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
The WA3 achieved high standard of Woo Audio build quality, high performance and yet affordable. Its compact size offers both headphone and pre-amp capability. If one ever look for a best value product for high impedance headphones or a true pre-amp, look no further.
* 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...
“ The WA22 is my third Desktop Amp and second tube amp. I got it through AV One, a local retailer here, after 2 rounds of testing and I was impressed enough to purchase it. Built like a tank and weighed more then 10KG, the WA22 is one of the nicest looking amp that gives a the buyer confidence. The volume knob has stops built in. Personally I prefer a smooth knob with good...” --tassardar
“ 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
“This is my third Woo amp and by far my favorite. I owned a 6SE for two years, then sold it for a WA22 (which I still have). The 6Se had a nice warm sound, but the WA22 really took it up a notch, especially for balanced sources. The former owner of my WA22 raved about the WA5LE he had acquired, and I kept my eye open for a deal. I located this unit, which is a pre-2015 WA5. There...” --davehg
“ 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
“ 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
“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
“ Sorry for the late reply, but here we are after day1. I should start by saying that due to working 10am-6pm today, i didnt get as much time with the WA7 as i would have liked although i did get a couple hours in and some very interesting results. First off, some pics of when i first picked it up from A2A, god it was smaller than i thought!!!! = Next to the ever so tiny Pan Am...” --mrbigsby