Quad Khorns Posted January 24, 2023 Share Posted January 24, 2023 I hate to interject in this thread (because the screw topic doesn't concern me, and I have nothing of much value to contribute), but I'm curious - specifically which screws are the issue? I assume it's any screws near/in the crossover, but does this include mounting screws? Cabinet assembly screws? Are all Klipsch crossovers after a certain year using SS fasteners (let's say AK3 and AK4 crossovers)? I will add that irrespective of actual measurements taken as outlined in this thread, if I were concerned about this issue, I would avoid metal of all types. Just from my own industrial experience, any substance that can conduct electricity does have some level of impact on magnetic fields. To what degree depends on the material, and how that translates into attenuating audio frequencies I defer to those that are experimenting and taking the measurements. 3 Quote Link to comment Share on other sites More sharing options...
Ed Wolinski Posted January 24, 2023 Author Share Posted January 24, 2023 (edited) 3 hours ago, TasDom said: https://www.acrytech.com/product-category/speaker-cabinet-coatings/ I'd go with DuraTex in lieu of painting. Much more forgiving and more durable than paint. Ah. Cool. A PDF on the website shows where one can do a 'leather look'. I have a wall in my living room that is painted red & black faux leather. This is the ticket. THANK YOU! Edited January 24, 2023 by Ed Wolinski added info 3 Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted January 24, 2023 Moderators Share Posted January 24, 2023 1 hour ago, Edgar said: The specific cause(s) of the change are unknown without more information. You should consider becoming an expert witness, the lawyers would love information like that. Quote Link to comment Share on other sites More sharing options...
Klipschguy Posted January 24, 2023 Share Posted January 24, 2023 30 minutes ago, Quad Khorns said: I hate to interject in this thread (because the screw topic doesn't concern me, and I have nothing of much value to contribute), but I'm curious - specifically which screws are the issue? I assume it's any screws near/in the crossover, but does this include mounting screws? Cabinet assembly screws? It is the Phillips head screw passing through and securing the round inductor (coil) in the top right corner of the photo (AA Khorn network). The assembly screws outside the center of the inductor should be of little to no consequence. Quote Link to comment Share on other sites More sharing options...
Edgar Posted January 24, 2023 Share Posted January 24, 2023 22 minutes ago, Travis In Austin said: You should consider becoming an expert witness, the lawyers would love information like that. No disrespect intended, @Travis In Austin, but I had my fill of the legal profession back when I was trying to get my own company off the ground. Quote Link to comment Share on other sites More sharing options...
geoff. Posted January 24, 2023 Share Posted January 24, 2023 @Ed Wolinski, With regards to the AA crossover recaps using polyesters, What were your impressions? Thanks! Quote Link to comment Share on other sites More sharing options...
Quad Khorns Posted January 24, 2023 Share Posted January 24, 2023 1 hour ago, Klipschguy said: Phillips head screw passing through and securing the round inductor (coil) in the top right corner of the photo (AA Khorn network). The assembly screws outside the center of the inductor should be of little to no consequence. Gotcha, that certainly makes sense. Thanks. FYI, reviewing a picture of my AK3 networks suggests bronze-colored screws. 2 Quote Link to comment Share on other sites More sharing options...
billybob Posted January 24, 2023 Share Posted January 24, 2023 2 hours ago, Ed Wolinski said: Ah. Cool. A PDF on the website shows where one can do a 'leather look'. I have a wall in my living room that is painted red & black faux leather. This is the ticket. THANK YOU! Yes you could do leather black. Browns or monochromatic are out. Thanks! 1 Quote Link to comment Share on other sites More sharing options...
Ed Wolinski Posted January 24, 2023 Author Share Posted January 24, 2023 2 hours ago, geoff. said: @Ed Wolinski, With regards to the AA crossover recaps using polyesters, What were your impressions? Thanks! I could not be happier with the new capacitor replacement kits from JEM. Listening to a pair side by side (one uncapped and the other with new caps) has a noticeable difference. The uncapped one sounded a bit “muddy”. Well worth the time, money and effort to recap them. 4 Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted January 24, 2023 Moderators Share Posted January 24, 2023 6 hours ago, mboxler said: I'm assuming it doesn't since the reactance of a 245uh inductor is 15.4 ohms at 10 khz. Clearly the AP Calculus kids have taken over. Maybe it will switch to paint again. You guys are amazing! Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted January 24, 2023 Moderators Share Posted January 24, 2023 4 hours ago, Quad Khorns said: Gotcha, that certainly makes sense. Thanks. FYI, reviewing a picture of my AK3 networks suggests bronze-colored screws. Should be brass, bronze is ferrous/magnetic. Test with magnet. And the only screw at issue is the one keeping the air core inductor(s) in place. The AKE was well after the issue with the AA. Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted January 24, 2023 Moderators Share Posted January 24, 2023 5 hours ago, Edgar said: No disrespect intended, @Travis In Austin, but I had my fill of the legal profession back when I was trying to get my own company off the ground. We are an acquired taste. Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted January 24, 2023 Moderators Share Posted January 24, 2023 6 hours ago, Quad Khorns said: fields. To what degree depends on the material, and how that translates into attenuating audio frequencies I defer to those that are experimenting and taking the measurements. What about duct tape, nylon zip ties, or how t glue to secure the inductor to the board vs a screw down the center? The duct tape is a joke, ignore. If you have brass holding your inductor down it should be no issue. Can you post a photo of one of them that shows the inductor and the screw. Quote Link to comment Share on other sites More sharing options...
Quad Khorns Posted January 25, 2023 Share Posted January 25, 2023 1 hour ago, Travis In Austin said: What about duct tape, nylon zip ties, or how t glue to secure the inductor to the board vs a screw down the center? The duct tape is a joke, ignore. If you have brass holding your inductor down it should be no issue. Can you post a photo of one of them that shows the inductor and the screw. Put 10,000 volts on that zip tie and if conducts - don't use it jk... I don't know the actual material of the screws, I just noted the bronze color. Looking at a high definition picture, it looks more bronze color than brass. Probably just tarnished brass.... Attached is a picture. In this set of KHorns, they are tri-amped and use an active crossover. Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted January 25, 2023 Moderators Share Posted January 25, 2023 1 hour ago, Quad Khorns said: Put 10,000 volts on that zip tie and if conducts - don't use it jk... I don't know the actual material of the screws, I just noted the bronze color. Looking at a high definition picture, it looks more bronze color than brass. Probably just tarnished brass.... Attached is a picture. In this set of KHorns, they are tri-amped and use an active crossover. Agree, tarnished brass = non-ferrous/non-magnetic. But a magnet on those steel wood screws (to test your magnet of course), then magnet on each of the 3 screws holding the air cores down, and it the are not magnetic you are good to go as per @Chief bonehead. I would see what if @mboxler or @Deang or @Edgar see anything I may have missed. They obviously have an informed and experienced background, mine is rudimentary - I can but a round pin in a round hole, grab the right screwdriver for the job, and determine what is something is magnetic or not, beyond that, not so much. Travis Quote Link to comment Share on other sites More sharing options...
MEH Synergy Posted January 25, 2023 Share Posted January 25, 2023 I'm so confused, so who's screwed here? 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted January 25, 2023 Share Posted January 25, 2023 4 minutes ago, MEH Synergy said: I'm so confused, so who's screwed here? Yes, go nylon! Quote Link to comment Share on other sites More sharing options...
MEH Synergy Posted January 25, 2023 Share Posted January 25, 2023 1 minute ago, billybob said: Yes, go nylon! OMG, mind opened. So we switch to nylon and we have a new speaker. INCREDIBLE. 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted January 25, 2023 Share Posted January 25, 2023 3 minutes ago, MEH Synergy said: OMG, mind opened. So we switch to nylon and we have a new speaker. INCREDIBLE. Yes man, buy nylon, composite bolt stock. You will be brazen glow tan...tip. Quote Link to comment Share on other sites More sharing options...
Edgar Posted January 25, 2023 Share Posted January 25, 2023 20 minutes ago, Travis In Austin said: I would see what if @mboxler or @Deang or @Edgar see anything I may have missed. I found this: https://testbook.com/question-answer/if-a-brass-core-of-an-inductor-is-replaced-by-an-i--5eb0442cf60d5d42e6590554 Scroll down to where it says, "The type of core material:" and read the bolded text. A brass screw will actually reduce the inductance of an air core inductor. Quote Link to comment Share on other sites More sharing options...
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