20 Most Recent Behringer EUROPOWER EP2500 Amplifier Questions & Answers

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I have a behringer 2500. both channels are distorted but not out. what would need to be replaced.

It seems to me that you have a bad transistor, T14 or T13 to be precise. T14 most certainly is in short circuit or its companion T13 (T14 is a small signal NPN transistor whereas T13 is a small signal PNP transistor). I just fixed one with the same symptoms as yours. You should be able to measure T14 collector voltage against ground (metal chassis) and the reading must be very close to +15VDC. Also, measure T14 emitter voltage to ground and the reading must be very close to -15VDC. If any of those voltages is compromised, you will not be powering the amplifier's operational amplifiers (U4, U5, U6) right. Check T14 and T13 with your multimeter and replace them as needed. Also, keep in mind that after replacing any of those transistors you will be required to readjust the BIAS current for your amplifier's drivers, which by the way, is a very easy task to accomplish. You know your BIAS current is misadjusted when your output transistors get really hot even under no signal conditions or when your amplifier distorts at very low volume levels or on high frequencies amplifying. To adjust the BIAS current for channel 1's driver transistors, wait until the amplifier has cooled down, locate and adjust VR3 until you read 80 mV across R2. To adjust BIAS current for channel 2's driver transistors, locate VR6 and adjust it until you read 80mV across R106. You need to wait until the amplifier cools down to set BIAS current right, If the output transistors' heat sinks get hot before reaching proper BIAS current adjustments, wait until they cool down to average room temperature and retake BIAS current adjustment. Once both channels BIAS currents have been readjusted, apply a thin coat of thick nail polish to the sides of VR3 and VR6 to keep vibration from misadjusting BIAS currents again... T14 goes down under severe BIAS currents shifting and it just makes me wonder as to why BEHRINGER does not apply a setting substance to VR3 and VR6 so they do not shift under sever vibration conditions, after all, almost any major amplifier manufacturer in the world does it. Good luck!
9/17/2021 9:46:59 AM • Behringer... • Answered on Sep 17, 2021
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Behringer EP2500 amplifier channel crackling noise

Got asilimar problemwit a behringer europower pmh 3000. my The Right channel began to crack up and drizzle now it seems completely dead. Changed the cables both of input and seapkers , still the problem stays the same. Any suggestion before brigning for a month at the repair shop? And get out with a 200-400$ bill ?
8/7/2021 5:13:27 AM • Behringer... • Answered on Aug 07, 2021
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Bad transistor

Hello,
The problem is not bad transistor.
the problem is dirt, try to clean dirt in the internal of the amplifier especially the front section that has a foam attached to it.
this should be done by removing the cover of the amplifier.
Also do not overload the amplifier, check its ampere, watt and ohms to ensure balance of the amplifier and the speaker....
9/25/2019 11:38:23 AM • Behringer... • Answered on Sep 25, 2019
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Behringer EP2500 drawing large current when powered up

If you are pulling the transistor that drives the final and the problem goes away, is the driver bad? Is the power supply a multi channel isolated unit? Could the channel for that side be bad?
6/19/2018 8:51:58 PM • Behringer... • Answered on Jun 19, 2018
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What are the Behringer EP2500's output stage transistors?

Faichild/Toshiba make the output transistors for the ep2500, part numbers 2SA1943 and the 2SC5200. Beware though there are a lot of dodgy fakes around on ebay. Profusion are excellent. Heres the links for them.
http://www.profusionplc.com/pro/gex/pcatdtl0?ipartno=2SA1943-O
http://www.profusionplc.com/pro/gex/pcatdtl0?ipartno=2SC5200-O
6/19/2018 8:46:06 PM • Behringer... • Answered on Jun 19, 2018
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Behringer EP2500 Clip light Channel 2 stays on & heatsink HOT!

There are so many components that can fail that troubleshooting this can be an expensive problem.

HINT: Put a 150 Watt light bulb in series with the power going into to limit current for/during troubleshooting.

Go through and compare the voltages on the teo channels. If power amp transistors have failed, likely the driver transistors also are gone.

Testing components in-circuit is very dificult. Resistors are pretty reliable and usually show damage by discoloration.

Furhter use before repairing MAY cause further damage.
6/19/2018 8:37:17 PM • Behringer... • Answered on Jun 19, 2018
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My EP2500 died, the capacitors are swollen on the

Unless you are a qualified audio service technician, you should refer repair of this unit to an authorized Behringer service depot. The capacitors you refer to can store lethal amounts of electrical charge. Also, Behringer service manuals and schematics are notoriously difficult to get.
3/30/2018 1:49:15 AM • Behringer... • Answered on Mar 30, 2018
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Red light on permanently one 1 channel, that

on beringer europower ep2500 if both clips lights is on chane d9 d10 d11 d12 and the two 220uf caps for the +15 and -15 voltage supply for the op-amps it a common fault alvan dawkins
6/5/2017 9:26:35 PM • Behringer... • Answered on Jun 05, 2017
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Connect speaker to amp

I suggest you download the manual at - http://www.behringer.com/assets/ep2500_p0183_m_en.pdf The answer to your question depends on how you want to run the unit and the manual gives very good directions.
12/22/2014 2:18:30 PM • Behringer... • Answered on Dec 22, 2014
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Europower Beringer PMH3000 power turns on then turn off?

when you turn on the AMP and the red light comes on give the amp 2 seconds and turn it back on the red light should turn off. That is what I do with the amps at my church and it works for me, I hope that this works for you too.
12/16/2014 11:36:52 PM • Behringer... • Answered on Dec 16, 2014
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Behringer pmp2000 europower no sound

Probably the power amp has arced and popped a lot of components.

When teh amps go usually the final pwer transistors, their drivers and sometimes even the power supply gets zapped.

Check the output of the preamp at the inserts for the final amp with headphones to see if anything is coming through.
3/2/2014 6:45:42 PM • Behringer... • Answered on Mar 02, 2014
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