20 Most Recent M-Audio Luna Professional Microphone Questions & Answers

Your mike requires a 48 volt phantom power supply which your preamp should be supplying. The most commonly overlooked problem is the cable. It must be wired for a balanced connection for phantom power to work correctly. 1=ground/shield, 2=hot(ve) and 3=cold(ve). None of these connections should be bridged to another and need to be kept separate to maintain a balanced connection. You will need to eliminate the preamp and mike cable as sources of the problem in order to determine if the mike is working correctly. You need to test this combination with a volt /ohm meter. If you don't know how to do this you should take it to the dealer you bought it from for testing or advice.

If you are sure of what you are doing then replace the capacitor and any other capacitors with a blown/distorted top.These capacitors are polarised capacitors and must be inserted/soldered correctly in place. The stripe on the capacitor is the negative lead.

How sure are you that't you tweeter and not a contact cable or, sunce they use cheap xhinese capacitors on the m-audio, just a capacitor has dead. Don't buy a tweeter, since they very often die and check the inputs , especially TRS amd rca and unscrew the the backplate and you'll notice that the cables and connectors used are cheapio. So it worth to check the pcb,s if you see broken caps. Which wouldn't surprise me , since their cheap once. And before buy another tweeter, first try it out on another small amplifier, to see if it works. Buying a new ine is the last fase, they ask high prices for a 10 dollar unit. Where did you buy it and how old is the unit? Greetings richard

The mics I have seen don't have a filter... but a lot of mixers do have a 100Hz mic input filter. Check the other equipment that you are using also.

Tweeter just may need to be replaced. Is all the sound coming only from the woofer?

hey shawn, try lowering the volumne level & see how the speakers react. www.tiger direct.com has new computer speakers,all different prices & different quality levels. from the best to the cheapest computer speakers.they carry all computer parts. 2 tb hard drives, $89.00for usb2 & usb 3 ports.

Check the power supply rails on the secondary side of the powertransformer. • Check the presence of AC outputs on the transformer secondary windings • Check the diodes and capacitor circuit • Check the regulator circuitsPost image so we can undestand better ( only if possible )and guide you accordingly.

Do you have a "circuit protection" light or sign?
If not, you most likely have a faulty power supply like so many others with newer electronics now days. It should be tested with voltmeter to see if power supply is putting out a constant voltage reading. If it isn't, it may have bad capacitors in the unit. Bad caps will cause tv not to power or stay on.

mp3 mp4 wav files should do the trick