I can offer a few tips
1.)Dont use instrument cable for speaker cable.
WHY THEY’RE NOT INTERCHANGEABLE:
You shouldn’t plug your instrument/guitar into it’s amp using a speaker cable because guitars, specifically passive guitars, send out a very low level signal. This low level signal is very susceptible to noise induced from RFI/EMI from cell phone and radio towers, dimmers and florescent lights, electrical transformers, and other sources that are always around you. The shield around an instrument cable keeps most of these interferences from getting into your guitar signal. Because a speaker cable doesn’t have this shield, if you use it to plug your guitar in, you’ll generally get a lot of noise in the signal due to induced interference. You’re not going to hurt anything by using a speaker cable as an instrument cable, but you’re likely not going to get a noise free sound either.
You shouldn’t plug your speakers into your amplifier using an instrument cable because instrument cables don’t have low enough resistance to let speaker level voltages flow with ease. Essentially the amp would be trying to send all of its power down a small center conductor and a thin braided or foil shield! At low volumes you’ll likely not have any problems, but in the event you have a powerful amp and turn the volume up, you’ll likely hear slight distortion of the signal, the amp will have to work much harder and have less power to drive the speaker, and in some cases, could even start heating up the instrument cable to the point that it melts the jacket and creates an electrical short circuit! This could of course ruin your amplifier and/or your loudspeaker.
While many 1/4″ instrument and 1/4″ speaker cables look almost identical from the outside, under the hood they’re nothing alike. Don’t let the similar size, black jacket, and 1/4″ connectors fool you. Take care in looking at your cable to verify what it was made for and that you’re using it for the proper application. Cables will often say whether they are “instrument” or “speaker” cables in small white lettering along the jacket. Speaker cables are often slightly thicker in diameter than instrument cables. And if you really want to make sure you can unscrew the 1/4″ connector barrel and double check for yourself.
2.)Stereo is great, but many rock clubs (every club I ever played at) ran a mono mix to FOR (front of house). If you want to set it up stereo just for spiffness, you'll need to unbridge your amps and give each pair of speakers their own amp channel. Just for testing, do a simple setup just with your pa speakers that have drivers and tweeters. See if you like it better. This assumes your mixer is stereo of course
You can run your GNX in stereo it just takes up 2 channels in the mixer instead of 1. If you pan a channel to the middle, it's not in stereo, it's mono since your sending the same thing to both speakers.
*P.S. Your graphic is sorta upside down
And I can't really make out what's going on.
I''m sure somebody will though
I don't know what you mean about all the signal being on one cable? You have separate power amps for subs/mids/horns right? So each amp would be undbridged for stereo and two cables coming out going to each speaker, right?
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This post has been edited by Todd Simpson: Jun 26 2015, 11:15 PM
