How to connect PA mixer with built-in amp to feedbk dstryr unit?
I've got a YAMAHA EMX5000 amplified mixer (PA system), and a separate Behringer feedback destroyer FBQ2496. I'd like to know how to connect them together so that the feedback destroyer controls sound/feedback of the FOH speakers.
Should I connect from YAMAHA's 'ST-OUT' outputs to the Behringer's input, then from Behringher output back to YAMAHA's 'P.AMP IN' inputs? I just want some confirmation before I try it out, I don't want to cause any damage to the equipment. Thanks!
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Hi, When an two channel (stereo) amplifier is connected in bridge mode the polarity of one channel is reversed, for this example say channel B. An identical (mono) signal is applied to both channel inputs.
The output is now connected between the two channel +ve outputs. As channel A's output goes +ve , channel B's output goes -ve, thus doubling the output voltage.
On this Behringer powered mixer, the bridge switch simply connects the power amp section inputs, the required way.
The bridged output is wired to the B output between pins 1+ and 2+ of the 4 pole Speakon connector. (Because usually pins 1+ and 1- are used, stereo operation is unaffected.)
So.... If you connect a speaker from the A output alone then I would expect it to work, BUT if there is already a speaker connected from the bridge output, then what happens will depend on the amplifier design.
At best the A channel will see too smaller impedance, and hopefully shutdown.
This is a Behringer, it has digital (class D) power amps, and it does Not claim any amplifier protection !!!
If the powered mixer works in normal stereo, then it is probably OK.
If it then does Not work in bridge mode it is likely to be the connector wiring.
All the best.
You'll want to use the Stereo Out connections at the top right. You might need adapters to plug into whatever system you're trying to use. Also note that this mixer does not provide power, so the speakers you're using have to be self-powered or be driven by a separate amplifier. You would then plug the Stereo Out connections into the INPUTs of the amplifier.
ALL the speakers will either have to be POWERED or have external amplifiers. The mixer has NO power amps capable of driving speakers. When connecting, make sure that the mixer is powered by the same receptacle as the speakers or amps. Used balanced line for interconnection.
There are a number of configurations for a mixer like the 1832, the most common are PA system and Recording system.
There are Main output jacks which carry the mix as summed in the main faders. These in a PA system would feed the pa amplifiers which drive the house speaker system for the audience. These connectors are XLR 3 pin type on the rear, intended for professional pa amplifiers which use balanced +4dbv line input level. Amplifier which have 3 pin XLR connectors for input signals can accept that high level signal. For home style HiFi amplifiers, the signal level is nominally -10DBv and balanced or unbalanced signal lines with 1/4in diameter phone plugs which are connected to the mixer by way of a second set of Main output connectors which are 1/4in phone jacks. Use whichever amplifier input level your amp has.
If you are not using it as a main PA house mixer, but using it for recording, the main output connectors go to a 2 channel recorder or computer sound card recorder.
The power amp and your monitor speakers are connected to the connectors labeled "Control Room" (CTRL Rm). These output are useful for recording because the signal through the mixer can be monitored from several buses, Solo, main mix, selected by buttons provided. The buttons only affect the signal heard through the control room monitors, and not the main output which only sees the main mix so selecting "solo" does not interrupt the signal going to the recorder while the engineer in the control can be checking other signal paths through the board.
Home-theatre receivers don't have microphone inputs. If you want to use the receiver as an amplifier in PA system, you need to use some kind of mic pre-amp or a mixer with mic inputs. For PA mixer is needed anyway almost every time and all mixers have at least one mic input (with a pre-amp). Mixers have line-level output(s), which you can connect to the analog input of receiver. Using receiver as an amp in PA has advantage that you have 5 channel amp. When using high sensitive PA speakers (as oposed to less sensitive Hi-fi home speakers), you can get good performance with the power rating of receiver. You could even use 2 separate channels for subwoofers and 2 channels for satelite speakers - but for that you would need a receiver with 5.1 analog inputs and special device called crossover which would divide the output from mixer into low-frequency signal and high-frequency signal which you would then connect to the front and rear analog inputs. But with RX-V365 you can use only 2 channels with analog input
Hi, the speakers are unpowered, but that desk is also unpowered, so you need an amplifier in the circuit. This can either be in the desk, in the speaker, or a separate device, there are advantages to each.
first of all you must connect as follows. 1-preamp/mixer-------equalizer/reverb unit------amp-----speakers(keep all equalizer control to 0db). 2-check your cables for good connector no touching of any inner wire to chassis of any equipment. 3-go to radio shack and buy(ground-loop isolator). parts code(270-054)-----better to buy two pieces and connect it between your equipment.
Probably not the way to go about hooking it up. running speakers in series is not very practical with PA gear. The connections get messy to make as you need adaptor leads, and it is something that is seldom ever done.. When you use bridge mode it uses left and right channel together to drive the one output, combining the power. Best bet is to run the EMX5000 in stereo mode, and connect 1 speaker to
each channel. You may have been trying to reel in extra power from
using bridge mode, but the power amp stages in the EMX will only ever
be able to deliver the same MAX power whether in bridge or stereo. the best way to get maximum power and sound pressure levels from the unit is to hook TWO speaker boxes to each channel, you get the combined increase in efficiency of the extra speakers and run the output stages at 4 ohms to get absolutely all the power available If you have any questions about it, feel free to ask me, happy to talk to you further about it.
line out from mixer------to crossover in---------crossover out-------to amplifier line in-----------from amplifier out--------to loud speaker. ---from low output(low frequency)of crossover-----to line in in subwoofer.(mixer is ordinary mixer not powered mixer- and in case of powered mixer take care it is line out(0db---to4db)not amplifier out which you connect it to loudspeakers.