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OO1

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Posts posted by OO1

  1. total BS   there were no serious issues with resonance from the LS cabs , resonance was a tad noticeable  with the 200W Lascala Industrial speakers when they were pushed hard  and klipsch resolved the issue by beefing up the LSI cabs in the early 80's , I own the LSI  .

     

    more BS   there was no problems either with the 1/2 inch  Heresy 1 or Cornwall 1 rear panels  or there would have been thousands of threads on the subject over the years   , I also own the Heresy- Cornwall  with 0 problems .

     

     

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  2. 4 hours ago, KT88 said:

    Do you think that this type of braces could cause unwanted reflexions? 

      in an LS bass bin  ,   thicker panels must be all around including the panels of the dog house  in order to tame the resonance from the top+ bottom + the sides +the dog house , 2 horizontal braces cant replace all these panels  without causing unwanted reflections . 

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  3. 2 hours ago, Invidiosulus said:

      engineering and cost decisions were made that leave things less than perfect.

     

      klipsch engineering had nothing to do with it  ,  the realities during the 70's and 80's warranted  cost cutting measures  across the entire industry as interest rates were over 20% .   yet ,  PWK still used fir plywood , BB ,   marine plywood  , copper plate badges ,  expensive grille fabric and veneer while the competition  used chip board , vinyl  ,  plastic grilles and badges  and cheap speaker fabric to cut their production costs  . if you ask me ,  klipsch engineering did pretty good 

     

     

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  4. 11 hours ago, Invidiosulus said:

    IMG_2053.thumb.png.5b8d46768ae2d5ef9c3c5dd01c4ff77d.png

     the picture above was taken when PWK was experimenting with the 200 wpc LSI speakers , the problem was that the LSI series used regular LS home cabinets   , while the LS cabinet was not originally designed to handle 2x the power rating in a commercial setting  .

     

    -the picture also has nothing to do with the 100 wpc  LS for home use which did not resonate at the 50% lower power rating ,   while experimenting with braces PWK found out that add-on braces caused unwanted reflections in the LS1 bass bin , for that reason , PWK never approved the use of braces in an LS1 or LSI  bass bin 

     

    - instead  , effective early 80's , a new LSI cabinet was released with beefed up panels to increase the performance of the LSI bass bin ,  these advances eventually trickled over to the new LS II series with 1 inch MDF .

     

    here is an early 80's LSI cabinet with thicker plywood featuring rounded corners and rounded openings for the mids and tweeter horns 

     

    Klipsch La Scala    Industrial Version

     

     

     

     

     

     

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  5. 1 hour ago, Invidiosulus said:

     You are deluding yourself if you think there aren’t far better modern tweeters available.

      there always was  2 EV tweeters used by klipsch heads ,  the 1st the K-77  , because most middle aged adults cant hear past  12-14 Khz ,   but for the few Boneheads  who can hear past 15000 Hz ,  the 2nd tweeter is the EV-T350 @ 3500 to 23000Hz  

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