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   Home » Audio Discussions » The ULF cannel for my new listening room. (42 posts, 3 pages)
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  »  New  Macondo’s lowest channel...  Good highs...  Horn-Loaded Speakers Forum     148  949816  09-15-2010
  »  New  Romy The Cat's new Listening Room..  Won't be the last time he makes that trip!...  Audio Discussions  Forum     478  1874272  03-28-2010
  »  New  Getting more power from SET vs. properly distorting SS...  Sound Board...  Audio Discussions  Forum     4  32329  05-09-2011
  »  New  How to get a LOT of SET power...  Not a refrigerator but......  Audio Discussions  Forum     101  579030  02-26-2006
09-26-2018 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,540
Joined on 05-28-2004

Post #: 41
Post ID: 25122
Reply to: 25121
Eventualy!
OK, I have found the problem I had with my digital and analog crossovers, now everything is consistent. It turn out that my contractor why built for me the IB manifold confused the polarity of right and left channels. I was not able to use the phase tester with analog crossover as the filtration too deep and I have no access to the drivers up close.  With digital crossover I was able to bypass the filter and test the phase and everything was in phase. With analog crossover the R and L IB channels were out of phase and the reason why the digital crossover sounded so well was because my digital crossover was set to invert polarity of channel B. I discovered the problem when I made the first time sweep for both channels. 
 
So, the digital filter is gone. I end up with 35Hz Bessel and below is the response for both channels individually. I am positively surprised, (VERY SURPRISED!!!) with final sonic result I got and with relatively low amounts of efforts it took. I will work with small bells and whistles of response and tonal/dynamic (tubes, cables etc…) aspect of sound but the basics is there…

IB_BothChannals.png



"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
09-26-2018 Post does not mapped to Knowledge Tree
anthony
Posts 193
Joined on 08-18-2014

Post #: 42
Post ID: 25123
Reply to: 25122
Awesome
You said it sounded like a phase problem and it was.  Couldn't have been easier to fix either. 
Page 3 of 3 (42 items) Select Pages:  « 1 2 3
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Macondo’s lowest channel...  Good highs...  Horn-Loaded Speakers Forum     148  949816  09-15-2010
  »  New  Romy The Cat's new Listening Room..  Won't be the last time he makes that trip!...  Audio Discussions  Forum     478  1874272  03-28-2010
  »  New  Getting more power from SET vs. properly distorting SS...  Sound Board...  Audio Discussions  Forum     4  32329  05-09-2011
  »  New  How to get a LOT of SET power...  Not a refrigerator but......  Audio Discussions  Forum     101  579030  02-26-2006
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