Deang Posted January 3, 2022 Share Posted January 3, 2022 @JRH Was the PD5-VH loaded in with the AK filter by chance? I have like three different stories for this. Thanks! Dean Quote Link to comment Share on other sites More sharing options...
OO1 Posted January 4, 2022 Share Posted January 4, 2022 4 hours ago, Crankysoldermeister said: @JRH Was the PD5-VH loaded in with the AK could also be the K51V - Quote Link to comment Share on other sites More sharing options...
Deang Posted January 4, 2022 Author Share Posted January 4, 2022 There is a possibility that all three were used for a short time. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted January 9, 2022 Share Posted January 9, 2022 If I am not mistaken the transition from the AA to the AK in the Klipschorn was done to accomodate the K-55M which as you konw typically runs about 1.5db hotter than the K-55V. Let see what the experts have to say though. I have never seen the K-51V used in a Klipschorn but many in the Cornwall. Quote Link to comment Share on other sites More sharing options...
Deang Posted January 9, 2022 Author Share Posted January 9, 2022 Turns out, only the EV prototypes/engineering samples were "1.5dB hotter” - more like a slightly elevated section in the FR. I guess I will dump what I’ve learned here instead of Technical. It started with some back and forth with John Allen. We occasionally trade email and talk a couple of times a year. So yeah, we were talking about K-55’s and his new driver - and of course networks. John Allen's response to my statement, which follows the most popular narrative. 3 Quote Link to comment Share on other sites More sharing options...
Deang Posted January 9, 2022 Author Share Posted January 9, 2022 Okay, I trust John, but wanted to corroborate the statements. So, while waiting on @JRH to respond, I found this Kerry Geist post in the archives, which mirrors what John said. 2 Quote Link to comment Share on other sites More sharing options...
Deang Posted January 9, 2022 Author Share Posted January 9, 2022 The “official” timeline doesn’t mention the K-55-M with the development of the AK network, but with the AK-2 network - which now makes perfect sense - corroborating both John Allen and Kerry Geist. Quote Link to comment Share on other sites More sharing options...
Deang Posted January 9, 2022 Author Share Posted January 9, 2022 The AK-3 was the correction that maybe should have been done earlier than it was. The network is the same as the AK, with the exception of the shunt cap value on the woofer. So, it appears as if the AK was developed with something other than the K-55-M. That’s the appearance - some of the dates I have could be off, and the information in the timeline could be incomplete. I don’t who is left other than Jim that can clear this up. Quote Link to comment Share on other sites More sharing options...
JRH Posted January 10, 2022 Share Posted January 10, 2022 John's recollection is the same as mine. 3 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 17, 2022 Share Posted January 17, 2022 NM. Quote Link to comment Share on other sites More sharing options...
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