Maz4bz
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Hi John, Thanks for your question and very kind compliments! TBH I'm no expert on the sound of different quality parts so I'd probably defer to others that are better experienced to answer this. There's so much written about the subject it's all a bit much for me to follow. What I would say is about my objective with the KG5.5's - it was my opportunity to learn how I could deal with the overly hot top end that to my ears and preferences made listening a bit fatiguing after a while; and to achieve a better balance so that the bass potential of these terrific speakers could be realised. The other outcome I think the new crossover achieves is better off axis response by improving the integration between the woofers and tweeter, in part achieved by going with a 2.5 way crossover. This outcome makes the KG's sound better in more places in my room. Thinking about my objectives in the context of your question then, my focus was on making some pretty gross changes to haul down the tweeter. From this perspective I didn't need to use expensive parts to achieve that. The other consideration for me was validating a design, without spending lots on parts that might have gone to waste if I didn't achieve my objectives. So to answer that part of your question I just used what I had on hand and purchased basic parts where needed. I was so happy with what I got I simply left it there. TBH as a single dad, spending big on expensive parts that I didn't seem to be able to hear, and that would be hidden away in the cabinets never to be seen again, just wasn't much of a priority. 🤷♂️ Hope this helps. Cheers.
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- cabinet bracing
- crossover refresh
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I used 5w resisters, same as in the original crossovers so I don't think high wattage is really important for this application.
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See the post I linked for the schematic and calculator. Easy peasy!
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Hi there. Maybe reread this... and let me know what you'd like me to expand on specifically? This is what I recommend, but it's entirely a personal taste matter how much attenuation you go with....
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Hi there, It seems you've reverted to an earlier version of the crossover that I would not recommend as it is less efficient because of the way to woofers are crossed. I don't seem to have actually posted the crossover I recommend that you work from (last version 0.23) so I've attached it here to this post inclusive of all the latest measurement data as a better starting base to work from..... 2.5way crossover V0.23.dxo
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Hi there, Good on you for having a go here. When you say you used my last design I'm not really sure what you mean by that because the crossover you've posted is somewhat different to it. Perhaps you might expand on what your objective is? Cheers.
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Fluid is optional. Not required.
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Thanks for the feedback Harry. So glad you enjoyed the outcome. It's a big investment of time and effort to upgrade the KG's as we've done but the results, I feel, are warranted. In the meantime, I've been enjoying looking at looking at Erin's Audio Corner where he uses a Klippel nearfield scanner (worth $100k) which gives a full suite of measurements. Comparatively I look at the polar of a JBL 4329P, for example, and see terrific likeness with the KG's performance. What I'm trying to say, I guess, is that the performance achievable with the KG 5.5's very high for the entry price. Enjoy! 🍻
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Looks like you have a short circuit. It's pretty easy to do. I have! Always a good idea to measure before risking a nice amp like yours. I'd retrace all your solders to identify where it deviated from your plan. Good luck! -
What's the measured impedance/resistance at the speaker binding posts when the crossover is installed and all the drivers are connected?
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Measurement tools...
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Sounds like an interesting plan, if you have measurement gear it might be worth it. Without measurement gear it'd be a bit like pin the tail on the donkey, so to speak. 😅 I would be surprised if you could hear a difference between an optimised KLF 10 with factory parts and a Frankenstein version, to be honest. In my opinion Klipsch used very good quality parts in these speakers and probably took great care to optimise the horn and driver combo. If it were me, I'd be using the Faital with a matching Faital horn in a new build and keeping the KLF factory, other than the crossover. Either way, good luck!
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Hi there, Looking at the brochure for the KLF 10 I'm going to say no it probably won't. The KG uses different drivers albeit I can see the tweeters use the same diaphragm. Naturally you can have a try and see if you like the result, the cost and effort is low and the modifications are completely reversible. For sure the KLF 10 is a two way like the KG 5.5 so changing to 2.5 will certainly assist. The only way to know for sure would be to measure the result once built up and compare to the original unmodified measured performance. Another KLF 10 owner made the L-pad modification that I did here (but tweaked to suit the KLF 10 crossover) and reported positive results, perhaps worth a read? Good luck and please do report back if you go ahead. 🍻
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It looks ideal in theory - I'm modelling using my KG 5.5 measurements. We need YOUR KG4 measurements for this to work. Without your measurements this is all just guess work. 🧐
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Probably I'd be aiming for around 10mh....
