IMPORTANT: Please note that our SHOWROOM IS CLOSED until further notice. But all other services, phone and online orders are working normally. Click here for further info.
Price match offer by Studiospares

Price Match

Excellent support and technical sales team

Excellent Support

We are rated 9.5 on Trustpilot

Rated 4.8 / 5

Free delivery over £149

Free Delivery Over £99 (exclusions apply)

Finance options

Finance Options

Alternative Image
TritonAudio FetHead
Alternative Image 1
Alternative Image 2

TritonAudio FetHead

Product Code: 314000

FetHead is a low-noise, high quality, in-line microphone preamplifier. It provides improved sound for Ribbon and Dynamic microphones.

£60.00 (INC VAT)
59 In Stock0 More Info
Add to Basket Add to Wishlist Print Check out Finance Options here

Delivery Icon

Price Match

We'll match or beat any price

Price Icon

Free Delivery

On Orders over £99 (INC VAT)

  • Description
  • Specifications
  • Reviews
  • Media

Boost your microphone

FetHead is a low-noise, high quality, in-line microphone preamplifier. It provides improved sound for Ribbon and Dynamic microphones. The electronics are housed in a robust metal chassis with a balanced 3-pole female XLR input and a balanced 3-pole male XLR output, rugged enough for use at home, in the studio or on tour.



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.


Low noise

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
  • Balanced output
  • Lots of headroom
  • Z-in 22k
  • 24-48 v phantom power
  • Ultra low noise Class A JFet amplifier
  • 27dB amplification (@3 KOhm load)
  • 4 matched jFets
  • Z-in 22KOhm
  • Require 24-48V Phantom Power
  • For Ribbon & Dynamic microphones
  • Your mic performs under "no-load" condition
  • Frequency response 10hz-100khz (+/- 1dB)
  • Shielded rugged enclosure
Customer Reviews
  • Verified Customer
    on 27 August 2016
    I bought a couple for use with my Audix OM7 mics which previously needed so much gain it introduced unwanted noise into the output. With these my gains are vastly lower and noise is virtually non existent.
  • Verified Customer
    on 23 March 2016
    Very useful in the studio for low output mics. Perfect on SM7, Coles 4038, AEA R84. Beeb Reslos etc etc. Highly recommend.
  • Verified Customer
    on 23 October 2014
    Great product. Really adds some clean gain to your microphone without changing the sound. Makes singing such a joy.
  • Verified Customer
    on 23 October 2014
    Purchased one this week at Studio Spares. The Triton Fethead is incredible, It really adds extra clean gain on my mic without changing the sound . My Shure Beta 58a sounds even more fuller and detailed going through the FEThead
  • Verified Customer
    on 20 June 2013
    I have been using the FetHead on an SM57 in conjunction with a condenser for recording guitar / bass amps. The difference in sound quality is noticeable immediately. There is a much larger frequency range being picked up with more clarity and very little noise. I'm fairly confident I will always use this as a pre for my dynamic mics.