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Thomann FetAmp

Microphone Preamplifier

  • Extremely low-noise Class A JFet amplifier
  • For dynamic and ribbon microphones
  • 2 Matched JFet transistor pairs
  • Input: Balanced 3-pin XLR female
  • Output: Balanced 3-pol. XLR male
  • Input impedance: 20 kOhm
  • Gain: 28 dB (@ 3 kOhm source impedance)
  • Frequency response: 10 - 50,000 Hz (+/- 1 dB)
  • Requires phantom power: 24 - 48 V.
  • Dimensions (L x W): 77 x 22 mm
  • Weight: 35 g
  • Developed and produced in Germany

Note: Does not allow phantom power to pass through to the microphone

Further Information

Channels 1
Number of microphone inputs 1
Instrument input No
Tubes No
Compressor/Limiter No
Equalizer No
De-Esser No
Phantom power No
Phase Reverse No
External effect loops No
Analogue Outputs XLR
Digitale Outputs 0
Headphone connection No
Level Meter No
83 Customer Ratings
  • 5
  • 4
  • 3
  • 2
  • 1
4.6 /5
  • handling
  • features
  • sound
  • quality
Total
handling
features
sound
quality
Simple and elegant solution to adding gain
Audio geek, 09.05.2021
These FetAmps were bundled with the new SM7B microphones we purchased for a studio rebuild. They do exactly what they say on the tin and give the 7B a much needed boost. For some reason though when used with our Alice Series A desk we get a very low level buzz induced to the signal chain and this affects all three FetAmps and channels in any combination. If I try them all on another mixer (D&R Airmate) the buzz disappears altogether and the gain improvement is crystal clear so I can only attribute the issue to the Alice desk itself. Luckily the Alice has a good 60dB of adjustable gain and these channel are superbly quiet so we weren't in trouble. I still need to experiment further with another Alice Series A in the second studio and probably just need to add some decoupling to the channel strip to soft this buzzing issue. After all they are classic mixers and need a bit of TLC from time to time!
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Total
handling
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Does the job perfectly, needs more recognition
Ronfontu, 25.01.2021
Little disclaimer: I would have gone for the Klark Teknik CT1 if it were in stock but I needed an preamp asap.

This preamp does a good job and needs more recognition imo.
There is not much to say, go for it if you want to save money and avoid overpriced stuff. I used this with the Rode Podmic (I have 2 of each) and it let me put my gain way lower, reducing ambient noise. On the two FetAmps I have bought, one is a little bit loose when plugging it into the mic, that's why I gave it 4 stars. Other than that, I didn't have any problem. I would recommend this item.
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Literally a cheaper version of the Triton.
HCJ , 10.03.2021
As stated in the title, this is basically the exact same piece of kit as the Triton FetAmp. i combine it with both Rode Procasters and Rode Podmics, and the result is a clear, loud, output. No need to place your noisy preamps too high.

I use it for my podcast, and find it has helped me achieve a clear sound, with very little need for post-processing beyond the basics.

The hardware is sturdy and well built, likely to stay together even with a lot of use.
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Nice compliment to my SM7B
Ghost Town Kermit, 17.12.2020
I use this with an SM7B running into a Behringer Xenyx QX2442 and then through Reaper for processing. It helps me get a really nice hot sound but without any hint of "strain". I recommend it highly unless you have some really good preamps. I'm a fan. Only complaint would be that the XLR connections are a tiny bit loose.
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$58
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Microphone preamps, are analogue devices that will remain important even as most other equipment is superseded by digital alternatives.
 
 
 
 
 
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