WooAudio is a brand with 15 products on Head-Fi.org.
“The WA2 is a five-star amp sold by a two-star company. The amp itself is a marvel of engineering, built on a Bauhausian aesthetic: form follows function. It's pretty to look at, but, properly upgraded, infinitely prettier to listen to. With dual driver, rectifier, and power tubes, it's possible to sculpt and finesse sound signatures: several reviewers have already noted that the amp lends...” --Chesterfield
* Technical Specifications: Fully balanced topology * * Dual power switch * Standard chassis size * Removalbe glass panel * External dimension: PSU: 4.5”(H), 16.5”(W), 12”(D) AMP: 7.5”(H), 16.5”(W), 12”(D) (with tube gauard) * Weight (AMP + PSU): 40 pounds or 18.2 kg * more to come... * From a cold start,...
* Technical Specifications: Input impedance: 100 Kilo-Ohms * Frequency response: 10 Hz - 80 KHz, -3dB * Signal/Noise: 100 dB * Bias voltage: 580VDC * THD: <= 0.1% * Voltage: AC 110/220V, 50/60 Hz * External dimension: 6½(H), 13"(W), 10½"(D) * Weight: 22.5 lbs * Standard Featurs: Point-to-Point Wiring * Four 12AX7 [PDF] drive...
“ I'm a relative newbie to the headphone game. My reference system (at the time of writing) is a Burson 160D, and having a good reference is essential when you're comparing tubes. My reference headphone (at the time of writing) is the Sennheiser HD 650, which are known for their veil until you put great amplification with them. I also own UERMs, which aren't...” --reeltime
“ Product Standard Build Woo Audio 5 LE Headphone Amplifier In this day of mass produced equipment it is nice to find a small boutique headphone and headphone amplifier company who are sincerely into it. So how does the selection process work? The big question is which amplifier to have these guys make for you, and why? I have had tube equipment forever. My first...” --Redcarmoose
“First off, this is my first review of an audio product. I have talked with Mike from Woo Audio (Hifiguy 528 on Head-fi and Hifi Insider on YouTube) on numerous occasions and he offered me the opportunity to review the Woo Audio WA6SE. Of course, I jumped right on that. Gear used with the WA6SE: Sources: PC running Foobar2000 and Spotify Premium Cambridge Audio DacMagic ...” --PETEREK
Energizer for Stax pro-biased electrostatic headphones.
* Technical Specifications: Two 300B [PDF] power tubes * Two 6SN7 [PDF] drive tubes * Two 5U4G [PDF] rectifier tubes * Voltage: AC 110/220V, 50/60 Hz * External dimension (each): 8½(H), 9"(W), 17"(D) * Weight: Amp Unit: 35 lbs, Power Supply Unit: 40 lbs * Headphone Amplifier Specifications: Headphones impedance : 8-800 Ohms * Frequency...
“ I had the WA3 in about 2005. It was a great amp with my Senns... not so much with my Grados. It had all the great sound qualities of a fine OTL tube amp, especially with the Tung Sol 5998 / 7236 rectifier. Anyone would be very pleased with the WA3 / WA3+ to drive their high impedence phones - but, I'd rather have a tube hybrid, or TC tube amp to drive my Grados / Denons /...” --Gradofan2
“REVIEW: Wooaudio WA8 Eclipse All images are clickable for the full res version! Equipment used: Headphones: Hifiman HE-560, AKG K7XX, Audeze LCD-2f, Sennheiser Momentum, HD-650, Oppo PM-2, PM-3, Aurisonics ASG 2.5, JVC HA-FX850, UE900s, plenty of other IEMs. Music used: From Röyksopp to Amber...” --Koolpep