[Hedi]

Hi,
I just received my "Koma Field Kit".
Before I connect anything, I plug it into the monitor speaker via the "Master" output. I have constant background noise. I don't think it's due to my listening setup.
 Can you tell me what it is? Please . And how to solve this?

Thanks.

[Hedi]

Since no one answers my question, I have to make my own conclusion.
Thanks to Koma Electronik for their support.

[chrisi]

Hey! The Field Kit is likely not the most noise-free device out there, in big part this is due to the high amounts of amplification available from the 'GAIN'-setting. Every Field Kit mixer channel has an input gain of x1000. This is necessary to amplify low-amplitude signals like the pickup coils for example.

The noise floor of a Field Kit mixer channel, using professional line level signal as the reference (+4 dBu / ~3.5V peak to peak), is down ~60dB. With full 6.5Vpp signal as the reference level, this translates down to -65dB. This is of course far from todays digital -100dB noise floors but that's also not we are trying to compete with.

You can compare the noise/hiss you are experiencing with the aforementioned numbers if you have access to a DAW with some sort of a Spectrum Analyzer utility. If the noise floor is around the aforementioned numbers, there's nothing wrong with your device! Also, don't get confused with dBFS / dBU.

In any normal condition / use case the noise is not perceivable if any wanted signal is present at any given time. Also, proper gaining really helps.

I hope this answer cleared out some things!

[Hedi]

Hi, Your answer is quite clear. It remains to find a way to get the most out of this machine.

Thank you so much.