hanksjim1 Posted July 3, 2019 Share Posted July 3, 2019 I am curious whether the notation in the Klipsch Heritage Timeline "1955: K-500 / 5000 network phased out in favor of the 1 RC (Type A network)" is accurate? I have a Klipschorn built on June 21, 1957, that I am pretty sure has all original components, and it has the 500/5000 W2 network. Indeed, there is a 1957 price list that shows the W2 available separately and as an exchange/upgrade. Additionally, there is an upgrade installation sheet that states the "500/5000 W2 is the 1957 standard for Klipschorns" I searched the site, but couldn't find any additional content beyond the timeline. I see the 500/5000 W5 was introduced at the same time to coordinate with the option of the T-35 tweeter (aka K-77) If so, did the W5 become the 1RC? Quote Link to comment Share on other sites More sharing options...
Budman Posted July 3, 2019 Share Posted July 3, 2019 https://2d73e25b29782b6d6766-9c8af5cbfef16739445bc76457060528.ssl.cf2.rackcdn.com/KhornTimeline_635116436015580000.pdf Quote Link to comment Share on other sites More sharing options...
hanksjim1 Posted July 3, 2019 Author Share Posted July 3, 2019 Thanks Budman...yes, that is the document I believe is incorrect... Quote Link to comment Share on other sites More sharing options...
hanksjim1 Posted July 8, 2019 Author Share Posted July 8, 2019 Looks like the switch was from the K-500/5000 to a Type 1RB...still curious about cut over date..definitely not 1955 Quote Link to comment Share on other sites More sharing options...
JRH Posted July 8, 2019 Share Posted July 8, 2019 This will take a little digging. Answers later this week. Quote Link to comment Share on other sites More sharing options...
JRH Posted July 11, 2019 Share Posted July 11, 2019 As PWK would say, "I disagree with the author". That author would be me! I've spent the last hour and a half searching our pricelists and network schematics. The "final word" on networks will require may hours if not days of sifting. What I can say is the following, primarily based on pricelists: 570900 K-500-5000 without a suffix last appears 571101 W2 suffix appears. I believe this is in association with the first use of an autotransformer. 580519 W5 suffix appears. K-77 introduction. 630501 W6 appears. This may account for the change from an SAHF to a K-55. 640601 "1" appears. This likely coincides with the K-400 introduction. 670401 "A" appears. 711001 "AA" appears. Attached are a few clues. Quote Link to comment Share on other sites More sharing options...
hanksjim1 Posted July 11, 2019 Author Share Posted July 11, 2019 Thanks Jim, much appreciated...fills a major timeline void. Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted July 25, 2019 Moderators Share Posted July 25, 2019 That is incredible! Very interesting stuff. Quote Link to comment Share on other sites More sharing options...
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