Hi, I have a Sennheiser ME66 on a K6 module and I get the attached noise when I power it up. Sometimes it takes quite a while before the static completely goes away, sometime it does not even go away.
I'm suspecting my capacitors but am no sound engineer!
Can you guys listen to the attached recording to help me figure it out?
Thanks
I'm suspecting my capacitors but am no sound engineer!
Can you guys listen to the attached recording to help me figure it out?
Thanks
Attachments
Its phantom powered and I suspect a bad connection in that area.
The crackling seems to fade ones the power is restored.
Hugo
The crackling seems to fade ones the power is restored.
Hugo
Thanks Netlist. Yes it's phantom powered. It does that no matter if I plug it one my Zoom F4 (24v or 48v), Mixer (48v) or Battery powered.
What you hear is silence before I turn on the phantom power, then the problem arise as soon as we supply voltage.
What you hear is silence before I turn on the phantom power, then the problem arise as soon as we supply voltage.
Sure, without phantom power it will be silent, but the alleged bad connection is still there.
Either it's the K6 or it can be the mic itself.
Hard to determine without interchangeble gear.
Personally, I would send it to Sennheiser, these are delicate.
Hugo
Either it's the K6 or it can be the mic itself.
Hard to determine without interchangeble gear.
Personally, I would send it to Sennheiser, these are delicate.
Hugo
In that case the mic itself will be the problem.It does that no matter if I plug it one my Zoom F4 (24v or 48v), Mixer (48v) or Battery powered.
Hugo
The ME66 is basically just the microphone capsule, so that would be the issue? Since it takes time to "charge" I thougth it was linked to the capacitorIn that case the mic itself will be the problem.
Seems you have a long time issue with that mic:
https://www.diyaudio.com/community/threads/sennheiser-k6-and-me66-how-to-disassemble.392428/
https://www.diyaudio.com/community/threads/sennheiser-k6-and-me66-how-to-disassemble.392428/
Yes I do 😉 Love its sound and can't spend over $1000 for another brand/model... And I hate to get rid of equipment that could be repaired 😉
Because the mic behaves the same regardless of which Phantom power you use, it must be the mic.
I see they can be had for +/- 190 euro or the equivalent in dollars.
Unless you open it and try to find the bad connection, that wouldn't be too pricey.
If the capsule is broken, that's another story.
I see they can be had for +/- 190 euro or the equivalent in dollars.
Unless you open it and try to find the bad connection, that wouldn't be too pricey.
If the capsule is broken, that's another story.
why would you turn a phantom powered mic on unmuted?
that's just bad practice, even a good phantom is likely to cause a bad thump when turned on unmuted, fact is the sudden transient is hard to suppress it's been know to cause shattered horn diaphragms in PA situations.
newbie roadies hot swapping mics on phantom powered lines have caused untold damage and headaches.
if the mic works fine otherwise and sounds good i wouldn't worry so much about having it serviced.
that's just bad practice, even a good phantom is likely to cause a bad thump when turned on unmuted, fact is the sudden transient is hard to suppress it's been know to cause shattered horn diaphragms in PA situations.
newbie roadies hot swapping mics on phantom powered lines have caused untold damage and headaches.
if the mic works fine otherwise and sounds good i wouldn't worry so much about having it serviced.
Hi Turk. Sorry but I'm not sure I understand. I plug my mic, then turn on the Phantom Power... then turn off and unplug. If there's another way I don't know it.why would you turn a phantom powered mic on unmuted?
The problem is sometimes it takes up to 30 minutes before the mic stop having noise and even then, I keep hearing a little something. That puts me in a situation where I can't rely entirely on my microphone on the Field. It happened to me again this weekend when we had to shoot outdoor and the scene sounds bad because of it...if the mic works fine otherwise and sounds good i wouldn't worry so much about having it serviced.
At this point, I think I'll get a new one while I try to find the issue for the fun of it.
I already opened the mic many times so it would be easy for me to test. I have several DIY projects done so far so I would be confortable testing the capsule and the powering module.
So just to make sure, you guys, according to the provided sound sample, believe it's either a connection issue or bad capsule? Capacitators would not be the culprit?
Thanks a lot everyone!
ok it sounds like there's definitely an issue with the mic.
and sorry i'm a live audio/Pa guy and it sounds like this is for video/film audio capture so unlike what i'm used to there may not be a way of muting the input, no level control?
this may apply https://www.google.com/url?sa=t&sou...C3AnoECAsQAg&usg=AOvVaw1ecqXQdc2bjlT50QRiwaGs
and sorry i'm a live audio/Pa guy and it sounds like this is for video/film audio capture so unlike what i'm used to there may not be a way of muting the input, no level control?
this may apply https://www.google.com/url?sa=t&sou...C3AnoECAsQAg&usg=AOvVaw1ecqXQdc2bjlT50QRiwaGs
The mic element's backplate and diaphragm form a capacitor (condenser)...So just to make sure, you guys, according to the provided sound sample, believe it's either a connection issue or bad capsule? Capacitators would not be the culprit?
Capacitors or their connections could be the culprit.
Unless you have removed all the "green rust" (corrosion/oxidization) from every possible portion of the internal circuitry and external connections, capacitors may be slowly discharging through unintended pathways, creating the noise.
Heat and humidity could affect the resistance of the corrosion paths, making a difference in the static discharge times and intensity.
Caig DeoxIT or similar products and a toothbrush might get positive results if the problem is not in the mic element.
Good luck!
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