Question about AKG SolidTube Professional Microphone

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Lots of white noise and crackles, and intermittent problems.

I have had a serious issue for a long time with my AKG Solidtube microphone where I get tons of noise and crackles. It sounds like I'm standing out side and galeforce winds are blowing in my ear. This is definatelt a fault with and other equipment as I have used several other mics through the same channel, on the same desk and they have all been fine. I have even replaced the cable but the promlems still remain. Any ideas?

Kind Regards

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Check and make sure on the back of the power supply that it is set up for your local voltage(120/240)

Posted on Nov 28, 2008


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Define what you call the transformer. The microphone has a power supply in a separate enclosure. Usually the output has 7 pins to connect to the cable to the mic. First you need to verify that the cable is good. With a multimeter, check continuity of each end of each pin. If one pin has no connection, the replace the cabble and your problem will go away. Try this first, then if needed we'll talk about the power supply.
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When I turn on my SolidTube and let it warm up for a couple of minutes it sounds great. After like 20-30 minutes or so the volume fades. You can still hear it, but barely audible. I've tried put put in a...

I would be inclined check your +48v phantom power supply to make sure the correct voltage is coming out and to check your cable. Failing that, if you have changed the tube once I'd be inclined to contact AKG Directly via email to find a service center or get furthur advice.

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Jul 23, 2008 | AKG SolidTube Professional Microphone

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Problem With the Power Supply for AKG SolidTube

Well your obviously drawing too much current.
The other given is that it takes time. This means its a thermal problem. Temperature goes up and current goes up with it.

Look for plastic or cold solder joints. A plastic joint is dull and brittle also look for islands in the solder joint where the solder
is actually disconnected from the part.

Components like regulators also can go thermal.
Look for discoloration.
Get the unit to act up and carefully spray freeze mist at
various locations and you may agrivate it.

Problem may be in MIC and not SUPPLY.

Good Luck

Oct 27, 2007 | AKG SolidTube Professional Microphone

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