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are series resistors a worse choice?
are series resistors a worse choice?
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Old 3rd April 2011, 12:19 PM   #1
PreSapian is offline PreSapian
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Default are series resistors a worse choice?

hi, i needed a 6ohm in the passive c/o for the tweeter circuit in my speakers but i only had 3ohms available to me at the time so i went and wired two of them in series to make it the desired value. they're mills 12W resistors. i was wondering if i'll see a sonic improvement by replacing them with one 6ohm resistor. thanks.

Last edited by PreSapian; 3rd April 2011 at 12:28 PM.
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Old 3rd April 2011, 12:45 PM   #2
takayama69 is offline takayama69  Sweden
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What is worst... a six meter cable or two three meters cables? Scientifically ther might be some disadvantage... but IRL probably no one could pick the difference. Ive seen Troels Gravesen and other gurus put resistors in series to get exactly 11,2 ohms from 2 5,6 ohms resistors in high level speakers. Good luck!
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Old 3rd April 2011, 02:38 PM   #3
Arty is offline Arty
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if you keep asking, you will find someone with a sharp ear who will tell you that this approach will destroy all fidelity possible, and more than likely is the responsble for the extinction of dinosaurs.

but as the above post says, there is no possible way you could tell the difference.
in many cases a crossover can have multiple resistors in series to get the required value, capacitors in parallel to get the required capacitance, and so on.
I seen one that uses 4 resistors in series-paralell to get proper power handling.

so no problem with that approach.
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Old 3rd April 2011, 05:04 PM   #4
simon7000 is offline simon7000  United States
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Probably a better choice!
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Old 7th April 2011, 10:47 PM   #5
18Hurts is offline 18Hurts  United States
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If I'm building a crossover, I parallel resistors to increase power handling if I can't get the exact value. (why not?)

I would not worry about the additional solder connection--think of the hundreds and thousands of them on a D to A converter board!

The every so slight resistance increase will be negated as soon as the voice coil starts moving so slap that sucker in series and have a cold one.
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