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• it is deceptive.... - JeffreyJ 06:39:10 04/08/09 (4)
  In Reply to: RE: 114dB posted by Donald North on April 07, 2009 at 17:48:05

  the upper horn is 114dB... I don't find that the hard to believe number... well, easier to believe... the hard to believe number is the the bass being 114dB.. 114dB down to 30 Hz required a large, long horn... so he does this by using an amp built into the speaker for the bass... so the bass is significantly lower in sensitivity, but boosted to the upper horn level with the amp...
  
  so, with one watt, he gets 114dB out... it's just that the one watt isn't directly driving the bass... no different than some other manufacturers... Avant Garde and myself included (on occasion)... just think of it as biamping with the bass amp built-in... then the customer only has to provide a flea powered amp...
  
  Peace,
  Me
  
  

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  • exactly. - gordan 07:41:32 04/08/09 (3)
    In Reply to: RE: it is deceptive.... posted by JeffreyJ on April 08, 2009 at 06:39:10

    a bass section is amped. that's the only way to reach the efficiency of an upper horn in reasonable domestic conditions. i have no backyard do build a 20m concrete horn for bass.
    
    i really don't know if 114 db efficiency is a correct number for oris swing but i was told that it is, and it behaves like that - certainly more efficient subjectively than avantgarde duo i've heard. i guess lots is to be jugded from a driver chosen - BMS 4592ND.
    
    

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    • swing - roli10 04:57:24 04/14/09 (0)
      In Reply to: RE: exactly. posted by gordan on April 08, 2009 at 07:41:32

      For what stand for the way the swing speaker enclosure
      Why it is built like that?
      Thanks
      
      
      

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    • RE: exactly. - Donald North 11:00:17 04/08/09 (1)
      In Reply to: RE: exactly. posted by gordan on April 08, 2009 at 07:41:32

      What powers the midbass-bass section: tube :) or transistor :( ?
      
      
      Donald North
      
      

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      • RE: exactly. - gordan 15:19:47 04/08/09 (0)
        In Reply to: RE: exactly. posted by Donald North on April 08, 2009 at 11:00:17

        gainclones, 30w
        
        

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