Hello everyone, I am new to this forum, and I appreciate your acceptance, I am new to these needs, and I respectfully ask for your help, could you explain why I need a low pass filter to protect my / my tweeter (s)? But it is assumed that with the High Pass filter, it prevents low frequencies from passing and only lets the high frequencies pass so that the low frequencies do not damage the tweeter, right? I ask this that you may find it ridiculous but I do not understand and try to but na de naá! I put here this page that is one of some where reference is made to the low pass filter for the tweeter, it is originally in English but I post the paragraph referring to it already translated, please be patient! And help me understand! http://diygeezer.com/minidsp-4x10-hd-review/# "But with this kind of flexibility you should also be careful. For example, if you run your unprotected tweeter and turn off the low pass filter by mistake, it will be a very costly mistake. Every time I change the XO settings, silence everything and if I want to compare different XO filters subjectively, I have one in each configuration and switch between them to make subjective evaluations. " Thank you!!

Cordial greeting, friend, this theme of sound in terms of different frequencies is quite extensive to explain, so I will try to be brief and clear for your understanding. In the sound there are several ranges of high, medium, low and sub-low frequencies and in turn there are several speakers or transducers capable of reproducing these frequencies individually, being the most careful or delicate of them the high-frequency speakers or more known as tweters, brightness units we could say that they can be comprised from 1000Khz (thousand kilohertz) to a varied number of frequencies such as 15, 20Khz etc., these speakers come according to their manufacturer and design with a specific work capacity in what refers to frequency and which can reproduce this horn, is in itself specified in its packaging or data sheet and whose purpose is to inform how far it is capable of reproducing high frequencies and therefore you have to be careful with this when installing them. I suppose friend, who knows there are electronic equipment known as active croosover that allow to make the respective frequency cuts for the different types of frequency between these high frequencies and send the signals to the different amplifiers and it must be taken into account that also the tweters they do not require a lot of sound power, because if they exceed they will burn. There are also passive croossovers that do the same function as assets, so here are the different types of frequency cuts they make and they are called low pass filters, high pass, medium pass as your word says what type of frequency are the that they let pass, from what I deduce there is a mistake or confusion in the use of your term either from your friend or perhaps a mistake from the part where you take the example, the low pass lets low, the media pass, lets passing means and the brightness brightness, the different frequencies as such are directly related to the diameter of the coil of each sound horn, being the smallest the one that reproduces the brightness therefore if this brightness coil constantly receives large frequencies such as the This low will overheat to the point that it will burn, so it will require protection so that this does not happen and this will be called a high pass filter whose function is to eliminate the frequencies. Days and lows will only let high frequencies go by and depending on your design so will be the different high frequencies that you will let pass and no filters pass low as you say friend. A tweter is not only damaged by excess frequency but also by the effort that it would make to pass different frequencies to those designed to reproduce, I hope this little explanation has been able to clear your doubts. Regards

Hi. I can't find where it says what you mention. But obviously you are not understanding how this device works. In the computer field you understand that it is a digital field. True? Our link with the digital field is not assimilable because our scope is analog. In the case of audio it is the same tenor. In other words, if our ear is capable of hearing a sound, it must be transformed so that a device like the one you link "processes" it. The signals are converted from analog to digital. This is done with an ADC Digital Analog Converter. What this device does is transform the acoustic signals with a method called sampling . This sampling is done with different "speeds" that we call frequencies. The higher the sampling frequency, the higher the quality. The lower the sample rate, the lower the quality. As you can see there are different protocols. This device has several. All are different from each other depending on the standards of some laboratories that have registered their patents and that have remained as audio standards. That is why this device is DSP a https://es.wikipedia.org/wiki/Processador_digital_de_se%C3%B1ales Then do not confuse the sampling frequency of the DSP with the frequency or range of the audio that the ear can pick up. I suggest you read more about DSP, ADC and DAC.

Hello everyone and thank you for answering me, do not explain anything to me well, without wanting to be petulant, if I know something about dsp, dacs, that the low pass filter lets pass the frequencies that are below the cut, the high pass frets above the cut etc ... but I still have a lot to learn, my question is not the operation of the minidsp, specifically it is, why on the page I posted when asking my question in the section of "Real time adjustments of filters and multiple configurations" a couple of paragraphs below, it says literally: "But with this kind of flexibility you must also be careful. For example if you run your tweeter unprotected and turn off the low pass filter by mistake, it will be a very costly mistake" ... my question is why does this person say that if I am operating the tweeter and I have no protection (I imagine it refers to some capacitor or passive filter) and turn off the low pass filter that comes in the 4x10 minidsp by mistake I will damage my tweeter? I do not understand that, as I understand (and I know that it is) the active filter that is going to protect my tweeter is the high pass, (since this eliminates the frequencies below the cut, let's say if I cut to 7000 hz everything will happen above 7khz with a high pass) if I turn it off then if the frequencies below that cut that could surely damage my tweeter pass, I know that if I use passive filters there will be more security for my tweeters but I have read jbl designers on the lansing page ( something like that) that if my supertweeters jbl 2405 if I put passive filters their audio quality is broken and it is better to filter them actively, and since the minidsp brings integrated crossover I think to filter them with it, but when reading the review that I post them in English I It makes me wonder why a low pass filter protected my tweeter? and if I turn it off by mistake bye tweeter ... Unless as the partner romaci 2005 said, the page refers to a possible low pass filter placed at 21.5 kHz for example (since it is the limit of my tweeter) and so we would avoid getting more of those 21.5khz, and then now if, if I turn it off, the low pass filter may bust the tweeter, because there is nothing to stop or eliminate frequencies above 21.5khz . Could that mean maybe the reviewer? I know there are several tweeters that say they reach 20khz and in practice they decline strongly because of the 16khz. Perhaps these low-pass filters are aimed at them. You are the experts, please will it be so?