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1st November 2005, 11:57 AM
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diyAudio Member
Join Date: Jan 2003
Location: Sweden
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passive crossover for 2ohm load
I'm helping a friend out with his car audio. He has 2x4" mid and 2x1" tweeter per channel. All drivers are 4 ohm resulting in 2 ohm/channel. I used the formulas on carstereo.com to calculate 2nd order Linkwitz-Riley passive crossover at roughly 4kHz. When he plays the system sounds distorted and noisy and the poweramp protects almost instantly. When we just play with the mids directly connected to the amp (without the crossover) it works fine. Is there anything special I have missed when I calculated the crossover? I have never created a crossover for such low impedance before.
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