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Multi-Way Conventional loudspeakers with crossovers

Thermistor removal from crossover rebuild?
Thermistor removal from crossover rebuild?
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Old 23rd May 2020, 07:34 AM   #91
CliffR52 is offline CliffR52  Australia
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Originally Posted by AllenB View Post
With much added resistance the effect can vary with frequency where the impedance also varies. One way to reduce this effect is to attenuate using both series and parallel resistance.
That's very interesting.

So to overcome brightness or overly loud highs/mids would I add a resistor in series and listen for changes, but if brightness continues at given frequencies, add a similar value resistor in parallel.

Is that what you're instructing?

What ohm values would you incrementally try when doing adjustments?

thanks

Cliff
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Old 23rd May 2020, 08:49 AM   #92
AllenB is offline AllenB  Australia
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Thermistor removal from crossover rebuild?
Say you have an 8 ohm resistor in parallel with a speaker which is (nominally) 8 ohms as well. That's four ohms total. Put a four ohm resistor in series to make a total of 8 ohms again. Now the signal Voltage is divided and the speaker gets half.

From here if you reduce the series resistance you should increase the parallel resistance and vice versa to maintain a balance of 8 ohms (not that you must stay at 8 ohms, but it keeps the crossover frequency).
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