Originally Posted by
Jdunk54nl
Both of those are, in my opinion, not good advice.
In other words, if you try to boost something, and it doesn't actually work (level doesn't increase as much as it should), don't boost it. I also generally don't boost a bunch on the low end of the speakers frequency or where distortion is already high in the speaker.
This also goes with, if you are cutting a bunch, then boost something, usually you are still overall cutting the response. But boost away, just don't clip any signal and cause distortion. Yes, I fully understand this
First this one:
"When EQing, most prefer to cut rather than to boost any particular frequency especially around the crossover".
Boosting is fine, cutting is fine. You just don't want to boost something that won't actually be boosted. Like a cancellation due to center console. I follow this rule
Second one:
"The main idea is to arrive at a relatively flat summed response in the crossover region instead of applying any EQ in that region".
The only way to do this is applying eq. As I said before, simply adding a crossover filter is eq'ing.
You do want the overall goal of a summed response to be hitting your target. Two speakers playing together sum to a 6db overall increase. So at the crossover region you want both speakers to be 6db down (Linkwitz Riley crossover does this by design). To keep phase as correct as possible you want a 24db/oct crossover slope.
All of this is acoustical crossovers, as in, what you measure using your microphone in your listening position. Whatever dsp settings it takes to do this does not matter, as long as you are still protecting the speaker with those settings. You don't want to set too low of crossovers to where you risk breaking the speaker etc.