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Old 26th August 2005, 02:35 PM   #1
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Join Date: Apr 2002
Location: Cayman Islands
Default active crossover help


This is mostly a fullrange project hence its posting here.

I am going to try a active crossover for a project. Using Visaton B200 full range and then a 15" or two for the bass.
The candidates I have found are


Anyone have experience with either or suggest another?

I plan to crossover at ~100hz / 12dB

Any advise / suggestions?
This is my first attempt with an active crossover.


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Old 26th August 2005, 03:11 PM   #2
soongsc is offline soongsc  Taiwan
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Location: Taiwan
Design the low pass filter and subtract that low pass from the original source. This will let you use less components.
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Old 26th August 2005, 03:50 PM   #3
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Location: Llanddewi Brefi, NJ
you can get free filter design software from Texas Instruments -- and it works very nicely -- just enter "FilterPro" in their search engine.

in FilterPro you can adjust the "Q" of the cascaded filters -- so it is easy to design Linkwitz-Reilly filters -- probably not a bad idea to look at Linkwitz's website for his insights.
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Old 26th August 2005, 05:57 PM   #4
AJinFLA is offline AJinFLA  United States
Join Date: Feb 2005
Location: Tampa

if your XO range is around 100hz, why not use a dedicated subwoofer plate amp? It seems for the prices you are looking at you could get a XO with a amp built in! This guy has some pretty nice ones and you could get one with an LT specific to your setup.
His ServoSubs are some of the most musical subs I have ever heard. For the money they are unbeatable. I bought two! Just a thought.


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Old 27th August 2005, 12:43 AM   #5
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Join Date: Apr 2002
Location: Cayman Islands
Thanks guys,

I suppose a lp filter is easiest and since it was mentioned I do have a KG 5150 sub amp somewhere packed away that I had forgotten about. Time to go look for it.
That gives me some choices and saves some $

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