Question about Behringer PMP4000/B212XL Mains & Monitors PA Package
I have used this system for 6 months and at the last show I lost the low end on the monitors.I use an old peavey monitor 300 head to drive the stage monitors and this has always worked fine. About 3 hours into my last show I lost the low end on my monitors. The peavey head seems to be working fine. And also the behringer seems ok.Of course I haven`t pushed them for hours like at a show.Any idea what would cause this.The signal to the mains was fine just the monitors.
Posted by Anonymous on
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Posted on Jan 02, 2017
If you only have powered speakers for both mains and monitors, you will NOT use the Speakon outputs on the back.
You will connect USING BALANCED TRS audio cables from the MAIN L and R jacks on the top of the unit to your powered main speakers and also connect the monitor speakers by TRS balanced connections to the MON1 and MON2 1/4 inch jacks on the top deck of the unit.
POWER ALL the speakers AND the mixer from the same receptacle or power source/conditioner.
This may mean running an extension cord alongside your audio snake from the stage. Failure to do do this can cause damage due to exceeding the common mode noise (ground bounce) of different power sources.
Leave the speaker slide switch in the Main L/R.
Adjust the rotary knobs for Mon1 and MON2 for each channel to proportion each to the monitor "mixes" which you will control overall with the MON1 and MON2 sliders.
You will use the MAIN slider to control the mains level.
To set the trims for each channel, push the PFL so only that LED illuminate red... then at max inout level for the channel, use the LED bar graph on the right side so it is just a little below the clip level where the top LED's of the bar graph do not illuminate.
Posted on Dec 10, 2010
SOURCE: When I hook up my
Please read my tip on fixya regarding a HAZARD of PMP mixers when using Speakon to 1/4 inch speaker cables. Essentially, the barrel of the 1/4 inch on A channel is the "hot" and one had better never let it touch a grounded point.
Now to your problem...You may have to run the MAIN sliders near the unity setting (zero Db).
It is important to set the trims correctely. For each of the inout channels, push the PFL button for the channel down and set the trim control so LED display is just below the clipping point at maximum input for the channel.
Ideally you would like the channel sliders to be in the vicinity of unity gain when system is balanced. Running the sliders way down results in a poor signal to noise ratio. Next you adjust the channel monitor knobs to set the monitor mix. These should be about 12 o'clock if possible to get decent signal to noise ratio.
For the MON/Mon1 mode, do NOT use the "Surround" simulator OR the "Speaker processor" ... make sure those swithces are off. You will probably want to PAN the channels fully to the MAIN side "B" which MAY be the reason your level seems low.
Remember the individual channels are about 400 Watts and 600 peak. Frankly myself I prefer to use both MAIN channels to the main speakers and use an external amp for the monitors OR use powered monitors for monitor use.
Posted on Jan 03, 2011
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SOURCE: I have a Behringer PMP
Bridge mode you use chan B (left connector on the back) using a SPECIALLY wired Speakon. The impedance of a speaker connected as such CANNOT be LESS than 8 ohms.
In the Main/Mon mode, the two amplifiers are separated in function. The monitor knobs for EACH channel input control the mix sent to Channel A which is for the monitor speakers. The Mon1 controls the level sent to Output A for the monitor speakers. Mon2 fader is NOT used.
The individual channel faders control the main mix and the Main fader controls the level sent to Output B which goes to the main speakers.
Posted on Apr 02, 2011
The power amp INSERT's are NOT intended to be used as inputs for the power amp but are for external effects units. The TIP of the jack plugged in here receives the signal from the preamp section and the inout of the power amp is taken from the RING of this threee conductor jack. If you want to use one of the power amps to run monitor speakers with no less than 4 ohms combine, you can use the built in Mon mode without any additional cables. You will set the mono/mon positon (center) and use the mo1 slider to control the output from the amp side for the mon speakers. The other amp then is used for the main speakers.
Posted on Nov 06, 2011
Try plugging in a set of headphones into each of the mon left and right. If the monitor sliders are up AND the channel monitor knobs are up you should be able to hear in ONE SIDE only of the headphones. If not, then you may have failed to power your monitor amp or speakers from the SAME receptacle as the mixer and this can result in ground bouncein building wiring that will blow out the driver chips for the mon signals.
Posted on Nov 06, 2011
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