Hi,
I have having trouble with working out which tweeter wire is positive and which is negative.
The two black wires are the negative for the Mid ranges and the two red wires are the positive. I have marked the blue tweeter wire as a positive but I am now second guessing myself as it is joined with the negative mid range wires. But to add confusion the other tweeter wire on the top left is black like the negative wire colourings. Can anyone help? These are out of a set of Paradigm 9SE mk2's I am refurbishing.
2 replies to this topic
#2
VanArn
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Posted 12 March 2012 - 07:10 PM
A few more photos would help in verifying the connections.This model is claimed to use a third order xover network and in general the tweeter would be connected bout of phase,so it would be find that the tweeter positive terminal going to the negative input connection.
#3
Nigel
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Posted 13 March 2012 - 08:45 AM
Depending on the configuration, sometimes the mid driver should be 180o outta phase.
Either way, if you are able to easily swap the leads at the tweeter or mid, then you can use the concept that at the crossover point (??) the two roll-off slopes should sum to flat(ish). So if one is out of phase then they subtract instead, which leaves a deep V in loudness around the xo point.
If you listen carefully for that frequency then usually you can pick it, as the difference is signif. Listen close to one speaker, not at the listening pos. Can take seconds to sort this.
Either way, if you are able to easily swap the leads at the tweeter or mid, then you can use the concept that at the crossover point (??) the two roll-off slopes should sum to flat(ish). So if one is out of phase then they subtract instead, which leaves a deep V in loudness around the xo point.
If you listen carefully for that frequency then usually you can pick it, as the difference is signif. Listen close to one speaker, not at the listening pos. Can take seconds to sort this.
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