Soon as i turn on my QSC RMX2450 the clip light comes on for Ch 2
It has been an awesome amp in the past. This just started at the last gig.
I noticed Channel 2 started sounding crackly the last gig I used it at. Now Channel 1 still works fine, but Channel 2 hardly does anything and it sounds bad. The clip light for channel 2 is on soon as it powers up the amp.
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I've had QSC power amps with internal fuses in the AC power section, and I have seen the fuse holders separate from the board. These were the 2-piece (per fuse) clips that solder to the board and the fuse clips into them. I'm not sure if you are talking about a speaker, a power amp, or a powered speaker, but if it doesn't power up at all, it's probably in the AC Power Supply area.
Disconnect speakers. With NO input, if clip light remains on, take in for repair as there is an internal failure. If reducing the gain and loudness keeps the clip off, then you are probably driving the amp too hard. This is common problem when the user "thinks" they need it louder but the amp speaker combination will not deliver louder. At this point, both the amp and the speakers are at risk of permanent damage requiring repair.
You should NOT drive the amplifier into the clipping mode continuously. There is a possibility that you have fried your speakers or that they are the real problem. You haven't told us what you were driving, however this amp will deliver 450 Watts per side RMS at 8 ohms which means your speakers have to be rated at least that much RMS power for continuous. When speaker voice coils fry, they can wipe out amplifiers. Let us know what speakers you are using and how they are configured. This amp is going to be expensive to repair I can tell by looking at the schematic: Here is the schematic:
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This amp has circuits to boost the power supplies to the amps to handle the peaks. It is rather complex but the schematics are complete and have good explanations... some of the best I have seen. There are going to be a lot of destroyed components and great care has to be used after repair to "cold start" the unit to make sure nothing else is bad or it will blow up again. Most people do NOT have trouble with the QSC amps... so do tell me what speakers you are using and how they are configured so we can verify the design is correct. This amp is rated for 8 ohms so USUALLY only ONE speaker can be connected per side... and finding an 8 ohm speaker that can take 450 watts continuous RMS isn't easy. People fall for the advertising claiming "Peak" and "Program" power which are FAKE advertising... ONLY use continuous RMS power when sizing amps and speakers. There are MANY ways to cook out equipment... One is to boost the bass or the treble way up. Another is to NOT use balanced interconnect lines between mixers and your amps. Yet another is to NOT power ALL interconnected equipment from a single receptacle or power conditioning module. Please describe your setup further so I can help you more!
I am a musician myself (classic rock band) I too have a crown two Chanel amp , only difference is ours is a 3000. Well don!t feel bad. I had dropped mine more than once and your right, when you turn it on you hear two clicks, one for each side, those are relays that trigger the power to come on and like warm up. I dropped mine one time and both sides were not clicking at all, so I took it apart ( lid off, unplugged of course) located the relays which were pretty easy to find as they were the first switch from where the internal power plug comes in, I moved them around, got lucky, they got loose from when I dropped. Then happened again by a helper, and this time no help. Went to guitar center and they took unit and replaced them, about 40 bucks. That was a couple years ago. Point of my story, this problem seems as mine, and I believe it is going to be a loose or broken relay for that side chanel. Thanks mike, hope this helps.
i have a pyle pro 1000 watt max 2 channel mono and 2 channel stereo and when i get that thing loud the little red light cums on basically what i mean is that the amp on channel one is cooked i myself i wouldn't even use it y cause more damage
Hello pare ko. EP2500 is a pro amp, manufacturer says that. Notorious to me. Got 5 of these for repair. Clip is of course cause by too much signal from source. If the amp is still clipped or on protect even w/out signal in, time to open and do repairs inside. usually a MOSFET inside P50N06 (50V-60A) is kaput. or MJE15033G and MJE15032G. Now if blowing main Fuse, main txistor 2SA1943/2SC5200 maybe gone. Read carefully the setting of your dip switches setting at the back. This amp can drive 750 watts/ch@4 ohms.