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Show Off Your Passive Crossover
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djtuffer View Drop Down
Young Croc
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Joined: 02 April 2006
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    Posted: 04 August 2012 at 2:20pm
This is my first passive crossover I have built from scratch.  I was quite pleased with it so I thought I would post a pic.
 
 
This is the response it gives. It's measured inside so isn't super accurate.
 
 
This is the biggest single component I have seen in a passive crossover in a pro audio cab.  It's a 12mh coil from an L2 Audio TX15 sub rated at 1000w.  I don't need them as I run the system active but It's an impressive size!
 
 
Show me yours!


Edited by djtuffer - 04 August 2012 at 2:22pm
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Points: 439 		Post Options Post Options   Thanks (0) Thanks(0)   Quote space-face Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2012 at 4:00pm
Nice work! Next time do it to NASA standards :-)

http://blog.makezine.com/2012/02/28/how-to-splice-wire-to-nasa-standards/
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Young Croc
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And don't use 3-core mains cable for speaker wire ;P
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djtuffer View Drop Down
Young Croc
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What's wrong with using mains cable?  It's 1.5mm stranded copper.  What's wrong with that?
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colint View Drop Down
Old Croc
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Originally posted by djtuffer djtuffer wrote:

What's wrong with using mains cable?  It's 1.5mm stranded copper.  What's wrong with that?

It could possibly overheat better to strip some 2.5 or 4mm speaker cable if you have it, The other thing make sure there's not the possibility of any of the cables touching. (the bare ends of the two blue wires seem a little close)
Other than that well done trying something that many people shy away from not many people even on here would attempt to build their own crossovers. Clap
Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!
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djtuffer View Drop Down
Young Croc
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1.5mm is rated for 15a which is 1800 watts at 8 ohms.  It should be fine in these short distances.  I agree about the blue cables being a little close.  Will sort that.
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colint View Drop Down
Old Croc
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Points: 5260 		Post Options Post Options   Thanks (0) Thanks(0)   Quote colint Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2012 at 6:24pm
Originally posted by djtuffer djtuffer wrote:

1.5mm is rated for 15a which is 1800 watts at 8 ohms.  It should be fine in these short distances.  I agree about the blue cables being a little close.  Will sort that.


Better to over engineer as far as I'm concerned.

To be honest most of the club sound installations in the 70's-80's were done on main's cable so (seen loads of them) including twin & earth so I wouldn't think it would be a major problem.
Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!
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boab View Drop Down
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Points: 485 		Post Options Post Options   Thanks (0) Thanks(0)   Quote boab Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2012 at 7:55pm
good effort.
Im sure you will see no problems with your wire just look at the capacitor leads.
Here is an x-over for one of my Hi-fi cabs (12" + 8" + Bullet)
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1.5mm stranded is going to be absolutely fine on a crossover board.  In any case it's far thicker than a lot of the component leads!  Obviously common sense needs to be applied and if you're building a high power 4 Ohm crossover for example the currents are going to be higher and you'll need thicker wire.
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Points: 11308 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2012 at 8:43pm
Yes indeed,you should see some of the shonky thin wire i have seen in some supposedly good-quality hifi speakers over the years.

Nice job for a first effort by the way tuffer.
Be seeing you.
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MarjanM View Drop Down
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:-)
Marjan Milosevic
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Smile
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