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Woo Audio WA7 ‘Fireflies’ lands down under

The awkwardly named Woo Audio WA7 ‘Fireflies’ looks like it has dropped into Australia earlier than expected. There aren’t too many DAC/head-amp combos that really tickle my fancy but Jack Wu’s (picture above, right) latest is surely one of them. A matched pair of Sovtek 6C45, Class A, single-ended headphone stage married to a 32/192 asynchronous USB DAC. Not only that but the WA7’s cubic, glass-metal appearance ticks ALL the boxes for this aesthetically-conscious audiophile.

woowa7

I recall hearing a pre-production version of this at last year’s RMAF CanJam driving a pair of Hifiman cans (pictured above) and the sound was super-sweet with an good amount of attack and air.

The WA7 ‘Fireflies’ can also be deployed as a standalone DAC. Chip trainspotters note that the USB Audio Class 2.0 receiver is C-Media’s 6631 and the digital-to-analogue convertor is Texas Instruments’ PCM5102A.  I’m pretty sure the WA7 will run direct-connected to an iPad + CCK.

Lastly, note the twin output jacks on the front: there’s one tailored specifically to IEMs.

wa7-3

I’ll be pencilling this in for further investigation later in the year. In the meantime, you can grab one in silver or black finish for AU$1098.

Technical specifications:

  • Single-ended, class-A, transformers output
  • Linear external high-performance power supply
  • Two 6C45 driver/power tubes
  • Headphones impedance : 8-600 Ohms
  • Input impedance: 100 Kilo-Ohms
  • Sampling rate: up to 32-Bit, 192kHz
  • Inputs: 1 Asynchronous USB2.0, 1 RCA
  • Outputs: 1 1/4″ and 1 1/8″ headphone outputs, 1 RCA (same connector as the input)
  • Max output: approx 1 watt @ 32 ohms
  • Frequency response: 11Hz to 27kHz, +/-0.5dB
  • Distortion: <0.03%
  • S/N: 95dB
  • Mains supply: 100-120V, 220-240V, 50/60Hz, user selectable
  • Finish: Anodized aluminium
  • DC cord length: 4.25 ft or 1.3 m
  • Dimension: AMP: 4.8″ L x 4.8″ W x 5.1″ H with glass
  • PSU: 7.5″ L x 3.5″ W x 2.2″ H
  • Weight: AMP – 5.3 lbs / 2.4kg, Glass – 3.3 lbs / 1.5kg

wa7-2

Further information: Woo Audio / Addicted To Audio

Written by John H. Darko

John H. Darko

John is the editor of DAR, from whose ad revenues he derives an income. He is also an occasional contributor to 6moons and AudioStream and currently resides in Berlin, Germany.

Twitter: DarkoAudio
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