PA DJ Set Up - HELP!

[Enginearing]

It could prove to be an expensive learning curve for you if you continue to feed amplified speaker level into line level devices. You need to get your head around signal routing and the difference between line level signals and amplified speaker signal.

If your mixer has booth outputs a work around could be to use this output to drive the sub. Often amplifiers have input link(signal thru), which would give you a continuation of your line signal (though if your amp utilizes RCA chances are this is not the case).

EDIT: just looked at what you're using... Don't believe the "pro" designation in the model....
I would suggest getting a different amplifier so you can utilize a thru option. Speak to your local DJ supply store or whoever you got that subwoofer from.

[DJREC]

Originally Posted by Enginearing

It could prove to be an expensive learning curve for you if you continue to feed amplified speaker level into line level devices. You need to get your head around signal routing and the difference between line level signals and amplified speaker signal.

If your mixer has booth outputs a work around could be to use this output to drive the sub. Often amplifiers have input link(signal thru), which would give you a continuation of your line signal (though if your amp utilizes RCA chances are this is not the case).

Thank you for your response. I take from this, that what I was told is incorrect and it can do serious damage to my equipment.

Back of my Mixer


It would appear this has 2 channels. But it does not...

AKA Output 2 is worthless

Is a work around getting a Passive Subwoofer? Letting the amplifier that powers the speakers also power the sub?

How do I fix this KEEPING my mixer. Again, thank you so much for your help. It is greatly appreciated

[Enginearing]

Ideally you want the sub driven from a separate amplifier (utilizing a crossover). I think your best option is the get an amp with thru option.
If you had two subs and the right cables you could have the signal hit the line input of your sub first, then take the thru onto your amp.

OOI, What is the label on the 1/4" of your sub?( bit hard to see in that photo.)

[nedorama]

Please, read your manuals for your gear (or find online) before you blow up stuff.

If you can't figure it out, go back to the guy who sold you the sub and said you only needed a 1/4" cable.

Cheapest will be to get an analog crossover that will let you send your highs to the amplifier/speakers and the lows to the mono powered sub. DBX will do fine, although you'll need RCA-TRS adapter cables.

[Enginearing]

Just looked at the sub specs online. You are fine to use the 1/4" as a speaker input. Just make sure you use a speaker cable, not a guitar lead.
You will have an impedance mismatch (hence the lower level) but thats probably fine for what you are trying to achieve.
Like I said ideally you want a separate amp powering you sub, getting a second sub and utilizing the onboard amp and signal loop would be the best solutuion for now.

[DJREC]

Back of SUB


Back of seperate Amp that powers the PA

[Enginearing]

You could try linking one of the xlr inputs of the amp to the xlr loop of your sub (1*mic cable) if it doesn't work swap the sex and hit the input connector. A TRS to male XLR would also work, though this will all depend if your amp can loop off the RCA inputs.

[DJREC]

Originally Posted by Enginearing

You could try linking one of the xlr inputs of the amp to the xlr loop of your sub (1*mic cable) if it doesn't work swap the sex and hit the input connector. A TRS to male XLR would also work, though this will all depend if your amp can loop off the RCA inputs.

This would link both amplifiers correct?

[Enginearing]

Originally Posted by DJREC

This would link both amplifiers correct?

It would feed line signal to the amp in your sub thus utilizing the active sub feature and keep the loading on your main amp the same, rather than using one side of your main amp to drive the speaker in your sub (thus bypassing the onboard amp) and causing an impedance (and therefore level) imbalance.

This will only work if on your amp, the signal is looped from the RCA connector you are using to the combo connector currently not being utilized. You won't know if this is the case until you try it.

[DJREC]

Originally Posted by Enginearing

It would feed line signal to the amp in your sub thus utilizing the active sub feature and keep the loading on your main amp the same, rather than using one side of your main amp to drive the speaker in your sub (thus bypassing the onboard amp) and causing an impedance (and therefore level) imbalance.

This will only work if on your amp, the signal is looped from the RCA connector you are using to the combo connector currently not being utilized. You won't know if this is the case until you try it.

Awesome. Thank you so much for your help. I will get the needed cables and try. Will let you know how it works out..

Again, THANK YOU!!!

[DJREC]

I apologize for the lack of knowledge with this... But trying the TRS to Male XLR option, I am connecting the 1/4" to the back of the subwoofer (as already shown above) to the XLR on the other amplifier. Am I correct?

And the 1*Mic Cable Option.. Which is the "input connector"?

[Enginearing]

Like i said, this will only work if the RCA sockets on your amp loop across to the combo connectors (I have now way of confirming this, so the way to find out is to try it). I take it you now have a TRS to male XLR lead. Plug the TRS into the combo connector on your amp. Plug the mXLR into your sub.

To reiterate: the 1/4 inch on your sub is for speaker level input IE it bypasses the amp within your sub. The XLR is for line input IE signal into the sub's amp.