AKG C414 XLS pulsating pop noize

[saint gillis]

Same issue for me with real 48V

 

[TLK]

Open up either end of a mic cable to access the solder pins. With mic plugged in using that test cable, that will place the load of the mic unto mixer / preamp's source. Use a DC volt meter to measure between pin 1 and both 2 / 3. If it's 48 volts DC + / - a volt or two, that would settle if there is a voltage supply issue.

 

[Edek]

Open up either end of a mic cable to access the solder pins. With mic plugged in using that test cable, that will place the load of the mic unto mixer / preamp's source. Use a DC volt meter to measure between pin 1 and both 2 / 3. If it's 48 volts DC + / - a volt or two, that would settle if there is a voltage supply issue.

Mine, with mic plugged reads about 35.6V~36V, without mic plugged, phantom power reads about 47.8V

 

[pucho812]

pulsating pop noise, I wonder if a capacitor is in backwards?

 

[saint gillis]

pulsating pop noise, I wonder if a capacitor is in backwards?

Yes read in the first posts, one capacitor is receiving a reverse voltage, but I guess a problem occurred and caused this voltage to become inverted. (reversing the cap didn't solve the issue)