Any film or metalized film capacitor with any type of film material should work fine.The summary of the guide was that it is best to use film capacitors. Since i never dealt with them before i am looking for some help in choosing the right one.
As you're making a really cheap speaker any such concerns are a complete waste of time.I am making a really simple cheap speaker (consisting of bluetooth amplifier ZK-502C, Dayton audio TCP115-4 and Dayton audio ND16FA-4) and i need a capcitor to cut low frequencies for tweeter. Usualy i used a electrolytic or ceramic capacitor to cap it at around 3500Hz. But today i read a guide on crossover and both types of capacitors are said to have negative effect on audio quality. The summary of the guide was that it is best to use film capacitors. Since i never dealt with them before i am looking for some help in choosing the right one.
Ok, so if i do a search on aliexpress, i say film capacitor and the uF rating is the same as if i was searching for electrolytic or ceramic capacitor ? In my case its usualy around 7uF. How about voltage, i usualy use 25 or 30V if i supply my amplifier with 25V, but if i remember correctly u really need only something like square root of that voltage which would be about 5V ? Or maybe 7V to be on the safe side ?Any film or metalized film capacitor with any type of film material should work fine.
Parts Express, for example, has a good selection.
Thank you. I will check prices of film capacitors and if they are to high, i will just use the usual electrolytic or ceramic capacitors. Btw i saw you can also make a non polarized electrolytic capacitor using 2 polarized ones. Simply connecting the negative poles together. and then the uF rating is /2 of the original capacitors, in the case of connecting 2 10uF capacitors, the capacity of the duo will be 5uF. This would be neat since i have tons of polar capacitor lying around. But there are probably negative effects compared to simply using 1 non polar capacitor ?As you're making a really cheap speaker any such concerns are a complete waste of time.
Even in top end (VERY expensive) speakers it's highly unlikely there would be any audible difference.
Ok, so if i do a search on aliexpress, i say film capacitor and the uF rating is the same as if i was searching for electrolytic or ceramic capacitor ? In my case its usualy around 7uF. How about voltage, i usualy use 25 or 30V if i supply my amplifier with 25V, but if i remember correctly u really need only something like square root of that voltage which would be about 5V ? Or maybe 7V to be on the safe side ?
Thank you. I will check prices of film capacitors and if they are to high, i will just use the usual electrolytic or ceramic capacitors. Btw i saw you can also make a non polarized electrolytic capacitor using 2 polarized ones. Simply connecting the negative poles together. and then the uF rating is /2 of the original capacitors, in the case of connecting 2 10uF capacitors, the capacity of the duo will be 5uF. This would be neat since i have tons of polar capacitor lying around. But there are probably negative effects compared to simply using 1 non polar capacitor ?
No.So doing that (connecting 2 polar capacitors) can actualy be better soundwise than single non polar ?
That's just down to the one with more zeros added to the price being "better"!the proverbial "Golden Ear" (those that can hear the difference between a normal power cord feeding the amp, and a super expensive, shielded, no-oxygen copper, power cord).
No, it should be the same - and no different type is going to make any audible difference.So doing that (connecting 2 polar capacitors) can actualy be better soundwise than single non polar ? Do you maybe know where i could find some data on that cause im interested in it, or if you maybe know
I dont have any of those instruments sadly, all i have is a multimeter.
As I said at the time, no resistors needed - they are completely pointless.This is how i was told on this forum its supposed to work. Btw, it would be nice if people of authority on a forum whose sole purpose is the exchange of knowledge would say, "i am sorry, i dont understand what you are doing, can you clarify so i can help you" instead of throwing discouraging sentences at me.
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