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Velleman Microphone Preamp Kit
this preamp i bought is picking up the 60 cycle hum from the power supply any suggestions on how to reduce or even remove this hum?
Put it in a shielded box, or if the preamp and board need to be in the same box, add a separator shield between. This board will definitely pick up 60Hz hum, especially at higher gains.
Date published: 2016-01-23
Can a condenser mic element be hooked to this preamp?
yes, but only if the condenser mic utilizes an external phantom power source.
Date published: 2014-12-16
I know this says it's rated for 10-30 volts. Is there any way to make it work on a 9v battery?
This preamp should "work" on 9 volts, but you may not get the maximum amount of gain specified.
Date published: 2014-12-16
If I am using this with a board amp that requires a power supply as well, can I use just one for both somehow?
Yes, as long as both devices work with the same power input. You just simply split the output from the power supply.
Date published: 2014-11-24
Does this provide the 48V phantom power for the microphone?
Does this provide the 48V phantom power for an XLR microphone? Or is that something separate I have to get for the mic?
Using this will require a separate phantom power supply for your mic as this does not output phantom power. In fact, this requires it's own 10-30 volt power supply that is not provided with the kit. There are some microphone preamps here on PE that are reasonably priced and provide phantom power. The first one I list below is a small low cost single channel one that provides 21-30 volts of phantom power (this is usually plenty). The second one is a nice 2 mic set up that provides a full 48 volts of phantom power.Or, if you want to use this Velleman kit, you can find some DIY schematics for building your own phantom power supply with a little Googling.
Date published: 2013-03-19
The mic has batteries and is plugged into correct jack. . .any ideas???
I bought this type for use in my computer which does have a stereo input jack. The mic is powered by batteries instead of a mic jack power source. I contacted Tascam and they suggested a mic pre-amp. This surprised me since cheaper mics have better gain while this Tascam has to be yelled into. My question is. . .could this plate pre-amp work if I used two to maintain the stereo recording.Thanx in advance if you have a clue. I have also tried USB mics but I'm running Window XP Professional so it requires a driver and will not 'sense' a driver when a hardware device is plugged in.
This pre-amp should work fine as a pair. First, though, check the volume settings on your computer. If a cheaper, higher-gain microphone has been plugged in, the computer may have turned its own volume down to compensate.
Date published: 2013-02-16