WooAudio is a brand with 15 products on Head-Fi.org.
“ 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
“ 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'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
“ 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
Energizer for Stax pro-biased electrostatic headphones.
“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
“ 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
* 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...
* 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...