XPost: alt.audio.pro.live-sound, rec.audio.pro   
   From: digilyd@hotmail.com   
      
   Trevor wrote:   
      
   > "William Sommerwerck"  wrote in message   
   > news:j14aqd$po2$1@dont-email.me...   
      
   >> We know nothing about the driver design, the crossover design, the   
   >> bass alignment, etc.   
      
   Fairly well documented in the archive version of Yorkvilles web site, bass   
   alignment seems identical and is irrelevant as this is about one box   
   sounding open in the high range, and one box sounding dull.   
      
   > All true, but I assume Peter expected the Driver design, Xover   
   > design, to be very similar, but as Dick pointed out, the driver is   
   > unlikely to have exactly the same BL product (I would have expected   
   > less than a 6dB difference in efficiency from a reputable   
   > manufacturer however, maybe not for white van speakers :-)   
      
   And with a bit of loss of efficiency there is no point in not leaving the   
   high range section "as is" since there is no problem to solve by lowering   
   its impedance. If efficiency goes out with the bathwater there also is not   
   any reason to make the 4 Ohm version in the first place, other than perhaps   
   saving on magnet size.   
      
   > And I would hope the box design/bass alignment is the same IF the   
   > model is supposed to be the same at least. But no guarantees there   
   > either.   
      
   Hopefully Yorkville can explain this. I will make a summary folder up when I   
   know more. For me the 6 dB output difference is the difference between   
   outdoor vox projection to 120 meters or to 60 meters for each box.   
      
   > Trevor   
      
     Kind regards   
      
     Peter Larsen   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)