FiiO GIGAS 1 Desktop Headphone Amplifier Green
FiiO - GIGAS 1 Desktop Headphone Amplifier, RCA and 3.5mm Analogue Inputs, Green
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Desktop Headphone Amplifier
Fiio GIGAS 1 – (4600mW Balanced)
Green
Born a giant. Built to drive.FiiO GIGAS 1 is a compact desktop headphone amplifier built for listeners who want serious driving power without the premium price tag. Designed to get the very best from full-size dynamic and planar magnetic headphones, the GIGAS 1 combines a discrete Class AB amplifier stage with high-current output to deliver effortless dynamics, excellent control and a naturally engaging sound.
Despite its small desktop footprint, the GIGAS 1 delivers up to 4600mW + 4600mW of balanced output power, providing the headroom needed for demanding headphones while remaining equally capable with sensitive in-ear monitors thanks to selectable high and low gain settings. The amplifier features both 4.4mm balanced and 3.5mm single-ended headphone outputs, making it compatible with a wide range of headphones and IEMs. The 3.5mm output also supports CTIA microphone pass-through, allowing compatible gaming headsets to retain microphone functionality for voice chat and calls.
Connectivity is equally versatile, with both RCA and 3.5mm line inputs allowing the GIGAS 1 to integrate easily into desktop audio systems. Connect a DAC, digital audio player, smartphone, computer or CD player and enjoy powerful, clean amplification without unnecessary complexity. Powered via USB with support for both standard 5V and 12V USB PD operation, the GIGAS 1 is an easy addition to any desktop setup, delivering high-performance headphone amplification in a sleek, compact aluminium chassis.
At A Glance
• Compact desktop headphone amplifier with discrete Class AB design
• Up to 4.6W + 4.6W balanced output power
• High-current transistor output stage for demanding headphones
• 4.4mm balanced and 3.5mm single-ended headphone outputs
• CTIA microphone pass-through via the 3.5mm output
• RCA and 3.5mm analogue inputs
• High and Low gain settings for headphones and IEMs
• USB powered with support for 5V and 12V USB PD
• Ideal partner for planar magnetic and full-size headphones
• Premium all-metal desktop design
what's included?
• FiiO GIGAS 1 Desktop Headphone Amplifier
• USB power cable
• User documentation
Standout Features
Dual headphone
outputsBoth 3.5mm single-ended and 4.4mm balanced outputs offer wide compatibility across headphones. The 3.5mm jack also supports CTIA-compliant microphone passthrough — ideal for gaming voice chat, calls, and multimedia.
Class AB discrete transistor amplificationAt its core is a meticulously engineered discrete amplification circuit using an op-amp + transistor current-amplification design. The classic onsemi MJE243G/253G pairing achieves high-current, low-impedance output — pushing a massive 4600mW + 4600mW balanced output that drives full-size headphones and IEMs alike, with a smooth, natural, musical sound.
Dual input
portsEquipped with 3.5mm and RCA inputs for extensive source compatibility. Connect digital audio players, smartphones, computers, or CD players with ease — a stable connection for HiFi listening or desktop entertainment, with no limits on your audio sources.
The Tech Spec
| Features | Specification | Model | JadeAudio (FiiO) GIGAS 1 |
|---|---|
| Product Type | Desktop headphone amplifier |
| Amplifier Design | Discrete Class AB, op-amp + transistor current amplification |
| Output Transistors | onsemi MJE243G / MJE253G |
| Maximum Balanced Output | 4600mW + 4600mW |
| Headphone Outputs | 4.4mm balanced, 3.5mm single-ended |
| Microphone Support | CTIA microphone pass-through via 3.5mm output |
| Analogue Inputs | Stereo RCA, 3.5mm line input |
| Gain Settings | High / Low |
| Power Supply | USB powered (5V or USB PD 12V) |
| Recommended Use | Dynamic and planar magnetic headphones |
| Chassis | All-metal desktop enclosure |
