mikebse2a3 Posted July 10, 2014 Share Posted July 10, 2014 After reading some of the latest threads I thought some here might appreciate reading these historical papers. These papers can be found on Klipsh's sitemap but I wanted to call everyone's attention to them because they are such an important insight and understanding of PWK and why properly designed Horns should be respected as one of the best ways to achieve accurate sound reproduction. 850000_Distortion_in_Audio_635110477100100000.pdf 671213_Intermodulation_Distortion_635110476718780000.pdf 3 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 The Maximum Cornerhorn 560000_The_Maximum_Cornerhorn_635110476403430000.pdf 2 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 The Piston In The Lake 481125_The_Piston_in_the_Lake_635110475570060000.pdf 1 Quote Link to comment Share on other sites More sharing options...
Chris A Posted July 10, 2014 Share Posted July 10, 2014 Cool Mike - I wasn't aware of these. Good reading material - and apropos to some recent discussions. It seems that the definition of "intermodulation distortion" may have morphed a bit over time. I'm not surprised. Chris 1 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 Planning a New Home 510717_Planning_a_New_Home_635110475913050000.pdf 1 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 (edited) PWK Thesis Stanford (December 1933) 331200_PWK_Thesis_-_Stanford_635110475185910000.pdf Edited July 10, 2014 by mikebse2a3 1 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 The Phonograph Pickup The_Phonograph_Pickup_635131943624260000.pdf 1 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 Engine Balance Engine_Balance_635145876908740000.pdf 1 Quote Link to comment Share on other sites More sharing options...
Chris A Posted July 10, 2014 Share Posted July 10, 2014 (edited) PWK Thesis Stanford (December 1933) Good lord - Terman himself signed PWK's thesis as department adviser. That's a big name, probably the reason why Silicon Valley exists and most of the really big advancements in US defense and intelligence (satellites) of the past 75 years, as well as the modern chip based computer industry. Chris Edited July 11, 2014 by Chris A 1 Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 10, 2014 Author Share Posted July 10, 2014 PWK Thesis Stanford (December 1933) Good lord - Terman himself signed PWK's thesis as thesis adviser. That's a big name, probably the reason why Silicon Valley exists and most of the really big advancements in US defense and intelligence (satellites) of the past 75 years, as well as the modern chip based computer industry. Chris Hey Chris.....a few other's PWK networked with.... 1 Quote Link to comment Share on other sites More sharing options...
Klipsch Employees Chief bonehead Posted July 11, 2014 Klipsch Employees Share Posted July 11, 2014 Be careful. Soon "the experts" will show up to crap on pwks musings.... Quote Link to comment Share on other sites More sharing options...
Chris A Posted July 11, 2014 Share Posted July 11, 2014 (edited) Two driving problems created chip-based digital computer development, the technology of which has since transformed human existence. 1) air defense systems that could do intercepting calculations in real time for directing missiles that intercept hostile flying objects, like the systems that Terman initially led in development before moving to Stanford. 2) geophysical reflection seismology data acquisition systems in the field that could automatically record literally hundreds of geophone/hydrophone channels in parallel, but simultaneously able to withstand the physical environments of land and sea that tubes can't withstand. [Texas Instruments was a subdivision of Geophysical Services Incorporated (GSI) when it developed the first silicon transistor (for geophysical use) and eventually the first microprocessor. Jack Kilby later taught at my alma mater.] PWK worked in the geophysical industry for a while, and has patents on some inventions before joining the Army in WWII, thereafter starting his own loudspeaker development and manufacturing company north of Hope, AR at a location nearby where he was stationed. I've had the distinct privilege of working in the above two fields, all while tinkering with loudspeaker designs as a hobby. I feel that I understand PWK's points of view, probably due to some of the above in addition to being a second generation engineer in these two fields. Edited July 11, 2014 by Chris A Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 13, 2014 Author Share Posted July 13, 2014 While not one of PWK's papers this one is often referenced by him in his papers so I thought others here would like to read it I they haven't already done so. Beers and Belar: F-M Distortion in Loudspeakers miketn Beers and Belar F-M Distortion in Loudspeakers 01694699.pdf Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 13, 2014 Author Share Posted July 13, 2014 Some resent research/testing of Modulation Distortion Klippel: Loudspeaker FM and AM Distortion AN_10_Loudspeaker_FM_and_AM_Distortion.pdf Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted July 13, 2014 Author Share Posted July 13, 2014 Be careful. Soon "the experts" will show up to crap on pwks musings.... Hopefully some will benefit from pwks musings so I think the risk is worth it. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted July 30, 2014 Share Posted July 30, 2014 Be careful. Soon "the experts" will show up to crap on pwks musings.... Hopefully some will benefit from pwks musings so I think the risk is worth it. Indeed they are. Quote Link to comment Share on other sites More sharing options...
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