Hey all, I just got my x32 up and running last week. With the help if this forum I was able to fix my loud hum in my monitors. Now that its fixed, I can hear what I would discribe as a air leak sound in my mains. When I unplug it goes away. Old board did this but vary faintly, had to crank up the mains to hear it. I tried the isolation transforms that I bought for the monitors but that did not help. Thanks for your help thus far guys!
Behringer X32 has a air leak in the mains!
- Thread starter Jason Johnston
- Start date
Re: Behringer X32 has a air leak in the mains!
Jason. Where are you coming out of the console (monitor outputs or buss 15+16). Monitor outputs have been known to have a hiss issue...
Jason. Where are you coming out of the console (monitor outputs or buss 15+16). Monitor outputs have been known to have a hiss issue...
Re: Behringer X32 has a air leak in the mains!
Oh, that problem. Lower the air pressure using X32 Edit
On a more serious note, try muting the inputs one at a time. Does the hiss persist with everything muted? Don't forget to mute the efx returns as well.
Oh, that problem. Lower the air pressure using X32 Edit
On a more serious note, try muting the inputs one at a time. Does the hiss persist with everything muted? Don't forget to mute the efx returns as well.
Re: Behringer X32 has a air leak in the mains!
Thanks guys, I am using 15 and 16 for my mains. And I think I have muted everything, but not 100% about the fx returns. I will try that in the morning.
Thanks guys, I am using 15 and 16 for my mains. And I think I have muted everything, but not 100% about the fx returns. I will try that in the morning.
Re: Behringer X32 has a air leak in the mains!
Possibly from your effect returns on the aux in layer. either turn them down or assign them to DCAs and only have them up when you want to use them.
Possibly from your effect returns on the aux in layer. either turn them down or assign them to DCAs and only have them up when you want to use them.
Re: Behringer X32 has a air leak in the mains!
Dear Jason,
I would suggest that you methodically mute each channel, including all of your FX returns and see if you can identify the source.
We are back in on Tuesday and can assist further if needed.
Dear Jason,
I would suggest that you methodically mute each channel, including all of your FX returns and see if you can identify the source.
We are back in on Tuesday and can assist further if needed.
Re: Behringer X32 has a air leak in the mains!
It's simply called noise floor. I hear the same thing, especially at festivals with large format line array systems. But then again, this is when my $2800 console is sitting next to consoles that price out 10x what mine is. I understand my place in the food chain and just happily mix away knowing that at the end of the set, I can get paid and pack up my console in my trunk.
It's simply called noise floor. I hear the same thing, especially at festivals with large format line array systems. But then again, this is when my $2800 console is sitting next to consoles that price out 10x what mine is. I understand my place in the food chain and just happily mix away knowing that at the end of the set, I can get paid and pack up my console in my trunk.
Re: Behringer X32 has a air leak in the mains!
With my DSR112 tops over XLF subs, I can have the system up silly high and not hear any hiss from the system when everything is muted.
With my DSR112 tops over XLF subs, I can have the system up silly high and not hear any hiss from the system when everything is muted.
Re: Behringer X32 has a air leak in the mains!
I hear it too .....much more so on a pair of high-gain powered speakers, than on a pair with more moderate gain.
Muted every input every layer; muted Main Output too.
I measure 3 mV on LR 15 - 16 outs, muting doesn't matter....
Sure seems like noise floor to me too..
As I'm learning the mixer at low listening levels inside my house, I'm plugging the air leak
~:-D~:grin: with an inline pad to the speakers.
I hear it too .....much more so on a pair of high-gain powered speakers, than on a pair with more moderate gain.
Muted every input every layer; muted Main Output too.
I measure 3 mV on LR 15 - 16 outs, muting doesn't matter....
Sure seems like noise floor to me too..
As I'm learning the mixer at low listening levels inside my house, I'm plugging the air leak
~:-D~:grin: with an inline pad to the speakers.
Re: Behringer X32 has a air leak in the mains!
That's because it doesn't have an "air" knob like the old Mackie, that you could turn down... Maybe wear ear plugs.
JR
PS: I AM KIDDING.....
That's because it doesn't have an "air" knob like the old Mackie, that you could turn down... Maybe wear ear plugs.
JR
PS: I AM KIDDING.....
Re: Behringer X32 has a air leak in the mains!
Thanks guys. I muted everything and I still have the hiss. One suggestion I seen above was a inline pad? What is this?
Thanks guys. I muted everything and I still have the hiss. One suggestion I seen above was a inline pad? What is this?
Re: Behringer X32 has a air leak in the mains!
Jason, when you unplug the xlrs out of the mixer, does the pa still hiss?
Jason, when you unplug the xlrs out of the mixer, does the pa still hiss?
Re: Behringer X32 has a air leak in the mains!
Hi Jason, the pad I'm using is Audio Technica
AT8202....for relatively quiet listening. ..
Easy to pull out when not needed
Hi Jason, the pad I'm using is Audio Technica
AT8202....for relatively quiet listening. ..
Easy to pull out when not needed
Re: Behringer X32 has a air leak in the mains!
How about turning down the input gain to either the system processor or the powered speaker input? It seems you've got a metric shit load of again after the console.
How about turning down the input gain to either the system processor or the powered speaker input? It seems you've got a metric shit load of again after the console.
Re: Behringer X32 has a air leak in the mains!
Yep, would do either
But...No system processor, no gain control on powered speaker, and yes, gain out the ass....
speakers are full range meyer mts4a
Does the 3 mv (-50dbV) noise floor level, that I'm reading on the x32 mains, sound right to you ?
Thx Tim, Mark
Yep, would do either
But...No system processor, no gain control on powered speaker, and yes, gain out the ass....
speakers are full range meyer mts4a
Does the 3 mv (-50dbV) noise floor level, that I'm reading on the x32 mains, sound right to you ?
Thx Tim, Mark
Re: Behringer X32 has a air leak in the mains!
And for any analogue junkies who would insist that you wouldn't have this problem with analogue, I just had the same problem with my A&H GL2400 today. Ever since I added an extra [METRIC SHITTON OF GAIN] when I added subs and crossed over the tops today, I've been able to hear hiss from my main outs unless I mute them. Solution? lower my gain at the processor and lose a little bit of analogue headroom I wasn't using anyway.
And for any analogue junkies who would insist that you wouldn't have this problem with analogue, I just had the same problem with my A&H GL2400 today. Ever since I added an extra [METRIC SHITTON OF GAIN] when I added subs and crossed over the tops today, I've been able to hear hiss from my main outs unless I mute them. Solution? lower my gain at the processor and lose a little bit of analogue headroom I wasn't using anyway.
Re: Behringer X32 has a air leak in the mains!
No. The noise floor with no inputs feeding L/R should be on the order of -80dBu or better.
No. The noise floor with no inputs feeding L/R should be on the order of -80dBu or better.
Re: Behringer X32 has a air leak in the mains!
-50 dBV is the output noise of the Shure M267 with the master gain all the way up. That was barely state of the art 30 years ago.
-50 dBV is the output noise of the Shure M267 with the master gain all the way up. That was barely state of the art 30 years ago.
Re: Behringer X32 has a air leak in the mains!
Random thought. But this caught me one day and it took me a while to find. Do you have a talkback ON and assigned to your mains? The preamp for the external TB mic is pretty noisy.
Random thought. But this caught me one day and it took me a while to find. Do you have a talkback ON and assigned to your mains? The preamp for the external TB mic is pretty noisy.
Re: Behringer X32 has a air leak in the mains!
Thanks guys,
Checked the talkback, not that.
Maybe I'm making a mistake, and there is no validity in the Main Out voltage readings.
On either 7 or 8 main outs (Compact), when the desk is first powered up, XLR pins 2 & 3 read 0.13mV (-78dbV). When I raise Main fader to 0, voltage goes to just below 3mV (-50dbV)
Once the Main fader has been raised to 0, the voltage stays at 3mV no matter where the fader is.....even all the way down.
Either turning the desk off, or changing the sampling frequency in setup, returns voltage to 0.13mV (when the Main fader is all the way down)
More baffling:
1. the speaker hiss stays the same, whether first powered up at 0.13mV or at 3mV, as described above with main fader down.
2. the hiss increases plenty when raising the Main fader to 0, even while the voltage stays at 3mV no matter where the fader is....
maybe i'm clueless on how to read, or what to make of, balanced voltages.
Things i do know though:
XLR's unplugged at mixer = no hiss. Speakers plugged into my old analog mixer = no hiss.
Thanks for direction, mark
Thanks guys,
Checked the talkback, not that.
Maybe I'm making a mistake, and there is no validity in the Main Out voltage readings.
On either 7 or 8 main outs (Compact), when the desk is first powered up, XLR pins 2 & 3 read 0.13mV (-78dbV). When I raise Main fader to 0, voltage goes to just below 3mV (-50dbV)
Once the Main fader has been raised to 0, the voltage stays at 3mV no matter where the fader is.....even all the way down.
Either turning the desk off, or changing the sampling frequency in setup, returns voltage to 0.13mV (when the Main fader is all the way down)
More baffling:
1. the speaker hiss stays the same, whether first powered up at 0.13mV or at 3mV, as described above with main fader down.
2. the hiss increases plenty when raising the Main fader to 0, even while the voltage stays at 3mV no matter where the fader is....
maybe i'm clueless on how to read, or what to make of, balanced voltages.
Things i do know though:
XLR's unplugged at mixer = no hiss. Speakers plugged into my old analog mixer = no hiss.
Thanks for direction, mark