The Audiophiliac

The Woo WES: eight tubes on top, two in the lower half.

(Credit: Steve Guttenberg)

Lucky me, I've reviewed most of the world's very best headphones, including the Audio Technica ATH-W5000, Denon AH-D7000, and Sennheiser HD 800. But now there's something even better: the Woo Audio WES headphone amplifier ($4,500) and Stax SR-007Mk2 headphone ($2,410). The complete review can be found on the Home Entertainment Web site.

Yeah, it's a lot of dough, but the Woo/Stax combo creams the other contenders for world's best headphone sound, and the pair goes for less than the price of a world class, high-end camera, like the Canon EOS-1Ds Mark III. The camera's great now, but in a couple of years it'll be hopelessly out of date. Great audio is simply a better long-term investment.

Stax headphones use a very different operating principle than dynamic headphones (pretty much every headphone from lowly earbuds to full-size headphones are dynamic designs). Stax has been making electrostatic headphones since 1960 in Japan, and the company's current flagship model, the SR-007Mk2, is what I'm using with the Woo WES amplifier. The Stax is a big and comfy design.

The Stax SR-007Mk2 headphone

(Credit: Stax)

The Woo WES is an all-triode tube drive, fully balanced design; the prototype unit I'm reviewing has a total of 10 tubes (four EL34 power tubes, four 6SL7 drive tubes, and two 5AR4 rectifier tubes), but production models will have 11 tubes. It works with Stax and Sennheiser electrostatic headphones only. The machined, all-metal dual chassis is beautifully crafted.

The WES, like all Woo amps, was designed by Wei Wu, and handcrafted in Woo Audio's factory in New York City. Each WES will be built to order over a four-day period; it's slated for release in October 2009. The preintroduction price is $4,500, and full retail is expected to be $4,990. Woo prices start at $470 for the WA 3. All Woo Audio electronics are sold direct from the factory, the waiting list is three to four weeks.

A look inside reveals no circuit boards; all wiring will be "point to point." That's a very expensive way to manufacture amplifiers, but Woo Audio thinks point-to-point wiring makes for better-sounding amps. The amp also features handmade inductors, and even the machined cone feet are designed specifically for the WES.

The clarity of the Woo/Stax combo with acoustic jazz mimics the way live, unamplified music sounds in a good concert hall or club. The Woo/Stax is the closest thing to being there I've heard to date.

The K 702's oversize ear cushions are super comfy.

(Credit: AKG)

Let's face it, headphones always sound like headphones--that is--they never really sound like speakers.

Headphones "squirt" sound directly into your ears, but the new AKG K 702's much-larger-than-average earcups allow the drivers to be placed farther away from your ears, so the sound seems less direct. This headphone was designed for recording engineers and studio use, and the sound quality is right up there with some of the best headphones ever made. Priced at $540, it's not cheap, but it's not at all out of line for what you get. This blog is a preview of my upcoming full CNET review.

I found the K 702's expansive sound hugely appealing; that's why it sounds less like a headphone and more like speakers in a room. Not the same as, but less headphone-like than most.

The AKG K 702 is, in fact, the professional version of the consumer K 701 model that came out a couple of years ago. That one received raves from the audiophile press, including me, so naturally I had even higher hopes for the K 702, but it's essentially the same design as the K 701. The K 702 is matte dark blue (looks black to me) instead of gloss white and features a detachable cable.

Thanks to the way the K 702's real leather/metal wire headband distributes the weight of the 'phones evenly across your head, and those large, extra soft velour covered cushions, you can wear these headphones for hours at a time and they'll remain nice and comfy. Build quality, durability, fit and finish are all first rate.

I've made the point in previous blogs, but to get the best sound from high-end headphones plug them into a high-quality headphone amplifier. Sure, the K 702 sounded fine plugged into my Onkyo SR-TX 805 AV receiver, but the headphone was sweeter and prettier sounding with my Woo Audio WA6 SE tube amp ($1,050). Then again, the K 702's sound over my ancient 15GB iPod wasn't too shabby.

(Credit: Woo Audio)

You have two grand to spend on a fantastic stereo system. Can your cash get you there? Yes, it can!

In this case, we're talking about a headphone-based system, but I will in the coming months cover speaker-based audiophile-grade systems for less than $3,000.

For the headphone system, I'm recommending the Woo Audio WA6 Special Edition vacuum tube headphone amplifier ($1,050) I reviewed in yesterday's blog, along with Grado RS-1 headphones ($695), and Oppo's DV-981HD SACD/DVD-Audio player ($229). All prices are manufacturer's suggested retail price.

Mind you, the Woo and Grado are hand-crafted in New York, and they are truly stunning designs built to last a long, long time. The Oppo is nowhere as extravagant, but the brand has gained quite a reputation among audiophiles for building budget-price high-performance players (I didn't have time to acquire an Oppo, so I used my Sony DVP-NS90V ($220) SACD/DVD player for most of my listening tests. DVD-As were played on a Pioneer DV-45A.

(Credit: Steve Guttenberg)

First, a word about the W-G-O's sound signature: the clarity and "listenability" made long sessions a joy. The tubes didn't--not even a little--soften the sound or add a mellowing influence. The resolution of fine detail was right up there with the very best I've heard.

"Lies" from The Black Keys' Attack & Release CD wasted no time in telling me what the W-G-O system did so well. The duo's distortion-strewn blues rock was all there, and it was great to be able to play it as loud as I wanted without worrying about disturbing my neighbors.

The W-G-O made it all sound vivid and immediate, as if there was nothing between me and the musicians. Bass went plenty low but never turned flabby.

Neil Young's Greendale on DVD-Audio upped the ante even more. I found the "live," you-are-there quality to the sound highly addictive. Neil's acoustic guitar, in particular, had an eerie presence over the W-G-O.

(Credit: Oppo)

Oh, and there's no reason why you couldn't use the W-G-O to enjoy DVD movies. Two-channel home theater-in-your-head will be just as amazing.

Just for fun, I plugged my old Sennheiser HD-580 headphones into the Woo, and I have to say, they never sounded better. Nowhere as vibrant as the Grados, but the Sennheiser's more laid-back sound might suit some tastes better than the Grado. The HD-580 is no longer made, but the current model, the HD-650, might be a worthwhile option.

(Credit: Woo Audio)

Would you buy a Ferrari for $1,050? OK, how about a $1,050 headphone amplifier?

The Woo Audio WA6 Special Edition headphone amp is built to Ferrari levels of quality and performance. Even before I listened to it, I knew it was going to be amazing.

It's a two-piece design. One chassis contains the power supply, the other is the amplifier proper. The pewter color, die-cast chassis parts are finished to a high standard, fully equal to $10,000 stereo amplifiers I've reviewed, but the WA6-SE is a good deal smaller than your average high-end amplifier. The two chassis together fill just 11.25 inches by 10.25 inches of shelf space.

The WA6-SE is a pure tube design, without a single semiconductor or integrated circuit in the entire amp. It's hand-crafted in New York's Queens borough, and there are no printed circuit boards; all wiring is point-to-point hand-soldered. Woo Audio builds each amp to order, so it can incorporate custom options and offer a wide range of upgraded parts. Current build time is about three to four weeks.

Woo Audio offers an extensive range of headphone amplifiers. Prices start at $470 for the Woo Audio 3; the top-of-the-line WA5 LE runs $2,400. When I heard the $585 WA6 amp a few months ago, I was knocked out by its sound.

My pal Wes Bender checks out a pair of classic AKG headphones.

(Credit: Steve Guttenberg)

On Sunday, I went to a meet organized by Head-Fi, a national headphone club.

The vibe at the Bayside, New York, event was relaxed as I sampled the mind-expanding sounds of Grado, Sennheiser, AKG, and Stax headphones, driven by awesome headphone amplifiers, some of which were commercial products. Some were one-offs, built by their proud owners.

A few of the amps were portables, and the standout was the superslim MiniBox D ($79) from Head-Direct. This little thing pumps up the power of iPods with amazing gusto, and while listening to Head-Direct's Yuin PK2 earbuds ($79), the sound was remarkably un-headphone-like (more like listening to speakers). Bass was deep, rich, and weighty.

The catch: these headphones, plugged directly into an iPod, won't play at all loud; you really need to use the Yuin earbuds with the MiniBox D to get the full effect.

The MiniBox D headphone amplifier

(Credit: Steve Guttenberg)

I next listened to a set of Sennheiser HD880 headphones over a Shanling PH3000 amp ($400). This combo's dynamic range, impact, and resolution of fine detail blew my mind. Truly amazing.

I was totally wowed by Woo Audio's vacuum tube headphone amplifiers. First of all, they look amazing, the quality of the machined metal chassis is extraordinary (it's made for Woo in China, but the internal construction is handled here in New York).

Instead of the usual printed circuit boards, Woo hand-wires each unit; it's a labor-intensive process, but it yields the best sound quality. And since the amps are hand-built, they can be custom-ordered with all sorts of parts upgrades. I spoke with Jack Woo, and he explained that his company does that sort of thing all the time. It can build one-off designs, and yet the prices are solidly in the affordable range.

The Woo all-tube amp delivers bona fide high-end sound for a real-world price!

(Credit: Woo Audio)

I played my own CDs over Woo's $570 WA6 all-tube headphone amp while listening to a Grado headphone not so different from my Grado RS-1 'phones.

It was almost magical the way the Woo WA6 made every recording sound better than I thought it was. There was a satisfying "wholeness" to the sound, voices were so much more natural, flesh and blood human, and the bass definition was truly exceptional. Treble detail was sweet, delicate, and clear as can be.

The fact that Woo can offer artisan craftsmanship at prices competitive with the plastic, disposable tech sold at chain stores and Web sites is icing on the cake. For about a grand, you could pick up one of Woo's amps and AKG's stellar K 701 headphones.

Head-Fi has meets in cities all over the country. Check its Web site to see when it'll have one near you. I had a blast.