Chris, it isn't actually a crossover, which would both roll off the low frequency driver above a certain frequency and the high frequency driver below that frequency(the "crossover"). The M3 uses only a high-pass filter on the tweeter with a capacitor to roll off the lows(and a resistor to pad down the efficiency to match the mid-woofer). The mid-woofer has no low-pass filter on it and rolls off the highs "naturally". Works well. By the way, congratulations on the new car.

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Enjoy the music, not the equipment.