carter1010 Posted May 2, 2014 Report Share Posted May 2, 2014 Hello all, It is my understanding that you can use the SMD CC-1 and the SMD IM-SG in combination to determine the crossover frequency of a passive crossover. I was looking for information on how you use these two tools together to do that. Anyone have any idea? Thanks! Quote Link to comment Share on other sites More sharing options...
TonyD'Amore Posted May 2, 2014 Report Share Posted May 2, 2014 You could use these two tools together, or even just the IM-SG by itself. In audio the "crossover point" is what we call the frequency where the speaker is receiving half of the power it normally would. That being said lets do an example for a 4 ohm tweeter. Tools needed, IM-SG and a small 4 ohm resistor (1/2 watt or larger). Connect the resistor to the tweeter output of the passive crossover. If the crossover has jumpers for attenuation make sure they are set at -0dB. Connect the IM-SG to the input of the passive crossover, turn the freq all the way up to 20kHz. The impedance should read close to 4 ohms. Turn the frequency down until the impedance reads 8 ohms. This would be the crossover frequency. Let me know how it goes. Tony Quote Link to comment Share on other sites More sharing options...
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