The Nunez Amplification Tetra-Fet is a dynamic overdrive pedal introduced in September 2019, designed to offer tube amp sound and response in a pedal format1. It sits in the overdrive category, but with a Class-A circuit topology and a full three-band EQ, it aims at players who want amp-like touch sensitivity rather than a simple gain boost. It can also serve as a preamp, feeding a guitar directly into a power amp1.
What it does
The Tetra-Fet is built around a Class-A overdrive circuit. Nunez Amplification describes it as a dynamic overdrive designed to offer tube amp sound and response, meaning the pedal reacts to picking strength and guitar volume the way a pushed tube amp does1.
Its control set is broader than most overdrives carry:
- Low, mid and high EQ bands, a three-band EQ for shaping the core tone1
- Gain, setting how hard the circuit drives1
- Level, setting the output volume1
That three-band EQ is the main difference from simpler overdrive designs, which typically offer only tone and level. With low, mid and high controls, the Tetra-Fet can be dialed in for different guitars and amps rather than working around a fixed voicing1.
Using it as a pre-amp
Beyond its role on a pedalboard, the Tetra-Fet can be used as a pre-amp, feeding a guitar directly into a power amp1. For players running a power amp or building a rig around pedals instead of an amp head, that makes it a candidate for the front of the signal chain in place of a traditional preamp section.
Price and availability
Guitar World reported the Tetra-Fet as available at introduction, priced at $2751.
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Questions
What is the Nunez Tetra-Fet?
It is a dynamic overdrive pedal from Nunez Amplification, introduced in September 2019. It is a Class-A design intended to offer tube amp sound and response in a pedal, with a three-band EQ covering low, mid and high frequencies along with gain and level controls. It can also be used as a pre-amp, feeding a guitar directly into a power amp.
How much does the Nunez Tetra-Fet cost?
At its September 2019 introduction, Guitar World reported the Tetra-Fet was available for $275. That was the list price at launch, and it is the only price on record for the pedal.
Can the Tetra-Fet replace a preamp?
Nunez Amplification positions it that way: the pedal can be used as a pre-amp, with the guitar feeding directly into a power amp. That makes it an option for players running a power amp or a pedal-based rig instead of a traditional amp head.
Sources (1)
- Nunez's Tetra-Fet Drive brings the tube amp thunder, Guitar World, 2019-09-10