M-165x/XT 25 testing showing response of different designs - Lets see if I can remember what all these curves are : Yellow = tweeter response obviously Orange = woofer response with notch filter Light Purple = woofer response with no notch or zobel Pink = woofer response with zobel Dark Yellow = combined response with no notch or zobel on woofer Purple = combined response with notch Green = combined response with zobel

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