Making cross-overs is really simple stuff, once you get the basic idea. Chokes let only bass into a speaker. Capacitors only let treble into a speaker. The higher the value of the bass choke. the lower the bass. (opposite) (remember)! The higher the value of the treble capacitor, the lower the treble notes that it will let in. (also opposite) (easy to remember)! But you have to also experiment with your control resistors that are in series with the boom chokes and the tizz capacitor. The thump choke (5.6 value) is wired straight in series with the woofer. Then the boom choke (1.0 value) is in parallel with the thump choke. A control resistor (56 ohms) is in series with the boom choke. We don't want much boom in the woofer, most is in the full-range (for point-source sound). But no thump in full-range driver. With the full-range speaker, you have a basic music resistor (56 ohms) feeding all of the signal information but at lower than normal volume. It seems a high value resistor but the add-ons also contain some med and that adds to the basic music resistor. You then add tizz by having a tizz capacitor in parallel (about 3 mf value). And you know what to do if its too chuffy or has too much lower frequency treble (lower the value to 2 mf, as in my case). If it's too thin with too much higher frequency treble (increase to 4.7 mf). The same rule mentioned above! (remember). If it's a small bookshelf speaker, with hardly any bass, put a small resistor in series with the tizz ...
Wednesday, October 10, 2012
WHAT'S INSIDE MY POINT-SOURCE SPEAKERS?
WHAT'S INSIDE MY POINT-SOURCE SPEAKERS? Tube. Duration : 7.32 Mins.
Making cross-overs is really simple stuff, once you get the basic idea. Chokes let only bass into a speaker. Capacitors only let treble into a speaker. The higher the value of the bass choke. the lower the bass. (opposite) (remember)! The higher the value of the treble capacitor, the lower the treble notes that it will let in. (also opposite) (easy to remember)! But you have to also experiment with your control resistors that are in series with the boom chokes and the tizz capacitor. The thump choke (5.6 value) is wired straight in series with the woofer. Then the boom choke (1.0 value) is in parallel with the thump choke. A control resistor (56 ohms) is in series with the boom choke. We don't want much boom in the woofer, most is in the full-range (for point-source sound). But no thump in full-range driver. With the full-range speaker, you have a basic music resistor (56 ohms) feeding all of the signal information but at lower than normal volume. It seems a high value resistor but the add-ons also contain some med and that adds to the basic music resistor. You then add tizz by having a tizz capacitor in parallel (about 3 mf value). And you know what to do if its too chuffy or has too much lower frequency treble (lower the value to 2 mf, as in my case). If it's too thin with too much higher frequency treble (increase to 4.7 mf). The same rule mentioned above! (remember). If it's a small bookshelf speaker, with hardly any bass, put a small resistor in series with the tizz ...
Making cross-overs is really simple stuff, once you get the basic idea. Chokes let only bass into a speaker. Capacitors only let treble into a speaker. The higher the value of the bass choke. the lower the bass. (opposite) (remember)! The higher the value of the treble capacitor, the lower the treble notes that it will let in. (also opposite) (easy to remember)! But you have to also experiment with your control resistors that are in series with the boom chokes and the tizz capacitor. The thump choke (5.6 value) is wired straight in series with the woofer. Then the boom choke (1.0 value) is in parallel with the thump choke. A control resistor (56 ohms) is in series with the boom choke. We don't want much boom in the woofer, most is in the full-range (for point-source sound). But no thump in full-range driver. With the full-range speaker, you have a basic music resistor (56 ohms) feeding all of the signal information but at lower than normal volume. It seems a high value resistor but the add-ons also contain some med and that adds to the basic music resistor. You then add tizz by having a tizz capacitor in parallel (about 3 mf value). And you know what to do if its too chuffy or has too much lower frequency treble (lower the value to 2 mf, as in my case). If it's too thin with too much higher frequency treble (increase to 4.7 mf). The same rule mentioned above! (remember). If it's a small bookshelf speaker, with hardly any bass, put a small resistor in series with the tizz ...
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