sidu Posted September 28, 2021 Share Posted September 28, 2021 Hello, Anyone can share? I will be grateful for help. Link to comment Share on other sites More sharing options...
justinsweber Posted September 28, 2021 Share Posted September 28, 2021 I don’t think Al made it public source. Might just purchase from him. Link to comment Share on other sites More sharing options...
sidu Posted September 28, 2021 Author Share Posted September 28, 2021 I know all the history, but maybe someone could help? Link to comment Share on other sites More sharing options...
mboxler Posted September 28, 2021 Share Posted September 28, 2021 6 hours ago, sidu said: Hello, Anyone can share? I will be grateful for help. Do you have the schematic for the ES400? If not, there's one on Al's website, in the Extreme Slope section. I assume it's the latest schematic. I believe you can take those values and divide all of them by 1.75 (700/400) to get an ES700. I think the first series inductor is 3mH (?). Do you already have the ES5800, or were you planning on a 2-way system? If you would like, I can try to run some before/after simulations just to see how the old/new values play together. I can't guarantee the resulting values will equal Al's ES700 though. Maybe wait until someone posts an official schematic before trying this approach. Mike Link to comment Share on other sites More sharing options...
sidu Posted September 28, 2021 Author Share Posted September 28, 2021 Than 3 hours ago, mboxler said: Do you have the schematic for the ES400? If not, there's one on Al's website, in the Extreme Slope section. I assume it's the latest schematic. I believe you can take those values and divide all of them by 1.75 (700/400) to get an ES700. I think the first series inductor is 3mH (?). Do you already have the ES5800, or were you planning on a 2-way system? If you would like, I can try to run some before/after simulations just to see how the old/new values play together. I can't guarantee the resulting values will equal Al's ES700 though. Maybe wait until someone posts an official schematic before trying this approach. Mike Thank You, I know, but maybe someone share schematic for ES700. Recently I was try to recalculate AP12 network values and there was mismatch in calculations so I gave up. I have 2 way system based on GPA416-8B/Altec 802-G/511b horn with AP12-700 crossover. I also would like to try Altec 811b and 32C. Lukasz Link to comment Share on other sites More sharing options...
mboxler Posted September 28, 2021 Share Posted September 28, 2021 43 minutes ago, sidu said: Than Thank You, I know, but maybe someone share schematic for ES700. Recently I was try to recalculate AP12 network values and there was mismatch in calculations so I gave up. I have 2 way system based on GPA416-8B/Altec 802-G/511b horn with AP12-700 crossover. I also would like to try Altec 811b and 32C. Lukasz I do have a folder containing all the AP-XXX schematics that I downloaded from Al's website a long time ago. It contains his AP-700 schematic. Let me know if you want me to PM you that folder. Mike Link to comment Share on other sites More sharing options...
sidu Posted September 29, 2021 Author Share Posted September 29, 2021 9 hours ago, mboxler said: I do have a folder containing all the AP-XXX schematics that I downloaded from Al's website a long time ago. It contains his AP-700 schematic. Let me know if you want me to PM you that folder. Mike Send me, please. Link to comment Share on other sites More sharing options...
Wirrunna Posted September 29, 2021 Share Posted September 29, 2021 sidu, ALK has the details of how to calculate ES networks on his website under in his white paper called A case for extreme slope crossover networks. I built ES networks - https://www.stereonet.com/forums/topic/118361-k-horn-crossovers-from-ak-3-to-universal-to-es/ Link to comment Share on other sites More sharing options...
sootshe Posted September 30, 2021 Share Posted September 30, 2021 1 1 Link to comment Share on other sites More sharing options...
sidu Posted September 30, 2021 Author Share Posted September 30, 2021 2 hours ago, sootshe said: Thank You sootshe. Link to comment Share on other sites More sharing options...
Rockets Posted September 30, 2021 Share Posted September 30, 2021 This is quite different than the 'White Paper' version. Must be the latest 'revision'. White paper also had a 4 ohm "High Output" Are there any schematics for the ES7500 floating out there? I wish to take the time to say THANK YOU to ALK for sharing and posting these once upon a time. His work lives on even in his absence. I certainly appreciated his past efforts and knowledge sharing. Thank you Al. 😉 Link to comment Share on other sites More sharing options...
Wirrunna Posted September 30, 2021 Share Posted September 30, 2021 8 hours ago, Rockets said: This is quite different than the 'White Paper' version. Must be the latest 'revision'. White paper also had a 4 ohm "High Output" The circuit that ALK gave us to calculate values for different cross over frequencies has an 8.2 ohm resistor across the input to lower the input impedence to 4 ohms, leave that resistor out and you have an 8 ohm impedence. The low pass network is different to the ES700 circuit and when I queried ALK about this he said it was a good idea at the time but there is no difference in performance. Link to comment Share on other sites More sharing options...
justinsweber Posted October 1, 2021 Share Posted October 1, 2021 These crossovers have very specific applications requiring use of the k33. Don’t honk you’ll find it’s a good template. Might trying directly interfacing with Al. Link to comment Share on other sites More sharing options...
crok Posted December 20, 2021 Share Posted December 20, 2021 Hello, I also need these schematic. Please send me to PM. Many thanks Link to comment Share on other sites More sharing options...
crok Posted December 20, 2021 Share Posted December 20, 2021 On 9/28/2021 at 9:44 PM, mboxler said: I do have a folder containing all the AP-XXX schematics that I downloaded from Al's website a long time ago. It contains his AP-700 schematic. Let me know if you want me to PM you that folder. Mike Forgot to quote. 😊 Link to comment Share on other sites More sharing options...
Cooper60hz Posted May 19, 2023 Share Posted May 19, 2023 On 9/28/2021 at 8:09 AM, mboxler said: Do you have the schematic for the ES400? If not, there's one on Al's website, in the Extreme Slope section. I assume it's the latest schematic. I believe you can take those values and divide all of them by 1.75 (700/400) to get an ES700. I think the first series inductor is 3mH (?). Do you already have the ES5800, or were you planning on a 2-way system? If you would like, I can try to run some before/after simulations just to see how the old/new values play together. I can't guarantee the resulting values will equal Al's ES700 though. Maybe wait until someone posts an official schematic before trying this approach. Mike Hi mike curious how you got 3mh for the first series inductor? Has anyone does built the es400 off the schematic in the manual? Thank you Link to comment Share on other sites More sharing options...
mboxler Posted May 19, 2023 Share Posted May 19, 2023 1 hour ago, Cooper60hz said: Hi mike curious how you got 3mh for the first series inductor? Has anyone does built the es400 off the schematic in the manual? Thank you PM sent. Link to comment Share on other sites More sharing options...
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