Inspired by the positive results of the BigAmp, Tritonaudio wondered if a phantom powered, high quality preamp preceding the microphone cable could improve the sound quality of a ribbon or dynamic microphone. The results were more than convincing. Enter FetHead, their latest innovation in phantom powered preamp design. While testing FetHead, Tritonaudio noticed an overall increase of sound quality and a change of tonal character of the attached dynamic microphone towards a more open, controlled sound.
Which microphones benefit
In short, we noticed an improvement on all tested dynamic microphones. A Shure SM57 or SM58 for instance, sounds more responsive over a broader frequency range. When mated with a high-end dynamic microphone like a Sennheiser MD441, or Shure SM7 FetHead really shines. Ribbon microphones benefit greatly too because of a much better impedance match, which lessens the load on the microphone, thus giving it better transient response characteristics. FetHeads high quality, low noise signal amplification also extends the usable range of a ribbon microphone, by making it more suitable for recording softer passages without introducing noise.
Protects the microphone
Some ribbon microphones do not tolerate phantom power, FetHead's circuit uses Phantom power but shields it from its input (and the microphone's output), as a result it offers effective protection to the microphone.
Fethead uses low noise jfets configured as a double class a amplifier. Jfet's are among the most quiet amplifying elements available today. The calculated noise figure of the FetHead based on the jfet's datasheet is lower than we are able to measure.
How it works
Attach FetHead on to a balanced microphone cable and plug it in a dynamic microphone, switch on phantom power and enjoy FetHeads Natural open sound!
Ultra low noise Class A JFet amplifier
27dB amplification (@ 3 Kohm load)
double single ended amplifier topology
Lots of headroom
24-48 v phantom power