active xover

well i finally did it. i'm using the active xover on my hu. right now i have the sub @ 50, mid 100>2.5k and high 4k all @ 24db/oct. it don't sound bad, but i def need to play w/ it. i know every install is different, but i was wondering...to all of you who are running an active setup, where is your xover points? so i can have an idea of at least where i should be starting, then tweek around w/ it. thanks.

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its better to xover the mid as low as you can go w/ the tweet, isn't it, like xover the tweet all the way down to 2k, if it'll go that low, so the mid doesn't have to play all that high?

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its better to xover the mid as low as you can go w/ the tweet, isn't it, like xover the tweet all the way down to 2k, if it'll go that low, so the mid doesn't have to play all that high?

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Actually you want your midrange to play the most frequencies possible. Of course it is going to depend on if your midrange can actually do that. I know Hybrid Audio makes a 3" driver that can play from 140-10000 and a 4" that can play from 100-17000 with the proper crossover. It is best to have the majority of what we hear come from 1 point source. I personally run my midbass from 40-140, midrange from 140-4k, and tweet from 4k up. The best thing about running active is that you can change crossover points and slopes easily to find what works best in your particular vehicle.

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well i finally did it. i'm using the active xover on my hu. right now i have the sub @ 50, mid 100>2.5k and high 4k all @ 24db/oct. it don't sound bad, but i def need to play w/ it. i know every install is different, but i was wondering...to all of you who are running an active setup, where is your xover points? so i can have an idea of at least where i should be starting, then tweek around w/ it. thanks.

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Yes and no. In a 3-way you have the luxury of running your midranges a bit higher. In a 2-way with a 7" driver not so much. The point where a 7" driver starts to beam, and off-axis response starts to degrade is much lower than a 4" or 3" midrange. A 7" driver will typically start to beam around 2k, so you definitely want your tweeter to start being able to take over by that point. That is, given the midbass is mounted in the doors. Mounted in kicks on-axis is a different story.
The argument about crossover points in the middle of the midrange frequencies is valid but moot when talking about a 2-way with a 6.5 or 7" mid. It's unavoidable at that point, and one of the reasons that an active crossover is highly desireable over a passive in that you can tune the system to where you can blend the mid and tweeter as well as can be expected, with a minimal of degradation at the crossover point.

So, you want your tweeter to take over as low as it can handle in a 2-way. Remember, with door mounted drivers, we're often talking about running a midbass at 60-80 degrees off-axis. That's asking a lot from any driver.

Here's a link. I've posted it on this site before, but I'm tired of trying to find it here as it got buried.

http://www.diymobileaudio.com/forum/showthread.php?t=7107

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