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GS-X mk2

HeadAmp states every unit is designed, assembled and serviced at its shop in Charlottesville, Virginia.

Type
Solid-state headphone amplifier
Output
8 W into 25 ohms
Weight
5.4 kg
List
$2,995

Output into any load

The line is what the GS-X mk2 delivers, estimated from its published ratings. Each square is a headphone in the catalog at the power it needs for a loud 110 dB peak.

Grado Signature HP100 SE: needs 0.20 mW at 38 ohmsFocal Stellia: needs 2.51 mW at 35 ohmsFocal Clear MG: needs 3.98 mW at 55 ohmsMeze Audio Elite: needs 7.94 mW at 32 ohmsFocal Utopia (2022): needs 3.98 mW at 80 ohmsAudeze MM-520: needs 6.31 mW at 18 ohmsFostex TH900mk2: needs 10.0 mW at 25 ohmsRosson Audio Design RAD-0: needs 15.8 mW at 29 ohmsYamaha YH-5000SE: needs 15.8 mW at 34 ohmsSony MDR-Z1R: needs 10.0 mW at 64 ohmsHIFIMAN HE1000se: needs 25.1 mW at 35 ohmsFinal D8000 Pro Edition: needs 15.8 mW at 60 ohmsZMF Caldera: needs 31.6 mW at 60 ohmsMeze Audio Empyrean II: needs 100 mW at 32 ohmsAudeze LCD-5s: needs 100 mW at 35 ohmsMeze Audio ARTA: needs 15.8 mW at 225 ohmsDan Clark Audio Expanse: needs 100 mW at 26 ohmsZMF Vérité Closed: needs 12.6 mW at 300 ohmsDan Clark Audio Stealth: needs 100 mW at 23 ohmsAudio-Technica ATH-ADX5000: needs 10.0 mW at 420 ohmsSennheiser HD 820: needs 16.6 mW at 300 ohmsSennheiser HD 800 S: needs 20.9 mW at 300 ohmsAbyss Diana TC Signature: needs 100 mW at 72 ohmsAbyss AB-1266 Phi TC: needs 158 mW at 50 ohmsHIFIMAN Susvara: needs 501 mW at 60 ohmsPublished: 8 W into 25 ohmsPublished: 6 W into 50 ohmsPublished: 3 W into 100 ohms
Output into each loadPublished ratingHeadphone it drives at 110 dB (25)Needs more (0)Load in ohms across, power up, both on log scales

Build a setup with it

Start with the Abyss AB-1266 Phi TC, the hardest headphone here it drives with power in reserve.

Open in the setup builder →

Where to buy

$2,995

Price: New; Factory B-Stock $2,195.

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Title block

Maker
HeadAmp
Model
GS-X mk2
Type
Solid-state headphone amplifier
Made in
USA
Output impedance
Not published
Weight
5.4 kg
List price
$2,995 USD
Output power
8 W into 25 ohms; 6 W into 50 ohms; 3 W into 100 ohms
Topology
Balanced, dual-mono, Class A, discrete transistor; +/-20 V rails; low/medium/high gain; doubles as a line preamp
Finish
Two chassis (amplifier and power supply, each 14.5 x 9 x 2.5 in); colours: polished black, satin black, polished silver, polished blue, satin blue, satin red, satin grey, satin green, satin purple

What it drives

How the matching works

Plenty in reserve

10 dB or more above loud 110 dB peaks.

24

Enough

Reaches loud 110 dB peaks with up to 10 dB to spare.

1

Other solid-state amplifiers

Sources