
      Peace,
      Me
      

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      • RE: Goto.... - jdza 02:26:50 11/12/09 (1)
        In Reply to: RE: Goto.... posted by JeffreyJ on November 11, 2009 at 15:54:57

        If you can cook up replacement dias that are field replaceable and Be to boot ,I'll be first in the queue
        

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        • RE: Goto.... - JeffreyJ 15:46:24 11/12/09 (0)
          In Reply to: RE: Goto.... posted by jdza on November 12, 2009 at 02:26:50

          greetings again...
          
          I think you will have to send me an email... I can't announce "products" here.. against the rules...
          
          but I do already have a price quote.. have to buy ten... the issue is really the mounting to the front plate.. such a small gap in these things... I will likely have to have that front plate... but not the whole motor structure.. assuming that they are all the same.. (and you know Goto)...
          
          big laugh...
          
          Peace,
          Jeffrey
          

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• RE: Best Sounding Midrange Horn/Driver - Maxophone 20:46:35 11/04/09 (4)
  In Reply to: RE: Best Sounding Midrange Horn/Driver posted by jdza on November 04, 2009 at 20:02:58

  Thanks for your insights on these drivers.
  
  If you were unable to get the Iwata horns,what do you recommend for the closest replacement ? The Tad horn is highly regarded and copies(don't
  know the quality) are available.
  
  I am interested to know about your complete system using the Tad 4003.
  What are you using for other drivers/horns and crossover type,range,
  slopes ? Cut-throat's comments have me thinking about first order slopes.
  It seems as though they would make the compression drivers sound aggressive and maybe overpower them unless crossed very high.
  Any thoughts ?
  
  
  
  
  
  
  

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  • RE: Best Sounding Midrange Horn/Driver - jdza 20:54:18 11/04/09 (3)
    In Reply to: RE: Best Sounding Midrange Horn/Driver posted by Maxophone on November 04, 2009 at 20:46:35

    Click on the A next to my moniker.This will lead you to my profile.Click on my system for detail.

    For other horns ,I'm afraid you'll have to ask someone else. Sawdust is not my favourite pastime so I stick with what I have and love.

    • http://cgi.audioasylum.com/systems/8608.html   (Open in New Window)

    
    

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    Edits: 11/04/09

    • That looks crazy - Vince S 11:34:00 11/06/09 (0)
      In Reply to: RE: Best Sounding Midrange Horn/Driver posted by jdza on November 04, 2009 at 20:54:18

      Anyway how does it sound?
      Aren't located in France?
      
      Cheers,
      V.
      

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    • I think i have said this before... - Oface 05:13:26 11/05/09 (0)
      In Reply to: RE: Best Sounding Midrange Horn/Driver posted by jdza on November 04, 2009 at 20:54:18

      but what a killer looking system......love the way the bass horns are integrated into everything , house,system,decor....
      
      great job, too bad I wasn't in South Africa to have a listen...
      
      
      
      -chris
      

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    • RE: Best Sounding Midrange Horn/Driver - Maxophone 23:01:47 11/04/09 (0)
      In Reply to: RE: Best Sounding Midrange Horn/Driver posted by jdza on November 04, 2009 at 20:54:18

      What a fantastic system.Looks like it would go perfect with fine bordeaux !
      
      

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