Members The Chinese Posted May 24, 2010 Members Share Posted May 24, 2010 A lot of Cats have called out the PLX series Amps for being weak on Sub duty... I personally haven't had these issues, and always wondered why. I recently discovered that the Pioneer DJM Series Mixers are Pin 3 Hot- whereas the PLX Amps are Pin 2 Hot. I have no idea why the hell Pioneer made them Pin 3, but I'm wondering if there is a difference in the inpout stages that makes these type amps react differently to a pin 3 hot signal, other than the obvious fact that the speaker will move IN with a positive signal on Pin 2. Thoughts? Wondering if I shoudl make up a set of XLR's that are pin 2/Pin3 reversed for those little beasts. Todd A. Link to comment Share on other sites More sharing options...
Members agedhorse Posted May 24, 2010 Members Share Posted May 24, 2010 Nope, it's just a wiring and polarity convention. The problems come from mixing amps that are pin 2 hot with those that are pin 3 hot, it's exactly the same as reversing the output polarity. Switch either the input or output polarity to correct all to the same standard. Link to comment Share on other sites More sharing options...
Members The Chinese Posted May 24, 2010 Author Members Share Posted May 24, 2010 Nope, it's just a wiring and polarity convention. The problems come from mixing amps that are pin 2 hot with those that are pin 3 hot, it's exactly the same as reversing the output polarity. Switch either the input or output polarity to correct all to the same standard. Sure, but wouldn't there be a tangible impact by having the speaker go IN on it's first movement? I had no idea the Pioneer DJM's were pin 3, and never used a reverse cable or phase reverse... Since all my amps are pin2, my ashly gear is pin2, seems that I should phase reverse the input at the Ashly to ge thte speakers all going in the right "direction"... or are you sayign it just doesn't matter? T Link to comment Share on other sites More sharing options...
Members agedhorse Posted May 24, 2010 Members Share Posted May 24, 2010 Doesn't matter as long as everything does the same. Link to comment Share on other sites More sharing options...
Members dennis a Posted May 24, 2010 Members Share Posted May 24, 2010 The last I heard, Countryman 85 direct boxes are pin 3 hot...at one point in time they were changed to pin 2 hot but then changed back to avoid confusion. Of course my info could be incorrect. Dennis Link to comment Share on other sites More sharing options...
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