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<blockquote data-quote="GordonW" data-source="post: 2200676" data-attributes="member: 568981">You may need to do some trap filtering on the top of the mid, to get it to behave. Breakup modes starting at about 1500Hz... that&#039;s the &quot;hump&quot; you see in the curve there.I&#039;ve used the Peerless tweeter before... my take on crossover, would be to do a 12 dB/oct. passive between the tweeter and mid, at about 2500Hz, and an active crossover/seperate amps between the 8&quot; woofer and the mid/tweet. Use a low--electrical-Q lowpass on the midrange (ie, find the values for a standard 12 dB/oct. Linkwitz-Riley crossover, and try increasing the coil to 1.2 times its normal value, and DIVIDE the cap value by 1.2), and use a Zobel with a larger than normal cap and smaller than normal resistor (maybe change the cap to 25% bigger, and the resistor 20% lower numerical value). For the tweeter, I&#039;d use a standard Linkwitz-Riley alignment, on the highpass, maybe with the frequency increased from 2500 to 2700 Hz or so.The idea, is to AVOID a frequency response peak at 2KHz... those sound REALLY BAD. A small dip in that area (or nearby) is MUCH better than a peak. To that end, here&#039;s a diagram showing where I would start, if I had to just pick values and try a crossover (instead of my usual measurement with LMS/LEAP). If this didn&#039;t work, then you&#039;ll have to start trying trap filters or EQ&#039;ing down 2KHz...</blockquote>

[QUOTE="GordonW, post: 2200676, member: 568981"] You may need to do some trap filtering on the top of the mid, to get it to behave. Breakup modes starting at about 1500Hz... that's the "hump" you see in the curve there. I've used the Peerless tweeter before... my take on crossover, would be to do a 12 dB/oct. passive between the tweeter and mid, at about 2500Hz, and an active crossover/seperate amps between the 8" woofer and the mid/tweet. Use a low--electrical-Q lowpass on the midrange (ie, find the values for a standard 12 dB/oct. Linkwitz-Riley crossover, and try increasing the coil to 1.2 times its normal value, and DIVIDE the cap value by 1.2), and use a Zobel with a larger than normal cap and smaller than normal resistor (maybe change the cap to 25% bigger, and the resistor 20% lower numerical value). For the tweeter, I'd use a standard Linkwitz-Riley alignment, on the highpass, maybe with the frequency increased from 2500 to 2700 Hz or so. The idea, is to AVOID a frequency response peak at 2KHz... those sound REALLY BAD. A small dip in that area (or nearby) is MUCH better than a peak. To that end, here's a diagram showing where I would start, if I had to just pick values and try a crossover (instead of my usual measurement with LMS/LEAP). If this didn't work, then you'll have to start trying trap filters or EQ'ing down 2KHz... [/QUOTE]

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