US

Triton Audio FetHead in-Line Microphone Preamp

  • In-line microphone preamp
  • 24 volts listed
  • 2 channels per the spec table
  • 2.72 ounces, 5.05 x 1.25 x 1.2 inches
  • RoHS compliant

Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A very small in-line microphone preamp that fits between a microphone and its cable. The listing gives no gain figure or microphone compatibility, so check with the maker before buying.

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ASIN: B06XDPTDN5Model: GS458RTCategory: Preamps

Overview

Plugging in between a microphone and its cable, this tiny in-line preamp adds gain at the source of the signal. The body is small and light, and the spec table lists a voltage rating and a channel count.

An in-line unit is easy to add to an existing setup, and its size suits tight spaces. The listing leaves out gain, noise and input impedance figures, so matching it to a microphone has to come from the maker.

Who it's for

Users with a quiet microphone who want to add gain close to the source. Anyone who needs a full channel strip, or a unit with documented compatibility, should look at a larger preamp.

Pros and cons

Pros
  • Very small and light
  • Fits in line with a cable
  • Easy to add to a setup
Cons
  • Gain not listed
  • Microphone compatibility not stated
  • Channel and voltage details are brief

Performance notes

Placing gain right after the microphone lets the signal travel down the cable at a higher level, which reduces the noise picked up along the way. The result depends on the microphone's output and on the powering available.

Specifications

ModelGS458RT
Dimensions & fit
Item dimensions5.05 x 1.25 x 1.2 inches
Item weight2.72 ounces
Power & efficiency
Voltage24 volts
Compatibility & installation
Mounting typeSurface Mount
Other details
Number of channels2
Specification metRoHS
Part numberGS458RT

Frequently asked questions

Is it a full preamp channel?

No. It is a small in-line unit that fits between a microphone and its cable.

How big is it?

The listing gives 5.05 x 1.25 x 1.2 inches and 2.72 ounces.