
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.
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
- Very small and light
- Fits in line with a cable
- Easy to add to a setup
- 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
| Model | GS458RT |
|---|---|
| Dimensions & fit | |
| Item dimensions | 5.05 x 1.25 x 1.2 inches |
| Item weight | 2.72 ounces |
| Power & efficiency | |
| Voltage | 24 volts |
| Compatibility & installation | |
| Mounting type | Surface Mount |
| Other details | |
| Number of channels | 2 |
| Specification met | RoHS |
| Part number | GS458RT |
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.