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David Posted on Jan 28, 2019
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Behringer 1680s putting in bridge mode as I want to increase output I connect with (B) output and I am putting a speakon splitter in (B) and running 4 200w speakers I need to know is this safe

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Steve Pack

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  • Behringer Master 7,128 Answers
  • Posted on Jan 28, 2019
Steve Pack
Behringer Master
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Joined: Oct 15, 2013
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As long as you watch the impedance, the unit is spec'ed with 8 ohms. The power rating of a speaker is only the speaker. You could put a 500 watt speaker, r a 20 watt speaker on a 20 watt amp, it will not make any difference. If the speakers are 8 ohms the the impedance could be range from 32 ohms or 2 ohms, depending on the arrangement.

5 Related Answers

Anonymous

  • 3130 Answers
  • Posted on Mar 27, 2007

SOURCE: hooking up 2 speakers to 1 speakon output

Power Output (1 kHz*) Stereo Bridge-Mono 8 Ohm 4 Ohm 8 Ohm XLS 802 500W 800W 1600W XLS 602 380W 600W 1200W XLS 402 300W 450W 900W XLS 202 200W 300W 600W *1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.5% THD. It depends on the impedence of the speakers. Carfull as you could burn up this amp if you exceed the resistance rating on it. Go here on all of the specs of this model of crown amps. http://www.crownaudio.com/amp_htm/xlsspec.htm Good Luck

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Anonymous

  • 19 Answers
  • Posted on Oct 03, 2008

SOURCE: behringer ep1500 versus behringer eurolive b215 X 2- pa speakers.

The Amplifier will have wierd, notched, circular speakon cable connectors on the back, two, one for main left and one for main right. Press the button in on your speakon cable connector and twist it and lock it into place on the amplifer for right and left attachments, then do the same to your speakers.

Hopefully this helps.

Michael Lazar
http://www.AudioholicBlog.com/

Fred Yearian

  • 5603 Answers
  • Posted on May 31, 2010

SOURCE: Behringer B1800 subwoofer quits few times and then

Check the internal wiring. There may be a loose connnection and this is VERY hazardous to you amp !!!

These may also have a self reseting fuse and that MAY be damaged.

You should discover the problem when you open up the unit.

Darren Stagg

  • 61 Answers
  • Posted on Aug 27, 2012

SOURCE: Monitors not audible with Behringer 1680S

Assuming you're trying to power the monitors from this unit as well as the mains.....Confirm that the amp switch is in the middle position which splits the internal amps....one for main and one for monitors. Output A would power the monitors.... B would power the mains.

Gavin Holmes-Wilson

  • 35 Answers
  • Posted on Apr 07, 2014

SOURCE: No audio from main speakon outputs A and B

Hi, I think in most amps switching to bridge mode simply means the amp supplies its total power through the left channel only. It's the best way to use all of your amp's power but nothing comes out of the right channel. Having speakers connected to both channels would simply mean that only the Left channel works, it would not blow it. Some amps have the speakers wired to binding posts and this varies according to whether you want mono, stereo or bridged. I can't help with the power board sorry

Testimonial: "Thanks Gavin, I think ive diagnosed it wrong, ive power to the desk but the FX processor keeps flashing on and off, theres sound from all outputs other than the main outs A and B, so im guessing its the PSU..."

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0helpful
1answer

Can I connect my Behringer PMP 1680s on my Canon 80D's mic input? I would like to use the sounds from my 1680s as soubds for my video recording on my Camera. Thanks alot.

I wouldn't recommend it, as the microphone input is a low level signal, whereas the output of your Behringer is a much higher level signal. You would have to attenuate the signal from the Behringer before connecting it to the microphone input.
0helpful
1answer

Accidently had peaker connect to A side while in bridge mode wud mixer be damaged

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.
0helpful
1answer

Hi i have 2x ev sx300 speakers (speakon) and 2x peavey es 315 (1/4 jack) can i daisy chain the ev's from channel a and the peavey's from channel B (all speakers are 8 ohm). Also should speakon...

Yes, you can put two 8 ohm speakers daisy chain per side MAX. The Speakon should have ONLY two wires on the +1 and -1 terminals unless you are using bridged mode which is NOT applicable in your configuration of speakers. Also be careful is you use any 1/4 inch speaker plugs in the sytem as the SLEEVE, not the TIP of channel A is the "hot" lead... get this to ground someplace and goodbye amp.
2helpful
1answer

How do you switch the behringer 3000 to bridged mode,what settings do you use to get 1200 watts out of it.

Well... you probably won't like this, but here is some info: In bridged mode, a different Speakon to speaker cable is required from only the B... it is wired differently and you can only use one of the plugs. The speaker or speaker system CANNOT be less than 8 ohms in bridged mode... this precludes using speakers in parallel or multiple speakers that are less than 16 ohm impedance... such speakers are NOT commonly available as most are either 4 or 8 ohm. There is a slide switch for bridged mode on the face of the mixer. Next thing you won't like... The 1200 Watts specification is PEAK power, NOT RMS... You can get 400 watts RMS per side USING 4 ohm speakers. If you use 8 ohm speakers, each of those will get 200 watts. I use this mixer myself and ALSO repair them. The voltage swing at the outputs is about +/-60 volts MAX (peak). This is about 40 volts RMS by the time the circuit LOSSES are taken into account. Across a 4 ohm speaker you get 10 amps times the 40 volts or 400 watts. Across an 8 ohm you get 5 amps or 200 watts. The voltage rails in the switching amp are +/-70 volts DC so these are reasonable values. Bridged mode just uses both sides of the amp driven in opposite directions for higher voltage out BUT you have to use no less than a single 8 ohm speaker so there is NO advantage to bridged mode power wise. IF YOU NEED more power, use extra speakers from an additonal amp driven by the 1/4 TRS mains output jacks OR use additonal POWERED speakers driven from the same jacks. Please read my tip about the hazard regarding the SLEEVE of the cahnnel A cable when using Speakon to 1/4 plug cables being the HOT and the tip being the cold for channel A. Ground the sleeve accidentally and goodbye channel A amp...
0helpful
1answer

I have a Behringer PMP 6000 that I just bought. With the power amp switch in Main L/Main R it works fine, but if I switch it to Main/Mon, only the Mon works, nothing from the Main. Bridge mode doesn't...

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.
0helpful
1answer

We just got a PMP6000 and this has to be the worst manual ever written. Not a word about bridge mode except that it has one. Do I have to rewire a speaker cable or what? Which fader would control the...

Yes, in bridge mode you will wire ONE Speakon that will have the two speaker wires connected to pins "1+" and "2+". You do NOT need the manual to do this, the info is right on the back of the PMP6000 itself. You will plug that Speakon into channel "B".

PLEASE note that you CANNOT go below 8 ohm speaker impedance. If your speakers are 4 ohm you MUST connect two in SERIES which requires special cables and the speakers MUST be identical. You can connect TWO 16 ohm speakers in parallel by daisy chaining, however 16 ohm speakers are NOT very common. With 8 ohm speakers you can connect EXACTLY one in bridged mode UNLESS you connect four of them in series-parallel which requires special cables and great care. Believe me you do NOT want to have an accident with this amp as repairing is extensive.

Lastly, put the speaker configuration switch down to the bridged mode.

This is how bridged mode works: Sliding the switch down basically configures the two power amps in monaural and one amp is inverted so there outputs are out of phase by 180 degrees effectively doubling the voltage.

Remember that BOTH wires in bridged mode are HOT and grounding one while amp is on will likely blow out one side or more.
0helpful
1answer

I have a pmp 3000 and a pmp 6000. what is the best wast to run out of the boards to the speakers? and is it better to run in mono?

No preference, just use mode that fits your venue. As far as system safety I would run in Stereo A/B rather than bridged mode.

Now please read my tip about PMP units on Fixya regarding a hazard if you convert the Speakon outputs at some point to 1/4 inch plugs. If you do this, please note that the SLEEVE, not the tip on channel A is HOT to ground and shorting this to ground will often fry channel A. Channel "B" the tip is the hot speaker lead. Thsi is done by Behringer to facilitate switching to bridged mode.
0helpful
1answer

New to the mixer world. i have a dicontinued pmp5000. can't get the bridge mode to work

You require a special cable with the Speakon copnnector wired a special way. Refer to your user manual for the correct pin connections to use bridged mode and then put the slide switch in the position closest to the effects display.

Refer to figure 4.6 on page 10 and figure 4.7 showing the connection for bridge mode.

NOTE: you cannot go below 8 ohm speaker on the bridge mode... that USUALLY means a singl speaker of 8 ohms... you CANNOT parallel two 8 ohm speakers.

The single speaker cable will plug into the "B" output connector. Remember bothe the barrel and the tip of the connector if using 1/4 inch plugs is HOT and grounding either inadvertently will fry the amp.
4helpful
1answer

We are having problems with a Behringer PMP5000 board. We have the switch setting on Mon1/Mono. We can get sound out of the monitor output, but the mono output is almost silent. Do you have suggestions...

It is NOT clear what configuration you have set up and what you consider the MONO output is, whether it is the power amp MONO side output or the line level MONO 1/4 inch jack on the top of the unit (this jack is NOT speaker output). If you can run normal stereo speakers using both sides of the power amp in the AB mode, the problems you are having is pilot error.

REMEMBER the main out 1/4 inch jacks are BALANCED TRS jacks... DO NOT put mono plugs into these.

A WARNING: If you use Speakon to 1/4 inch speaker cables, remember that the BARREL of side A is HOT, not the tip!!! You can fry the amp if you inadvertently ground that barrel someplace. (Side B has the barrel grounded) This information is NOT readily available in the manual and results in many a blown amp. They do this to implement the "Bridged" mode easily.

I have schematics and can unravel most any problem you are having.
0helpful
2answers

Just wanted to know what switches ( which number's ) i push across on the back of my amp to bridge it so that i can get the full 2000 watts out of one channel..... my owners manual is missing so i cant...

just get positive terminal of the right channel and the positive terminal of the left channel. this is were u hooked up ur speaker. and thats is thats the bridge connection. u just mixed the L. & R. output of ur amp.
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