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RME User Forum → Miscellaneous → Do I need to buy something else with a SM7B to plug it to the pro fs ?
Hello, I never used an XLR mic before, do I need something in particular apart from buying the shure sm7b to have it work smoothly with the babyface pro fs ? Do I need some sort of power supply ?
Thanks
You'll need an XLR-cable. Just plug it in and adjust your input gain from Totalmix.
Thank you
… and disable +48V phantom power, it’s not needed for this mic.
… and disable +48V phantom power, it’s not needed for this mic.
Thanks. Why is it that this mic doesn't need a phantom power ? what make a mic need a phantom power ? is it always the sign of a better quality mic ?
Not a question of quality!
There are different types of microphones. Dynamic ones, like the SM7B, transduce the acoustic waves directly in electrical signals and don’t need external power. For this, such mics are less sensitive and need more preamp gain. I would say, the Babyface pro has clean and low noise preamps with enough headroom to work well with the SM7B.
Condenser mics have active electronics built in and need either the phantom power from the preamp or a battery.
oli77sch wrote:… and disable +48V phantom power, it’s not needed for this mic.
Thanks. Why is it that this mic doesn't need a phantom power ? what make a mic need a phantom power ? is it always the sign of a better quality mic ?
Google and you find a lot of articles to gather some basic knowledge.
You get tons of result, here a few.
https://www.gear4music.com/blog/differe … crophones/
https://www.gearank.com/articles/types-of-mics/
https://soundref.com/different-types-of-microphones/
https://audiouniversityonline.com/types-of-microphones/
https://mastering.com/types-of-microphones/
The SM7Bis a very nice mic - but even for a dynamic mic it's quite insensitive.
Many pre-amps need to be close to full gain when using it - and they often get noisy at full gain.
So choices are to either use a high gain mic pre-amp - or a signal booster.
When using mine in the studio I either use a Triton Audio fet head https://www.tritonaudio.com/product/fethead/ and a conventional pre-amp. Or a high gain AEA preamp.
The fethead would be a good option with the baby face (it needs 48V turned on).
But try it without and see how you get on.
The SM7Bis a very nice mic - but even for a dynamic mic it's quite insensitive.
Many pre-amps need to be close to full gain when using it - and they often get noisy at full gain.
That's a myth. All mic preamps reach their best gain to noise ratio (EIN) > 30 dB of gain. The total amount of noise is the same with or without FetHead.
So choices are to either use a high gain mic pre-amp - or a signal booster.
'FetHeads' are not necesssary and ineffective with competent mic preamps, which all our units (and even most of our competition) have. FetHeads have just one valid application case: if the distance between mic and preamp is big, and the cabling is noisy. Then it makes sense to have a higher level already at the mic's place to send that higher level signal through the cable.
…FetHeads have just one valid application case: if the distance between mic and preamp is big, and the cabling is noisy. Then it makes sense to have a higher level already at the mic's place to send that higher level signal through the cable.
… second valid application case in my opinion is to protect dynamic (ribbon!) mics on multichannel units (cheap mixing desks or such) which only have global phantom switches and one wants to use different mic types at once.
RME User Forum → Miscellaneous → Do I need to buy something else with a SM7B to plug it to the pro fs ?
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