Wa3 headphone and preamplifier schematic
Other Notes : "The WA3 is a high quality, meticulously made product inside and out that uses point-to-point wiring throughout its construction. It uses a premium watt toroidal power transformer for quiet, dependable operation. An Alps potentiometer and power switch plus silver plated wires in a Teflon jacket add to the performance. Reviews : User Reviews :.
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Content:
- Review and Measurements of DarkVoice 336SE Headphone Amp
- Warranty & Support
- Upgrading the Bottlehead Crack Headphone Amplifier: A Comprehensive Guide
- RadioShack
- HeadAmp GS-X mk2 Balanced Headphone Amplifier / Pre-Amplifier
- Woo Audio WA3 Tube Headphone Amp / Preamp Stage 2016 Black
- WooAudio 3 Headphone Amplifiers
Review and Measurements of DarkVoice 336SE Headphone Amp
CNET editors pick the products and services we write about. When you buy through our links, we may get a commission. What's important is that it just sounds amazing.
Woo Audio hand-build and hand-wire ultra high-end headphone amplifiers using vintage valve amplification. Whether valves are better than transistors is like asking whether dogs are better than trees -- it's down to preference, and ultimately, what sound you're after.
But a headphone amplifier is highly recommended for higher-end headphones, just as a p plasma HDTV is recommended if you're buying Blu-ray discs. Design Each hand-built WA2 is as stunningly impressive visually as it is tank-like in its construction.
The entirely anodised-aluminium chassis has been meticulously designed and built with care, but does get fiercely hot thanks to the burning-hot tubes. Fatman's iTube came with a removable metal cover to shield you from burns or knocks, but the WA2's tubes offer no such protection. A single 6. The tubes themselves come in separate boxes when the amp is delivered and must be fixed manually. It's easy, and allows for an upgrade or replacement in the future.
Woo Audio also offers various tube upgrades at the time of the purchase order. Features This isn't an amp for your average earphones , as most are designed to be portable and powered by low-power devices such as iPods. The WA2 is geared towards full-sized hi-fi headphones with impedance values between Ohms, and it'll handle frequencies between 8HzkHz.
Four pairs of stereo RCA inputs live around the back of the system which can be selected with one of the aforementioned huge knobs up front, letting you wire up a CD player, DVD system , docked iPod and laptop , concurrently.
Well, since you asked, an integrated valve-based pre-amp -- and a pre-out option if you want to send the pre-amp signal to a separate amp. This is unusual for headphone amplifiers, but with the combination of multiple inputs and the functions of a valve-based pre-amp, you get a glimpse at the bonuses the WA2 offers over similarly priced competition.
And of course SACD was used where possible. The hype this amplifier receives is highly justified, with truly divine sound quality across the board. Its deep, powerful performance with the HD s were particularly enjoyable, along with the K s and both Denon models mentioned.
If we had to pick a single word to describe the Woo Audio experience, it would be 'luscious' -- deep, smooth bass, rich vocal reproduction, and a sweet, spacious, notably airy treble that's smashing for live classical performances. Listening to Mary Black's studio performance of Columbus , for example, was one of the defining moments when testing the WA2. Not only was her naturally beautiful voice delivered more perfectly than we've heard before, but every aspect of the recording was too good not to grin to during listening.
The double bass produced notes astoundingly deep at times, yet remained under perfect control, and the hi-hats, violin, guitar and delicate drumming were spine-tingling in their clarity and presence.
But our listening wasn't restricted to music typically enjoyed through gear like this -- we listened to just as much hard dance, brutal death metal, even classic recordings of Balinese gamelan, as we did jazz and the entire career of Pink Floyd.
There was nothing we found the amp couldn't handle as well as other amps, but many it could handle significantly better. Feed it vocals, jazz, orchestral, soul, folk, country, easy listening, even R 'n' B, hip hop and dance, and you're in for a treat. Conclusion We're used to to the sound of our most highly rated headphones through our existing, impressive-in-their-own-right amplifiers, but the WA2 breathes phenomenal new life into even the greatest headphones on the planet, our favourite for use with this setup being the Sennheiser HD s or Denon AH-D It may not rise to the greater heights reached by the more costly Woo Audio gear, but at this price point it blew away everything we've ever heard.
Highly recommended. Pricing Not Available. The Good Best performance we've ever heard at this price point; stunning design. Gets extremely hot; no protection for valves. The WA2 breathes phenomenal new life into even the greatest headphones on the planet. The Woo Audio 2's fragile valves are unprotected and get very hot.
The WA2 loves all your musical sources, with four inputs to prove it. Switch through sources with a large, robust aluminium knob which is very user-friendly. The beautiful aluminium finish makes it look elegant and features indented lettering. It's not a small amp, so be prepared to lose some shelf space. The rear layout is simple but full-featured.
Warranty & Support
This is an ever-evolving list. Actually when I received the xDSD last year, I thought that device would make it as a standalone portable amplifier because of its form factor and lightness. A couple of months later iFi announced the xCAN as their new portable amp. This amplifier is in the same high-end category as the Duet is. On the other hand it does have an EQ system. Probably not.
Upgrading the Bottlehead Crack Headphone Amplifier: A Comprehensive Guide
By Bidoux , July 27, in Headphone Amplification. Since I saw a pic of the board, I was wondering if it is worth it to "clone" as a DIY project the amp. I found two very useful pics of the inside. Based on it, I tried to fill in the parts:. Is it a AC coupled amp? The two closest cap from the potentiometer are input caps and i'm wondering if the two electrolytic caps close to the 1W resistors are output caps. Also, I don't know the name of the componant below the left 1W resistor. There are two of them.
RadioShack
Hybrid Amplifier Circuit takes this one step further, enhancing its precision and sound quality with an analog feed-forward amp. The analog amplifier corrects the conversion error caused by switching amplification. To achieve ultimate sound reproduction, S-Master HX digitally amplifies the music signal without any resulting transmission loss. However, at the final stage of amplification, the physical limits of the semiconductor unavoidably cause distortion: there has to be a trade-off between the high power and high speed response.
HeadAmp GS-X mk2 Balanced Headphone Amplifier / Pre-Amplifier
CNET editors pick the products and services we write about. When you buy through our links, we may get a commission. What's important is that it just sounds amazing. Woo Audio hand-build and hand-wire ultra high-end headphone amplifiers using vintage valve amplification. Whether valves are better than transistors is like asking whether dogs are better than trees -- it's down to preference, and ultimately, what sound you're after. But a headphone amplifier is highly recommended for higher-end headphones, just as a p plasma HDTV is recommended if you're buying Blu-ray discs.
Woo Audio WA3 Tube Headphone Amp / Preamp Stage 2016 Black
Introducing the classic design inspired Spirit Torino headphones from Italy. Campfire Andromeda. With a circuit that has evolved and matured over a year period, the GS-X Mk2 is the most powerful, linear, and transparent amplifier that we have ever produced. Pushing up to 6W of class-A power into balanced headphones, the GS-X Mk2 can tame the toughest headphone loads on the market, while its' low-noise circuitry delivers an equally brilliant performance with sensitive in-ear monitors. In addition, the GS-X Mk2 makes a fine preamp for your stereo speaker system. The GS-X Mk2 is a carefully handcrafted piece of audio equipment, with painstakingly matched components, and the highest standards for build quality in the business. Every GS-X Mk2 is tested extensively throughout the build process, as well as before, and after an extensive burn-in process to ensure the best possible performance.
WooAudio 3 Headphone Amplifiers
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Guys, this is the famous, B-based, gigantic overkill, wallet-squashing, hell of a tube amp from WooAudio. Yep, the grand daddy of headphone amplifiers. A friend of mine stopped by with his brother to audition the Woo Audio WA5. Cause once you go for a listen, there is no going back.
They are two completely separate, but matched, mono amplifiers. Now it's no secret that the world of audiophile hi-fi sound systems can be a place of strange voodoo and esoterica - where the Law of Diminishing Returns becomes a way of life for deluded males of a certain age never women it seems but let's check our cynicism at the door for the moment. Woo Audio has been hand-building high quality tube amplifiers in New York since Tube amps are prized by hi-fi aficionados for their warm, enveloping sound and the sweetest circuit type of all, un-coincidentally the simplest, is called a single-ended triode SET , and it is just this type that Woo specialize in. The downside with amps of this nature is that they are quite low powered, so Woo Audio has been producing primarily headphone amplifiers where this isn't a concern. Paradoxically, because a simple circuit means that tweaks and variations are easier to implement, using the very finest individual components possible makes these amplifiers potentially more expensive than a more complex, but mass produced, design.
Adapter Headphone Impedance: ohm. The Amp Ultimate — Pure balanced integrated amplifier. The schematic is very straightforward.
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