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Old 30th November 2003, 05:55 PM   #1
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Default I need help wiring a simple crossover

http://web.njit.edu/~cas1383/crossovers/

This is a web site of a simple crossover I understand every thing but the wiring can you please help
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Old 30th November 2003, 09:39 PM   #2
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OK, you have a "+" and a "-" coming out of the amplifier, and
you have a "+" and a "-" going into the speaker. The crossover
is in between. Assuming that the driver will be "in phase", then
the "-" from the amplifier goes to the "-" of the speaker.

If these are not marked as "+" and "-", then sometimes they
are red for "+", or some sort of dot on the "+" speaker terminal.

The crossover sits in between the amplifier and the speaker.

Since it's a high-pass filter, it will consist of the capacitor
placed from the "+" output of the amplifier to the "+" input
of the speaker. The inductor will be placed across the "+"
and "-" leads of the speaker.

If the speaker is to be wired out of phase, which is often the
case, simply reverse the "+" and "-" of the speaker connections.
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Old 30th November 2003, 09:48 PM   #3
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iI shold have been more specific when asking the questionbut that isn't my website and i know all the other steps but how to wire the whole thing i under stand what i can see but the wires are all the same color and when it goes out of the picture i don't know what wire is what and what wire goes where
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Old 30th November 2003, 09:54 PM   #4
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I should have checked this over before submiting the reply so im going to rewrite it


I should have been more specific when asking the question, but that isn't my website. I know all the other steps but how to wire the whole thing I don't understand. I can wire what I can see but the wires are all the same color and when it goes out of the picture I don't know what wire is what and what wire goes where

please help with the whole wiring
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Old 4th December 2003, 12:52 PM   #5
Jay is offline Jay  Indonesia
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Old 4th December 2003, 01:07 PM   #6
sreten is offline sreten  United Kingdom
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Location: Brighton UK
I'm sorry but modelling the drivers with 3.9 ohm resistors is just
plain wrong.

You need to take into account the inductance of the bass driver,
an average of typical values will be far better than no value at all.

The impedance peak of the tweeter also has to be considered,
as does any sensitivity differences between the drivers.

This is for in-car use.

For domestic speakers it gets even more complicated.

Sorry, but simply not worth building, it will not work as advertised.

/sreten.
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Old 6th December 2003, 03:03 PM   #7
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thanks for the drawing but if its not worth making then im not going to waste my time with it if anybody has a drawing of a simple crossover it would be very helpful

thanks
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