Set up my disco rig to find that my amp crackles when the sounds turned up high. When the music is fairly quite i don't have this problem. I changed to use my back up amp and I had no problem at all.... does anyone recognise this problem?? Thanks
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Re: warrior amp seems to be crackling
You have a couple of things that might be going on. One the emitter resistor one the channel that is bad needs to be replaced or the bad channel itself need to be repalced. This does take soldering to fix it. You might need to take to a repair shop.
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You didn't say whether it was one or both channels. The word to describe the noise when using a turntable, back in the days, is called Acoustic Vibration. Your issue is not that. I can be an amplifier oscillating, for the high pitched sound and the crackling could be DC Offset*meaning a damaged amplifier) If you need further assistance, or would like to inquire about a repair, please visit my website at audioserviceclinic.com. Thank you.
Crackling is usally one or two things my guess would be bad grounding of the amp or bad connection with the jacks or plug it self try to make it crackle on purpose by jiggling the jacks see if it has any effect on the crackling try to narrow your possibilitys
I have a Korg C-15s and also experiencing loud crackling sounds when I turn it on. The problems seems to be either the sliding volume control or the amplifier itself. Honestly though, I believe the issue is the volume control. I opened my piano to get a closer look and attempted to clean the contacts on the volume. Unfortunately after cleaning the contacts, the crackling sounds became somewhat worse. After I turn the piano on, the volume control is generally rendered useless......volume set to low volume and the noise is quite loud and other times the volume control is set high and get very low volume crackling noise. No real consistency. The noise does diminish after a few minutes but so does the piano sounds to an inaudible level. There were a couple of instances where I turned it on and surprising enough, no no noise and perfect sound. For these reasons I believe the issue is within the volume control and not so much the amplifier. I have an electronics background and noticed that the volume control is very unique in design and is not something that can be substituted with another volume control from other sources.
My recommendation is to check the sound quality of the audio from the RCA L/R audio outs on rear of the piano by connecting to a stereo receiver. If it sounds fine you're in luck. If the crackling sound does not diminish after a few minutes like mine does, I would suggest disconnecting the internal speakers and using the audio out only. You can connect a pair of studio monitors or high quality computer speakers, preferably with a small subwoofer to deliver the full audio range and deeper tone of a real piano. I'm currently using a basic pair of Logitech computer speakers and is quite acceptable until I can afford a high quality set of monitors or relocate my piano closer to my high quality Yamaha receiver.
oh yes it can be fixed quite easily,...but you are best to bring it down to your local music store and have them do it, they'll be fair in price and your amp will be done right,....(no time for that breakin down stuff when your playin your guitar), thanks, cracklin joe
Id say you should go see a doctor. But for now id say that you should do your best to not listen to it for a while as it can affect hearing. try to use full on speakers if you can. On you tube there are a few Sub-Woofer sound tests you can do. Try playing one (low volume) and repeat. (not a song one)
http://www.teenbuzz.org/ also to hear which frequencies are out of range to you click here. ( click the second icon on the list further down the page)
If the sound FLUCTUATES up & down, try turning off the AutoVolume in the sound menu.
You didn't say if it's one or all speakers crackling.
Crackling is either a speaker or circuitry issue. Adjust the balance away from the speaker that crackles, if it stops, that speaker is probably "fried". If it still crackles, I'd turn off the speakers and run the sound thru a stereo for the quick, cheap fix.
My Samsung (10+ years old to be fair) crackles due to a circuit issue but if I SMACK the left side speaker (behind which is the sound board and side panel connectors) it stops for a while. Maddening. I think I broke it squeezing it into the furniture it's in, pressing on the protruding RCA plugs. Dumb design.
Sounds like you have a bad flyback Transformer...Crackling is high voltage leaking. I would quit turning it on and replace the main board in the set if you are good at soldering you can replace the flyback transformer but cost wise it is easier to replace main board. 20" might not even be worth the repair.