how to turn on phantom power on behringer x32

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• General Discussions
• Mixing Techniques

Behringer Phantom Power, NOT working

• Thread starter Delta_Slider
• Start date Mar 4, 2006

Delta_Slider

• Mar 4, 2006

I bought a Behringer Eurorack MX802A used. Everything on it seems to work fine except the phantom power, I switch it on, the LED goes on and then fades and goes out. I have another pre-amp so I know its not the cables or the mic, etc. I have been told a couple times that Behringer had trouble with the power supplies and that is the problem. Seems odd to me since the rest of the board works. Will a new power supply fix the problem? Thanks,  

It's probably the 48V generator that is shut...most likely a capacitor that holds some charge. You could probably fix it yourself, providing you have a nice knowledge of electric circuits. The 48V is probably generated by: 1) A DC charge pump or 2) A separate switching supply Either circuit is quite simply and can be easily fixed. If the remaining of the board works well, the main power supply is surely good.  

Thanks for the info, I'll think twice before just ordering a new power supply. However, I am not too handy with electronics so I guess I will weigh the costs of having it fixed vs buying a new one.  

Delta_Slider said: Thanks for the info, I'll think twice before just ordering a new power supply. However, I am not too handy with electronics so I guess I will weigh the costs of having it fixed vs buying a new one. Click to expand...

travelin travis

you can get the schematic here: http://www.eserviceinfo.com/downloadsm/7446/Behringer_MX802.html if you can't fix it yourself, this would help someone that knows how.  

I had one like that, it was the switch itself on mine. Try flicking yours on with varying force, I bet there's a sweet spot where it'll turn on. Anyway, just break out the two wires going to the switch and wire them up to a replacement switch.  

• Mar 8, 2006

It WAS the switch! WooHoo! So for now I have it bypassed and if the main is on then the Phantom is on. Anybody see any reason why I couldn't leave it this way? I almost always need to use the phantom power anyway.  

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X32 Discussion

• Thread starter Rob Spence
• Start date May 20, 2012
• Junior Varsity
• Nov 12, 2015

Jan Duwe said: Dear glennfin, The four internal stereo FX1-4 returns are always available, and stereo FX slots 5-8 are supposed to be inserted into channels or buses. This is completely independent from the physical aux connectors. The X32 Rack rear panel AUX IN/OUT connectors can serve multiple purposes, such as Direct Outs or Inserts in channels or buses, or as additional in/out. They are meant as auxiliary line-level in- and outputs, in addition to the fully equipped Midas mic preamps on inputs 1...16, and have nothing to do with FX sends or returns. In your example, you may of course use say Aux Out #1 for sending out a bus signal or a direct out from an input channel and use that as a send to your Eventide effect, by adjusting the signal source on the Routing/Aux page for that connector. The return of the Eventide may be put on any sort of inputs you like, e.g. Aux In #1 (and #2 if it is stereo). This way your Aux 1-2 faders would be the FX Return faders for your Eventide. You may also run the Eventide return into a Mic/Line input 1-16, or feed its input from any one of the XLR Outputs 1-8 ... everything is configurable. The general in/out Routing is (mostly) structured in blocks of 8 channels for quick and easy connection of external devices, such as networked stageboxes or interface card signals, to the X32 dsp processing. Once connected to the dsp, any signal can be used in any channel (see channel configuration Source) and there is no such block-wise restriction of patching signals to channels or outputs. You may also consider downloading the free X32 EDIT application from our website, which allows you to familiarize yourself with the functionality. Hope that helps. Kind regards, Jan Click to expand...

Antoon van den Oetelaar

glennfin said: Do I need to connect/tie the - minus/cold side of the balanced input to ground? Click to expand...

• Nov 13, 2015

Re: X32 Discussion Thanks for the reply Antoon. I'm pretty sure 48v phantom is off by default. I will make sure phantom power is off on all inputs before I connect any line level devices. I won't be using any microphones, only line level so I don't see any reason to use input transformers since I'm not going to have phantom power turned on at all. Another solution since I'm using unbalanced sources would be to use a coupling capacitor in series with the hot lead... a .47uf 63v cap would do the trick and protect the connected device In case phantom power was engaged by accident.  

glennfin said: Another solution since I'm using unbalanced sources would be to use a coupling capacitor in series with the hot lead... a .47uf 63v cap would do the trick and protect the connected device In case phantom power was engaged by accident. Click to expand...

• Nov 14, 2015

Antoon van den Oetelaar said: It helps, I have done it in the past (bigger caps) but I have seen equipment dying by this. I would add an extra series resistor to limit the current, a extra resistor to ground will avoid that (piek/inrush) voltage can get to high. I made it myself to connect my X32 rack mic inputs to direct outputs of my EELA S130 mixer, this is for DJ use. (Mixer with P&G faders, VCA controlled, I need direct eq control for mixing... http://www.eela-audio.com/S130.html ) I think .47uF is with a -3dB of about 30Hz a bit to small. But higher values will give higher inrush values... Click to expand...

• Nov 15, 2015

brian maddox

glennfin said: Hi Jan; Just so I understand, I can use all the 1/4" rear inputs IN ADDITION to all 16 XLR inputs? at the same time?? Thanks Click to expand...

Tim McCulloch

Graduate student.

Tim McCulloch said: Yes. The 1/4" inputs are called "AUX" by Behringer, but they are always available. Note that the *AUX channel* (not the physical input) has no dynamics (gate, comp) and lacks insert points, input delay, etc. These can be overcome by selecting another input (for demonstration, let's say Ch 17), opening the Config tab, and using the Source block, select Aux 1. You have now assigned the Aux 1 physical connection to Channel 17 and have all the features of that channel available - dynamics, inserts, etc. You may or may not need them, but the flexibility is there to do so. Click to expand...

glennfin said: A Capacitor will only pass AC, in this application, as a coupling capacitor ("blocking capacitor"), There is no danger of the 48v DC damaging the output of a connected device as long as the voltage rating of the cap is high enough (63v is a common value). -3db roll off at 30hz is no big deal for the devices I have connected. Click to expand...

John Chiara

Re: X32 Discussion Actually 16 outputs and 15 inputs including the talkback/monitor section.  

John Chiara said: Hmm....2 X32's and at least 5racks in service and not one problem. What exactly are 'all its reliability problems?' Click to expand...

Robert Lofgren

• Nov 16, 2015

Re: X32 Discussion Hi Guys. Hope everyone is doing well. I am Alfred and our church bought x32 once it was first introduce in our region. Great mixer and we also bought S16 after couple months. Within this period we came across with funny situation and I had been trying to solve within my basic knowledge but it is keep repeating. I really hope someone here can help me and pardon my English if it is weak. Sorry to slot into this thread and if necessary to create a new one, please do let me know. 1)S16 sometimes not sync to X32. The LED red lead on the S16 will blink but after switch on and off then back to normal. I am worrying that not as user friendly to new sound crew. 2)Loud 'bang' from the monitors (buses send) but not FOH. It had been this way pass 2 years. Loud, means loud enough to scare the musician leaving the stage. Now we had tried to connect the P16 and this is rise another concern. Surely will be hazardous since they begin to like using headphone and the 'bang' signal will flow through it. It may come again, and may came few times a week, or after months. Even no one on the stage. Sometimes after switch on everything immediately. Sometimes after 1/2 hours. Sometimes after 2 hours services. 3)Low signal from P16. We just start connecting it last week. All things work great when connected the P16 direct to X32 but low signal once plug into S16. Is there anything I had missed out in the routing? I totally don't mind to change all cable if required to solve this issue to move forward for issue No.2 . It had definitely demotivated us when trying, and suspecting from amps to even instruments for the pass 2 years yet not able to solve. Please, please help. SOS> Best regards, Alfred  

Robert Lofgren said: When that capacitor is initially discharged and you hit it with 48v an initial spike of charging power will be created. If the capacitor is large enough the inrush current may kill your connected gear if you are unlucky. Click to expand...

Keith Forde

Alfred Wan said: Hi Guys. Hope everyone is doing well. I am Alfred and our church bought x32 once it was first introduce in our region. Great mixer and we also bought S16 after couple months. Within this period we came across with funny situation and I had been trying to solve within my basic knowledge but it is keep repeating. I really hope someone here can help me and pardon my English if it is weak. Sorry to slot into this thread and if necessary to create a new one, please do let me know. 1)S16 sometimes not sync to X32. The LED red lead on the S16 will blink but after switch on and off then back to normal. I am worrying that not as user friendly to new sound crew. 2)Loud 'bang' from the monitors (buses send) but not FOH. It had been this way pass 2 years. Loud, means loud enough to scare the musician leaving the stage. Now we had tried to connect the P16 and this is rise another concern. Surely will be hazardous since they begin to like using headphone and the 'bang' signal will flow through it. It may come again, and may came few times a week, or after months. Even no one on the stage. Sometimes after switch on everything immediately. Sometimes after 1/2 hours. Sometimes after 2 hours services. 3)Low signal from P16. We just start connecting it last week. All things work great when connected the P16 direct to X32 but low signal once plug into S16. Is there anything I had missed out in the routing? I totally don't mind to change all cable if required to solve this issue to move forward for issue No.2 . It had definitely demotivated us when trying, and suspecting from amps to even instruments for the pass 2 years yet not able to solve. Please, please help. SOS> Best regards, Alfred Click to expand...

Mitch Miller

glennfin said: I've yet to understand how to route mix busses to the physical aux outputs Click to expand...

and I don't know what the "Matrix" is... Click to expand...

glennfin said: Wow..... I've been studying xedit offline and I'm getting some of it... still a long way to go. It's not like I don't have any digital mixer experience... my previous live rig mixer was a Yamaha 01v96 and I have a pair of Yamaha 02R96's in my studio... still, the X32 rack is confusing at the moment. I want to use the mix buses as master levels for some of the aux sends but I've yet to understand how to route mix busses to the physical aux outputs and I don't know what the "Matrix" is... I'm working on it... I'm sure there will be many "ah-ha!" moments soon. (grin) Click to expand...

Tim McCulloch said: First Mitch is wrong about where you assign virtual outputs to physical outputs - that is done on the Routing page, "out 1-16" tab. Click to expand...

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