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Woo AudioWoo Audio

WA12 Zircon

Besides three conventional headphone outputs it carries a direct-drive True-Ribbon 4-pin XLR output, and the internal battery runs for 16+ hours.

Type
Solid-state headphone amplifier
Output
7.5 W into 8 ohms
Weight
11 kg
List
$7,999

Output into any load

The line is what the WA12 Zircon 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 ohmsAudeze MM-520: needs 6.31 mW at 18 ohmsFocal Clear MG: needs 3.98 mW at 55 ohmsFostex TH900mk2: needs 10.0 mW at 25 ohmsMeze Audio Elite: needs 7.94 mW at 32 ohmsFocal Utopia (2022): needs 3.98 mW at 80 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 ohmsDan Clark Audio Stealth: needs 100 mW at 23 ohmsDan Clark Audio Expanse: needs 100 mW at 26 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 ohmsZMF Vérité Closed: needs 12.6 mW at 300 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: 7.5 W into 8 ohmsPublished: 6.5 W into 30 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 RAAL 1995 Immanis, then add a DAC, a cable and a chair.

Open in the setup builder →

Where to buy

$7,999

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Title block

Maker
Woo Audio
Model
WA12 Zircon
Type
Solid-state headphone amplifier
Made in
USA
Output impedance
1 ohms
Weight
11 kg
List price
$7,999 USD
Output power
7.5 W into 8 ohms; 6.5 W into 30 ohms
Topology
Fully balanced, Class A, zero feedback, solid-state; eight current amplifiers per channel; dual power supply (linear AC or internal lithium-ion battery)
Finish
Dual-layer chassis machined from billet aluminium, black or silver anodised

What it drives

How the matching works

Ribbon headphones

From its direct-drive ribbon output.

1

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