I hope you guys may help me with a problem.
I have 2 wireless microphones and 2 receivers both have the same problem.
First I think there is nothing wrong with the devices, just a problem for my kind off use.
The gain on the transmitter is all the way down, but still the mic is to loud coming into the receiver.
I mean, the signal is clipping on the receiver when I shout into it. (I hear then a distortion)
So, or the signal is receiving to loud ( I cannot change this on the receiver)
Or the signal is transmitting to loud, I think this is the problem.
Its possible to change the mic heads to another type like Beta58a, Beta87a, SM58, ...
so there are some difference in gain is think.
I have the Beta58a heads.
On the receiver I have leds indicating the signal is to HOT.
So want to make the audio about 6dB weaker then SHURE intended to be.
(the gain trimmer on the transmitter is all the way down, and still a little to load)
I tried something but it is not working.
I replaced the trimmer for audio gain (100K ohm) with a 250k ohm trimmer, but the result is axactly the same!
Then with 2 100K resistors (200k total) still the same output volume.
So I think the audio gain is controlled by a chip and not simply routed true the audio gain trimmer.
The trimmer controls the chip.
I am thinking to put a resistor in de mic head itself between the positive wire (maybe 40 ohm and see what happens)
So the incoming signal will be weaker before its going into the transmitter (or is this not a good idea?)
The head and transmitter are different parts. You can put other heads on there for different sound carasteristics.
Is there another way to lower the output volume for the transmitter you think ?
Shure UC2 (transmitter) service manual:
http://bmamps.com/Schematics/Microphones/Shure_UC2_Wireless_Transmitter_Service_Manual.pdf Normal manual UC2 transmitter:
http://cdn.shure.com/user_guide/upload/2006/UC_Wireless_User_Guide.pdfThere are some pictures attached.
Thanks!
From Belgium.