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Can I make a crossover or buy one?

My son got some small B&W speakers for Christmas and their low end bottoms out around 40-50hz, and if my guess is right it's probably down at least 3db at that range. So I bought him a passive sub, which is nothing more than a 12" woofer in a box. What I need now is a crossover that both combines L&R channels for 100hz and below(or there abouts), but also provides a high-pass for 100hz and above for the B&W's. If I can just buy a unit that will do all that I would probably just fork out the bucks but I can't find one. Twenty years ago or so I went to an electronic trade school (while trying to find myself), but have forgotten just about all I learned. But if someone had a schematic I may be willing to try. So if you know of a brand/model that will accomplish this or have a design could you let me know?Thanks, Jim
jimmymaclite
jimmymaclite OP
7 posts
 
I've been racking my brain for 2 weeks..here you just ask, thanks!
audiopath
92 posts
 
Yo Jimmy,

You might want to consider the Parts Express subwoofer amp with built-in crossover. Go to:
http://www.partsexpress.com/pe/pshowdetl.cfm?&PartNumber=300-794&DID=7
It would require cutting a hole in the back of the enclosure and soldering a couple of wires to the speaker terminals but it should solve the problem.
mrderrick
292 posts
 
If you want to go active, check out Marchand. Make sure you read through what they have to offer. There are a lot of upgrades and different options. Everything is also sold in kit form if you are a DIYer. Don't see what you need? Give Phil a call. I have a full blown tube x-over by them and it is phenominal.
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