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                                                         fiogf49gjkf0d 
		Hello,  no joke!
  please read in the middle: http://www.hm-moreart.de/11.htm
  look the double horn constructions with measurements, Saxophon Trombone Posaune Kornett SUB Fanfare RDH20
  best documented the Cornet: http://www.hm-moreart.de/104.htm
  
		look the measurements of the SAXOPHON, better as can be!! no joke. http://www.hm-moreart.de/86.htm
  i take the BG20 only invers as a back driver, not 
		listenable from listening position, 
		but bass by horn mouth distance and membran movement cross setting with the front driver. 
 
  DIY Horns
 http://www.hm-moreart.de/1.htm
 less is more
 
                                                        
                                                        
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