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Crown MX-4 crossovers


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#1 crownsound

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Posted 03 October 2005 - 10:45 PM

I have a two pairs of vintage crown MX-4 crossovers, which are stellar sounding units, but I am wondering if they could be modified to have a total of +20db of input gain, instead of +10db?

#2 DGlass

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Posted 04 October 2005 - 03:28 PM

It is what it is.  sad.gif  We don't have a Service Bullitin or Tech Note that would describe how to do such a mod, if it were possible.

There are a few original service manuals left in out parts department with schematics if you would like to try a mod on your own. biggrin.gif

#3 crownsound

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Posted 04 October 2005 - 06:13 PM

QUOTE(DGlass @ Oct 4 2005, 03:28 PM)
It is what it is.  sad.gif  We don't have a Service Bullitin or Tech Note that would describe how to do such a mod, if it were possible.

There are a few original service manuals left in out parts department with schematics if you would like to try a mod on your own. biggrin.gif
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OK, thank you Mr. Glass. Now I can see the thread. I will call Crown directly, and order the service manual! I will then have a serious technician look at it and tell me if it can be done! FWIW, one pair of my MX-4,s were modified years ago by Walter Boho, he changed the slopes, 12db/octave on sub and LF outs! Works very well, I might add!

Thank you.