Scan-Speak 21W/8554 Midrange Digitally Filtered to LR4 @ 100Hz & 1440Hz
In the top frequency response window, the yellow curve is magnitude correction required to cause the driver original response (light red) to follow the purple target curve. Note how closely the corrected phase (bright green) follows the purple phase curve.
SEAS W22EX001 Midrange Digitally Filtered to LR4 @ 100Hz & 1440Hz
In the top frequency response window, there is no obvious 5kHz notch filter showing in the yellow magnitude correction. The yellow curve does roll off faster than the purple target curve above 3kHz.
Note in the time domain window (bottom), the ringing in the original SEAS driver. The red corrected impulse response shows no ringing.
06/27/02