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Multi-Way Conventional loudspeakers with crossovers

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Old 4th May 2005, 02:26 AM   #1
JiggaD369 is offline JiggaD369  United States
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Hi im building CAT5 speaker cables and im mostly likely gonna be installing a zobel network. my question is what resistor and cap do i need for my speakers?

here are the specs for them...

http://www.dmc-electronics.com/descr...mage%204T.html

also, when im installing the network, how and where do i install it?
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Old 4th May 2005, 02:50 AM   #2
Bill Fitzpatrick is offline Bill Fitzpatrick  United States
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I don't see the need for a zobel. What makes you think you need one?
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Old 4th May 2005, 03:56 AM   #3
JiggaD369 is offline JiggaD369  United States
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the cat5 cable im making is 27 pair of 23 awg wire and it has a running length of 10.5 feet.
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Old 4th May 2005, 05:05 AM   #4
Bill Fitzpatrick is offline Bill Fitzpatrick  United States
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and?
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Old 4th May 2005, 02:40 PM   #5
JiggaD369 is offline JiggaD369  United States
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alot of people have experienced their amp oscillating at 8 feet where mine is longer.
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Old 4th May 2005, 03:21 PM   #6
richie00boy is offline richie00boy  United Kingdom
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That's because the scrawny twisted pairs presents a capacitive load to the amp. To protect against that you need an inductor in the output of your amp, not a zobel network in parallel with it. Or just use normal beefy zip cord
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Old 4th May 2005, 04:51 PM   #7
JiggaD369 is offline JiggaD369  United States
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well i spent over two days makin this cable and im def using it. lol. what kind of inductor and how would i place it?
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Old 4th May 2005, 05:54 PM   #8
Bill Fitzpatrick is offline Bill Fitzpatrick  United States
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About 10 turns of 14ga. insulated electrical wire wound around a 10 ohm, 5 watt resistor should do the trick. Strip the wire leads and solder to the resistor. See illustration.

Connect one end of this unit to the + amp output and the + speaker wire to the other end.
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Old 4th May 2005, 09:18 PM   #9
JiggaD369 is offline JiggaD369  United States
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do i need buy a specific type of resistor like cermic, carbon film, etc?
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Old 5th May 2005, 12:27 AM   #10
Bill Fitzpatrick is offline Bill Fitzpatrick  United States
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A regular 5w wire wound "sand" (read ceramic cased) resistor would do for me. Others might say you need something better.
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