GS-X Mini Balanced Headphone Amp, Preamplifier

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Big power in a little form factor. The GS-X mini can power your favorite headphones without tak… More details

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Big Power In A Compact Headphone Amplifier

The GS-X Mini headphone amplifier is the latest and greatest from HeadAmp. The GS-X Mini comes in many different finishes so you can choose what best fits your own system, personality, or music preferences. The GS-X Mini is a fully-balanced audiophile headphone amplifier featuring a balanced 4-pin XLR output and a single-ended quarter-inch headphone output.

The GX-X Mini Headphone Amplifier also has a standalone preamp function - allowing you to use the device as a preamplifier for your system. With excellent sound quality and input and output options, the GS-X Mini headphone amplifier is a great choice for those who want a compact amplifier unit without having to sacrifice power and premium hi-res options.

The Craftsmanship of the GS-X Mini

The GS-X Mini Headphone Amplifier is a desktop-friendly and compact amplifier that fits perfectly in a home or office with its small form factor. HeadAmp's dedication to quality construction, fit, and finish makes the GS-X Mini a timeless statement of premium audio. A sleek design, compact chassis, and everything you need in a high-powered headphone amplifier, the GS-X Mini shows off the quality craftsmanship that HeadAmp is known for. Also popular and carried over from HeadAmp's other models, the characteristic colored front panels (as featured on the Blue Hawaii SE and the GS-X MK2) are available as custom options on the GS-X Mini Headphone Amplifier so you can show off your personal flare and accommodates every sound system aesthetic on the market.

HeadAmp GS-X Mini headphone amplifier lifestyle shot sitting on table behind a woman listening to music with her headphones while using a laptop and sitting on a couch.

Features at a Glance

  • • Balanced 4-pin XLR Output
  • • SE 1/4" Phones Output
  • • Low & High Gain options
  • • 1 pair Single Ended RCA Input
  • • 1 pair 3-pin XLR Input
  • • 1x stereo pair RCA Outputs
  • • 1x stereo pair XLR Outputs
  • • Standalone Preamp Function
  • • Pre-Amp Switch: Enables Pre Outs & mutes headphones
  • 3 Year Warranty on all Parts and Labor

A Compact Headphone Amplifier with a Story

Built using a special variation on our well-reviewed class-A audio circuit from the GS-X mk2 based on the famous dual-differential design by Kevin Gilmore the new GS-X mini is the first HeadAmp product to deliver balanced headphone drive from all audio sources, single-ended, or balanced. This means no more compromising your headphone experience when using a single-ended source, your high-end headphones will always benefit from the speed and power of balanced drive when connected to the GS-X Mini.

Now paired with a custom discrete power supply based on the Golden Reference Low Voltage design the Mini can out put up to 6W making the GS-X mini a great pairing with most medium-to-low sensitivity headphones, and high impedance headphones, whose sound comes alive when given balanced drive and higher power. Models like the Sennheiser HD800S, HIFIMAN HE-1000SE, Audeze LCD-5 all benefit from the clean, steady power delivery just as well as with easier to drive headphones like the Dan Clark Audio Ether series, Audeze LCD-X, and HIFIMAN Ananda. With balanced drive from any source, even single-ended ones, there's no excuse not to give your high-end headphones the power they crave, by connecting them to the new GS-X Mini.

HeadAmp GS-X mini amp sitting on a shelf with headphones hanging from a stand beside it.
HeadAmp GS-X Mini Headphone Amp sitting on a table next to other audio equipment and headphones.

About HeadAmp

HeadAmp builds some of the world's best headphone amplifiers like the famous Blue Hawaii SE 9Special Edition) and the newer compact GS-X Mini. All of their solid-state amplifiers start with new-old-stock Japanese sand which is irreplaceable for discrete solid-state designs.

Since HeadAmp Audio Electronics' founding in 2002, the company has designed and built award-winning headphone amplifiers and pre-amplifiers with a steadfast commitment to quality and precision. That laser focus has earned HeadAmp a worldwide reputation for making some of the finest headphone electronics on the market.

HeadAmp's design philosophy is engineering-forward, aiming to produce amplifiers as true to the source as possible, for the best listening experience possible. HeadAmp's amplifier's aim to drive your headphones to the fullest potential, regardless of driver type, efficiency, or impedance. Ranging from the diminutive Pico Slim for in-ear monitors (IEMs), to the legendary Blue Hawaii SE for electrostatic headphones, there's a model in HeadAmp's lineup to make any and every headphone shine.

All HeadAmp amplifiers and products are designed, assembled, and serviced at their shop located in Charlottesville, VA USA.


Where is HeadAmp located?

All HeadAmp amplifiers and products are designed, assembled, and serviced at their shop located in Charlottesville, VA USA.

Can the GS-X Mini Amplifier work as a Preamp?

Yes, the GS-X Mini can work as a standalone preamplifier.

Can you choose the color of the front plate on the GS-X Mini?

Yes, you can customize the face plate of the GS-X Mini with a number of color options available in the drop-down menu above.

What can I connect to my headphone amplifier?

In typical Hi-Fi systems, you’ll be connecting your source which may or may not have a DAC (digital to analog converter), to your amplifier. Sometimes you can connect a portable DAC to the amplifier, or sometimes you can have all-in-one units (with built-in-DACs and amplifiers) that can do it all. The accessibility of having external components allows you to mix and match sound and functionality to your heart’s content.


  • Inputs: 1 XLR, 1 RCA
  • Outputs: Active Pre-Amp: 1 XLR, 1 RCA
  • Headphones: 1 4-pin XLR balanced, 1 1/4” stereo
Amp Specs
  • Topology: SuperSymmetry BJT, Fully Balanced
  • Gain: 2x Adjustable
  • SNR: 112dB
  • Dynamic Range: 111dB
  • Headphone Output Impedance: less than 1 ohm
  • Preamp output impedance: 100 ohm
  • Input impedances: 50K-ohm
  • Power Output (HP/Balanced): 6W/25-ohm, 4W/50-ohm, 2W/100-ohm, 1W/300 ohm
  • THD: 0.0014% / 1KHz
Internal Power Supply
  • Type: Linear Regulated
  • Input: 115/120VAC
  • Power Consumption: 30W
  • Amp: 11x10x2”, 6lb
  • Shipping Box: 16x12x6, 7lb