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   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

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   Message 51,971 of 52,877   
   Alex Pogossov to Phil Allison   
   Re: Professional Radio Engineer   
   21 Dec 12 16:20:27   
   
   From: apogosso@tpg.com.au   
      
   "Phil Allison"  wrote in message   
   news:aji2eiFjcm0U1@mid.individual.net...   
   >   
   > "Alex Pogossov"   
   >   
   >>   
   >> And besides, "professionals" do not use 6.3mm jacks for the speaker   
   >> connectors, unless the contacts are gold plated. With nickel plated   
   >> steel, contact resistance is unstable within a few milliohms which is   
   >> no-no for any decent audiophil!   
   >   
   >   
   > ** You must be thinking of "audiophools" not audiophiles.   
   >   
   > Nickel plated *brass* 1/4 inch jacks and plugs are fine for speakers,   
   > millions of instrument amps have used them for decades. Removal and   
   > insertion plus occasional cleaning is all that is needed.   
   >   
   > Gold plating is only for small signals.   
   >   
   Ah, was kidding...   
   For the instrument amps, perhaps a jack is OK, but audiophools shall use   
   enormous gold plated terminals, and a special litz speaker wire of perhaps   
   2000 insulated 0.07mm strands each, so that ohmic loss is small and constant   
   from DC to 1MHz..Otherwise you lose transparency of the highs!   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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