relatively new DIYer here...
I'm attempting to ewave my old advent speakers and I'm in the process of building the crossover. However, I've hit a snag. Part-Express doesn't have the inductor I need, and won't have it in stock until mid-January.
Does anyone have a 4.0mH 18 AWG I Core Inductor lying around that they could sell me??? or ar least know where I can buy one? (Parts-Express part# 266-562)
I need two.
Thanks
I'm attempting to ewave my old advent speakers and I'm in the process of building the crossover. However, I've hit a snag. Part-Express doesn't have the inductor I need, and won't have it in stock until mid-January.
Does anyone have a 4.0mH 18 AWG I Core Inductor lying around that they could sell me??? or ar least know where I can buy one? (Parts-Express part# 266-562)
I need two.
Thanks
In short, it's a quality upgrade. It's a way of combining newer technology and better quality with the old school speakers. The sound quality from the rebuilt speaker is supposed to be really good. I don't have mine together yet so I can't speak from experience.
The econowave revolution was lead by a user named zilch, who actually died recently. The project entails removing the old tweeter and replacing it with a wave guide and high compression driver, and building and installing a new crossover. Check out the link below. I'm close to completion and it cost me roughly $135 per speaker.
Flex Your PCD Mettle: - Techtalk Speaker Building, Audio, Video, and Electronics Customer Discussion Forum From Parts-Express.com
Rev Up Your Vintage Speakers, Econowave Style - YouTube
The econowave revolution was lead by a user named zilch, who actually died recently. The project entails removing the old tweeter and replacing it with a wave guide and high compression driver, and building and installing a new crossover. Check out the link below. I'm close to completion and it cost me roughly $135 per speaker.
Flex Your PCD Mettle: - Techtalk Speaker Building, Audio, Video, and Electronics Customer Discussion Forum From Parts-Express.com
Rev Up Your Vintage Speakers, Econowave Style - YouTube
4.5mH is approximately 10 percent higher and you'd probably be OK. There would be a small difference.
Since this is an iron cored inductor, it has a low DC resistance. You might reach 4mH with two other larger inductors in parallel, otherwise you might use two smaller ones in series.
Since this is an iron cored inductor, it has a low DC resistance. You might reach 4mH with two other larger inductors in parallel, otherwise you might use two smaller ones in series.
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Parts express has lots of other 4.0mh inductors:
255-280, 255-440, 266-842, 266-922, 255-058 ...
If your xover schematic includes the DCR for the inductor, you can choose the one that is closest, but it won't make much difference here, so just picking the one that fits your budget is fine. The wire gauge does not need to be 18. All of the ones I listed could be considered an upgrade to the one that is out of stock.
255-280, 255-440, 266-842, 266-922, 255-058 ...
If your xover schematic includes the DCR for the inductor, you can choose the one that is closest, but it won't make much difference here, so just picking the one that fits your budget is fine. The wire gauge does not need to be 18. All of the ones I listed could be considered an upgrade to the one that is out of stock.
If you don't have a way to measure inductance, you can still unwind a larger valued coil to a smaller one. Use a coil calculator from the web ( E.G. Air Core Inductor Coil Inductance Calculator ) to calc the number of turns for a coil of your current value, then to the same thing for a coil of the desired value. The difference in the number of turns is how much you should unwind.
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