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Recent content by Gediminas

  1. Gediminas

    Help to reduce this schematic price (beginner)

    Thank You for simple explanation, I saw similar diagram before in other sites, but it was never explained well. This solved one my of the biggest doubts.
  2. Gediminas

    Help to reduce this schematic price (beginner)

    Thank You for great advise, Now I am planning for recalculating everything for first order filters, but the main reason I choose this kind in the first place was to keep my amplifier impedance drop below 8Ω, my reasoning was that this kind of filter cut frequency faster so less time signal will...
  3. Gediminas

    Help to reduce this schematic price (beginner)

    And what about inductors I found on ebay? They are not suitable for audio system?
  4. Gediminas

    Help to reduce this schematic price (beginner)

    Hello, please give me some advice in how to reduce price for this crossover I designed. First, a little background. I am completely new to electronics, but while ago I had little free time and started building sub-woofer, was not planning anything difficult, but during process I got more and...
  5. Gediminas

    Please help a newbie connect woofer

    Thank You very much, since only tomorrow I can get my hands on my set up again and try to wire everything together I keep studying info I can find. And I read that it is better to keep tweeter above 1kHz, is it true? Also I having trouble understanding Notch filter and its usage with tweeter...
  6. Gediminas

    Please help a newbie connect woofer

    Thank You for the help In this case I will try to keep as low as possible when just to be sure. I was planning to cut sub-woofer at 100 Hz and tweeter at 1000 Hz, but calculator only let me do cut at 800 Hz for tweeter when I choose sub-woofer value of 100. Any particular reason for this or...
  7. Gediminas

    Please help a newbie connect woofer

    I found 3 way crossover calculator (http://www.diyaudioandvideo.com/Calculator/ApcSpeakerCrossover/). It seems simple enough to use. Only question is what is 'bandpass gain' calculator gives me? I can't find answer anywhere. Should I try to keep low as possible or big as possible? Also please...
  8. Gediminas

    Please help a newbie connect woofer

    UPDATE: Today I tried to repeat test I perform yesterday, hoping to make some new observations. For this test I connected everything like this: : Results: According to my online calculator (http://www.learningaboutelectronics.com/Articles/Low-pass-filter-calculator.php#answer2) filter cutoff...
  9. Gediminas

    Please help a newbie connect woofer

    I did not get the question completely. You are talking about total impedance my amplifier will get from filter/speaker setup? I realize that filter have little impact on that. Or You are meaning to say that I need to use that resistance in formulas I am using for this filter? I am trying to...
  10. Gediminas

    Please help a newbie connect woofer

    Well, I used online calculator for calculating filter values, initial idea was to make sub-woofer cutoff at 100 Hz, but since store did not had resistor I needed (0.62Ω), I bought closest possible (1Ω). It raised cutoff frequency from 100 to around 159 Hz (according to online calculator). I...
  11. Gediminas

    Please help a newbie connect woofer

    So I tried to wire everything together. Here are the results: leds part works like charm, they shine even with pretty low volume. I'd call it success. As for the speakers part it more or less work, but it encountered problems and raised more question. First of all, electronic store did not have...
  12. Gediminas

    Please help a newbie connect woofer

    Thanks, I'll just do like You say then and don't have to be afraid that my amplifier going to burn after longer period of working. And in the future it's probably a good idea to buy amplifier with bigger impedance tolerance range, or try to combine different resistance speakers... As for...
  13. Gediminas

    Please help a newbie connect woofer

    Thank You for Your advice, I can only guess how boring is to teach beginner with no physic background since school ( I went to chemistry) but You still doing it, really appreciating it . As for my project, I feel like I need to recalculate my tuning to frequencies overlap little less and I am...
  14. Gediminas

    Please help a newbie connect woofer

    Thanks to You, I learned so much in few days and I feel that I'm getting closer to wiring part now. No problem, You helped anyway. While it would be convenient for this moment to get results, but I would rather learn to count them myself. Problem is that either I don't know how to look for...
  15. Gediminas

    Please help a newbie connect woofer

    I can't stress You enough how great help You are and how grateful I am. I can't get my hands on my speakers until tomorrow or day after tomorrow, so I don't know actual response frequency, but I tried to count theoretical values for all the components. For low pass and high pass filters I found...
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