Being small bookshelf speakers (that are complete), they have a resistor on the tizz capacitor on the full range driver (treble is tamed to match limited bass out-put in a small enclosure). Floor-standing speakers would probably have no tizz resistor on the full-range driver (owing to the increased bass out-put). The values of the components vary according to speaker/enclosure size and the individual drive units. My 4" Sharp full-range speakers are really chuffy, so the chuff resistor has to be unusually high value. The full-range drivers also have a boom choke in series with a resistor to make med-range mellow or shallow (warm or cool). You start off with an educated guess and tweak from there. You have to use "aligator clips" for your prototype cross-overs so you can easily change components as you listen (have fun). Never done it before? This will help: Resistors: Higher value evenly restricts the signal more and a lower value restricts the signal less. You have to have the impedance (resistance) of your speakers between 6 and 12 ohms (close to 8 ohms) if your amp is 8 ohms! Capacitors: Higher value = mure chuff or lower treble. Start with 5.6 mp for chuff. Lower value = more tizz or upper treble. Start with 3.3 mp for tizz. Easy! To hold back chuff, start with 15 ohm resistor on chuff capacitor (on tweeters for 2-ways). Higher value resistor means less chuff. On full range drivers omit the chuff capacitor and only have the chuff resistor (for that fluent med-range ...
POINT-SOURCE SPEAKER CROSS-OVER CONCEPT
Tuesday, January 15, 2013
POINT-SOURCE SPEAKER CROSS-OVER CONCEPT Tube. Duration : 9.50 Mins.
Being small bookshelf speakers (that are complete), they have a resistor on the tizz capacitor on the full range driver (treble is tamed to match limited bass out-put in a small enclosure). Floor-standing speakers would probably have no tizz resistor on the full-range driver (owing to the increased bass out-put). The values of the components vary according to speaker/enclosure size and the individual drive units. My 4" Sharp full-range speakers are really chuffy, so the chuff resistor has to be unusually high value. The full-range drivers also have a boom choke in series with a resistor to make med-range mellow or shallow (warm or cool). You start off with an educated guess and tweak from there. You have to use "aligator clips" for your prototype cross-overs so you can easily change components as you listen (have fun). Never done it before? This will help: Resistors: Higher value evenly restricts the signal more and a lower value restricts the signal less. You have to have the impedance (resistance) of your speakers between 6 and 12 ohms (close to 8 ohms) if your amp is 8 ohms! Capacitors: Higher value = mure chuff or lower treble. Start with 5.6 mp for chuff. Lower value = more tizz or upper treble. Start with 3.3 mp for tizz. Easy! To hold back chuff, start with 15 ohm resistor on chuff capacitor (on tweeters for 2-ways). Higher value resistor means less chuff. On full range drivers omit the chuff capacitor and only have the chuff resistor (for that fluent med-range ...
Being small bookshelf speakers (that are complete), they have a resistor on the tizz capacitor on the full range driver (treble is tamed to match limited bass out-put in a small enclosure). Floor-standing speakers would probably have no tizz resistor on the full-range driver (owing to the increased bass out-put). The values of the components vary according to speaker/enclosure size and the individual drive units. My 4" Sharp full-range speakers are really chuffy, so the chuff resistor has to be unusually high value. The full-range drivers also have a boom choke in series with a resistor to make med-range mellow or shallow (warm or cool). You start off with an educated guess and tweak from there. You have to use "aligator clips" for your prototype cross-overs so you can easily change components as you listen (have fun). Never done it before? This will help: Resistors: Higher value evenly restricts the signal more and a lower value restricts the signal less. You have to have the impedance (resistance) of your speakers between 6 and 12 ohms (close to 8 ohms) if your amp is 8 ohms! Capacitors: Higher value = mure chuff or lower treble. Start with 5.6 mp for chuff. Lower value = more tizz or upper treble. Start with 3.3 mp for tizz. Easy! To hold back chuff, start with 15 ohm resistor on chuff capacitor (on tweeters for 2-ways). Higher value resistor means less chuff. On full range drivers omit the chuff capacitor and only have the chuff resistor (for that fluent med-range ...
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