Tecon Model 55 Tube Amp For PC Review

Audio/Speakers&Amps by KeithSuppe @ 2009-01-09

Tecon Model 55 is an integrated SET amplifier, SET standing for Single Ended Triode. The euphoric sound produced by SET (vacuum tube) amps is often compared to that of OTL amps. Sans the transformer, Ouput TransformerLess amplifiers are highly regarded as a purest since little stands between the vacuum tube and Listener. The Model 55 is a rare find for at least one reason, its $398 price tag

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Testing & Conclusion

Test Methodology and Conclusion

Madshrimps (c)

Pictured above in a custom flame finish, Lovecraft Designs (aka Cain & Cain) Abby mated quite well with the Model "55" and the Amp One from GLOW Audio also under review at this time. The Abbys are highly effcicient (94dB), designed around a single Fostex FE166E driver and for smaller rooms the Fostex FF 165 k we were supplied with the latter. Given this is a single driver or crossover-less design (eliminating additional devices from the signal path) the frequency range between 45Hz ~ 20kHz is a respectable figure. Abbys cost around $1500. For those wanting more bass in their floor standing speaker, I spent some time researching Decware. This is a well established High End manufacturer who offers a full line of tube amplifiers/cd-players as well as loudspeakers and what must be the least expensive silver Litz interconnects with silver connectors (around a Bees Wax core) $159m and 10AWG silver plated copper power cord $159 1 1/2m. I wrote Decware requesting their Decware MG944 floor standing Transmission Line (MTM) loudspeaker, frequency rated between 22kHz ~ 28Hz, 94dB efficient and at a cost of $849 one of the best values I've ever stumbled across. I wrote Decware requesting a pair, and they explained these are speakers they basically sell at cost as an introductory product. This is to your advantage, its unlikely I'll see a pair for review and of course Audiophile products are rarely left with Reviewers.

Madshrimps (c)

Test System
CPU Intel Quad-Core Q6600 Kentsfield (SLACR) Socket-775
Mainboard Gigabyte X48T-DQ6 (BIOS F5)
Memory Patriot Viper DDR3-1600 2x1GB (CL7-7-7-20)
Graphics BFG 8800 Ultra OC Edition (630/1100) PCIe
Power Supply PCPower&Cooling TurboCool 1200W
Cooling D-Tek Fuzion S-775 cpu cooler, Danger Den Black Ice Xtreme III triple radiator, 3x12cm Sunon fans (98CFM), LAING D5-38 Vario (setting #5) 1/2ID Tygon
  • Decco 50W hybrid integrated amp (USB-DAC Phillips TDA1541)
  • Tecon Model 55 single ended integrated amp (USB-DAC Burr Brown PCM2707)
  • GLOW AMP-1 valve integrated amp (USB-DAC C Media-102S)
  • Cain & Cain Abby single driver loudspeaker
  • Era Design 4 stallite loudspeakers
  • Zu Audio Julian speaker cable
  • Unity Audio Basic Link speakers cable
  • Unity Audio Solid Link speakers cable
  • Oyaide Tunami Nigo speaker cable
  • Unity Audio Basic power cable
  • Oyaide Tunami power cable
  • Operating System Windows XP SP3

    How We Test:

    Testing is one of the more controversial subjects in the Audio industry. While the majority of mid-fi or mainstream products are rarely given a thorough listening test with detailed performance descriptions, this is due largely in part on the music industry. Since the advent of Digital sound music itself has become homogenized beginning in Recording Studio's themselves. While not uniquely American for the most part loud Bass, extended highs and mangled midrange has been the hallmark of American Pop. This coincides well with cheap speaker drivers, solid state amplifiers and a desire for volume rather then content. The majority or average consumer will or has never heard a live performance beyond their High School band and the brain is shaped by its environment. I won't get into psycho-acoustics or psychology except to say our personal mosaic are shaped by our environment. A younger more aware generation have a world of music at their fingertips and this is where amps like the Model 55 are invaluable.

    Why would anyone go out and spend $389 on an integrated amp? You could spend more on a video card, however; investing in the Tecon would literally change how you hear music. The video card might give you a couple extra FPS, but its not really going to have the impact a SET amp with on-board DAC might. Since the advent of the PC and even disregarding this cultural catalyst, most people have little to no exposure to live musical events during their life, especially their early years. No one is interested nor seems to have time for live music events and who can blame them given the fact many bands actually try to emulate the POP noise we're accosted by daily. Very few reading this have ever heard a sound system reproduce true three dimensional sound, midrange that replicates a singer's voice as if you were in the same room. Or hear spatial dimensionality breathing life into a 'live" recording. Beyond that a monochromatic artificially re-produced redundancy of Popular Music, we may have forgotten Music is actually the poetry of mathematics. You know you've "gotten" the Artist's message when you find yourself literally moved. Although ostracized by critics, one of my favorite (although terribly mixed) rock and roll classic's is Led Zeppelin's First Album. To hear a bad but still better than anything we have today, unique British Studio sound I recommend this early blues album.

    Tecon's Model 55 metamorphoses one extreme to another, taking the USB fed digital signal from your PC and transforming it into something entirely listenable. It extracts music's hidden soul. In so far as industry testing and designing there we are divided among the "Audio Engineer" seeking Objectivity and the Empiricist seeking a a satisfying Subjective experience. Essentially we have a Metaphysical argument in music. They balance on the fence of Epiphenomenalism with the Engineer or processed sound having the Powers that be behind it. Each party is adamant not realizing we depended on one another. As Robert Riesch quotes and critiques a speaker (named Jim) at a recent Audio Engineer Society conference in his article for Stereophile magazine Scientists vs Audiophiles. The article takes pace at an Audio Engineer Society gathering in which the main speakers "jim" is an avid (or rabid) fan of scientific approach, Robert Riesch makes the following retort:

    "According to Jim (our engineer), as sure as F=MA, there are no genuine golden-ear audiophiles. But for that belief to be grounded in science, he'd have to show that different metals and geometries in connectors (for example) cannot—on pain of logical inconsistency, or mathematical fallacy—create even slight differences further down the signal chain that might be audible to some individuals. Whatever equations Jim might use to prove his case, they'd have to include variables for currents, impedance's, etc., as well as variables representing ear drums, auditory canals, and nerves in all their variations within the human population. What Jim would need, in other words, is unified science—a consistent set of formulas reaching from electronics to psycho acoustics to demographics. But none exists...

    Those who so feverishly insist that science tells us everything about audio treat science as a finished product, a universal gadget that solves any problem, settles any dispute. If that's so, just what do real scientists do all day? They don't sit around picking lint off their lab coats. Any good scientist will tell you that there's much more in the world that we do not understand than we do understand."

    Two rhetorical questions follow: if "listening" is a poor way to measure audio hardware performance due to that nagging subjectivity and its pesky variables, how is it High End Audio companies survive? Thousands of tube, hybrid, or solid state amplifiers costing as much as an Economy car are found in sound systems from San Francisco to Liverpool. These people weren't abducted by Audio Research Aliens they simply have a penchant for AR hybrid sound. So why wouldn't everyone want this quality "live recorded" sound streaming into their homes? The biggest factor has always been cost, however; manufacturers such as Tecon have changed all that. The Model 55 costing just $389 was unheard ten years ago and while speaker mating might seem difficult there are many affordable models from $300 ~ $1500 which is miraculous to some of us whom know how difficult it is to design a musical speaker under $1,000. And the best thing is, you can remain a devoted PC-Enthusiast, since several of the amplifiers I'm testing are equipped with quality on-board DACs accepting your USB among other connects. The amount of music files now available online are huge as is Streaming Audio.

    Instead of describing several how this amplifier plays several songs from my collection you will probably never hear, I'll describe the Model 55 as the closest I've come to hearing live music without leaving my home. As George Reisch stated in his Stereophile article Sonic Qualia & Scientific Testing: Listening is active, not passive. With time and experience, we learn to hear more of what a component does. The Tecon Model 55 is the greatest value I found in over 20-years of Audiophile experience. Once the correct speakers are found it does everything right. The range of this little amp is amazing, from top to bottom it remains in control and this is not limited to putting all its finesse in the midrange hoping you'll ignore any short comings at both ends.

    There is full bodied pleasure in the 55, its ability to image and pinpoint each performer from thin air draws you into the experience. It is a bit unfair I had the Abby's as they are the quintessential match, they do however; cost just over $1k and at that price they compete with the likes of the $10k Teresonic Ingenious.

    Bottom line: there are speakers for much less which will do fine with the Model 55. This is the best integrated SET amp I've ever heard. Once you consider the internal USB DAC your PC has evolved into a true High End multimedia system.

    build quality

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    Comment from 4PLaY @ 2009/01/10
    Please forgive my ignorance, I do understand a little of what you were talking about but let's face it, im no audiophile, the PC though I understand, and I know traditionally it requires a soundcard to spit out audio, I know as well that an amp with vacuum tubes sounds magical.

    So how does this thing work, plug it in USB, and what? do I still need my soundcard? is this 5.1? will it play anything other than music, can I use it to for gaming. where does the audio processing take place? I know this sounds really noobish, but please humor me.
    Comment from Liquid3D @ 2009/01/16

    Nothing you said sounds "noobish." Actually these are great questions. IMHO anyone who loves music and is an electronic hobbyist is a Audiophile. Anyway the term can be a badge of honor or an insult, depends on the context

    The ethos of High End Audio and how a Single Ended Triode amplifier is designed and constructed could fill volumes, so I hope this helps.

    The Model 55 has a built in DAC and USB connect. This gives you the advantage of a highly musical external DAC as opposed to the very best soundcard which still makes it's home in the EMI saturated environment of the PC. I am willing to bet the very best soundcard cannot compare to any recent integrated tube amp with DAC.

    There are several advantages of owning a tube amp with built in DAC. Access to music: there is now an endless number of music files out there, and there is streaming audio as well. Depending on the Server you can downloading music files compressed using formats other then MP3 type. MP3 as a compression discards larger amounts of data then some and this makes the file smaller for economics and they know most people don't have a neutral Audiophile playback system. You don't have to be an Audiophile to hear differences in a song compressed using MP3 vs Lossless. As I stated above the point of file compression is economics and you store more music with MP3 then Lossless, but at a loss.

    Vacuum tubes have been hailed (arguably after solid state emerged) as the ultimate electronic device for reproducing sound. When a quality tube amp is matched correctly with other components (synergy is everything) the vacuum tube amp signature sound breathes life into recordings. In a SET design the circuitry is similar to what is known as a push pull except the vacuum tube interacts directly with the speakers.

    As far as Gaming and surround sound, most audiophile amps are designed for Stereophonic playback signals. I've gamed a few times using two speaker stereo set-ups and still enjoyed the "experience."
    Comment from cowzzwoc @ 2009/01/18
    I would absolutely love to have an amp like that. However, what i would really like to see is a comparison between the Xonar STX and the Omega Claro Halo sound card. Both of these cards are geared toward producing near audiophile quality sound while keeping costs down.
    Comment from Liquid3D @ 2009/01/20
    The point of these types of amps and the articles I'm doing is to get you to think "out of the box" where the D/A processing is concerned. The Tecon Model 55 has a very solid (more importantly Musical) DAC built in and using the USB means (in theory (since digital signals can be affected)) keeping the integrity of the digital signal in-tact. At least until it reaches a superior design such as the Burr Brown DAC found in the Model 55. Many external DAC makers choose from a number of older DAC's such as Burr Brown (Texas Instruments now) and Phillips based on their performance. Because a DAC (or music chipset) is new or has higher sampling frequencies has absolutely nothing to do with the end product, its Musicality.

    I used an example about DAC's engineers choose in another review, taking what is currently one of the most respected (and costly) DACs on the market designed by one of the most astute digital Audio engineers out there. The $15,000 Zanden 5000 Mk IV DAC. Just reading the Stereophile article about the DAC and Zanden transport (the transport runs $27,000) will educate you on the engineering extremes in High End and the price some will pay whom can afford it. People whom design such products are usually Music Lovers themselves and every product undergoes listening tests as the final determining factor. They design by ear. People whom buy such products love music and have lot's-o-cash, but not all. Some listen and buy $5k ~ $20K DAC's like some people go through bottled water, but not all. I think most wouldn't simply choose the Zanden because it cost more and they want to show off, such hardware MUST be carefully matched or the faults are more quickly revealed. How do I know this? I used to be a Audiophile and invested $20k into some of my systems and those were comprised of used gear. I eventually brokered Used High End gear which gave me access to some very exotic hardware.

    Anyway it wasn't the extreme in engineering, it was the performance (sound) that hooked me. Eeventually the Hobbyist in me found a love for both. When you read about the Zanden, how the chips were used you understand there's more to digital processing then installing the latest chipset and thinking it's the best. Why? Because the DAC in that $15k Zanden are circa 1985 (no longer made since 1990's!) NOS (New Old Stock) Phillips 1541A chipsets. Of course their hand selected because anyone who thinks chips don't perform differently has never overclocked a CPU or GPU of the same make and model, different manufacture dates. But what is amazing are how he engineered and used what most would see as an antiquated DAC. The concept is, we haven't fully exploited 44Khz so what's the point of getting so far ahead of ourselves.

    I'm not saying PCI- slot cards or internal cards don't sound better then one another, and the sound can't be good, but its only as good as the rest of the system, the powered speakers. It won't matter what card you use if your limited by your speakers, or vice versa.

    Now if its Headphones your interested in, thinking this card will breathe new life into a pair because they placed an op-amp for Headphones on the card is not the answer. You can buy a Tube-stage head amps for little more then the $200 Xonar which will completely eclipse it's performance. In many circumstances with soundcards people pay for features they won't even use. How many do you think have truly great sounding 7.1 surround.

    Most music is encoded in stereo, an amp like the Tecon or any stereo vacuum design brings you back to basics in this respect, and I can attest surround sound doesn't touch stereo unless the system (speakers and multi-channel amp) are made by a company like Meridian. Problem is such "all" digital systems are very costly.

    With a $389 SET amp and a pair of $400 speakers you can access unlimited music in its digital form and hear that music through a true Audiophile level system. Since D/A conversion takes place externally from the PC its "cleaner" by definition.

    Have you ever heard a PC-Audio system image? I have written sound card makers, but at present I don't have what I'd call High End sounding externally powered speakers. I purchased my Audioengine 5's as seen in my review and they may interest you. I can recommend other powered speakers and all you need is a decent Turtle Beach Santa Cruz and it still best a system with a Xonar and mediocre speakers.

    Until you've heard a true High End system (even if its beyond your cost) to understand what Audiophile level sound is, its impossible to share that experience by writing about it. I know I've failed in this respect. If you can take a few moments to find a high end shop were they know what their doing, and are willing to give you some air time that would help. Its like anything else, for example ice-cream. Until you've had fat rich all natural Ben & Jerry's or Haagen Daz, Hood ice cream may taste great.

    Hearing each performer in their perspective place as if they were in the room changes any music lover. You should never "hear" sound coming from the speakers, technically the speakers (no matter how large) should vanish, get out of the way of the music they are producing.

    This depends on many factors, how the music was recorded being foremost. Today so much POP is recorded on separate tracks then mixed, a High End system will only reveal this and the sound will be surreal because it is. Live microphone recordings will sound best on High End gear. High End is a double edged sword, like an Addict who experiences self-actualization (self honesty) its impossible to go back and enjoy the old experiences.

    With soundcards you need powered speakers. And even with the best placing an amplifier in any speaker is inherently risky because of the vibrations, or sound waves especially reverse.

    I will however find out more and get back to this thread as to which card is superior. I can tell you straight off the Omega Claro Halo probably wins for cost v. performance, but I'd hope you would read the article I linked above because it expands your knowledge. Once you read some other articles at Stereophile you'll be amazed at that hobby I'm sure.
    Comment from cowzzwoc @ 2009/01/20
    i really have fallen in love with the audiophile hobby. i've been reading reviews from 6moons and stereophile left and right. But, it will be several years before i can ever hope to have a high end speaker set up.. college and graduate school are going to be the primary focus of my budget for the next 5-7 years.

    i'm pretty much limited the best headphones + soundcard/amp setup i can get for around 400 dollars.

    i just upgraded from my old sennhauser pc150 gaming headphones to my grado's and the difference is breathtaking.

    i love going to the only truly high end audio shop in New Orleans "wilson's audio" and listening to their audiophile setups.

    i just want to get as close as i can with my extremely limited budget. the xonar stx and the claro are both probably leagues ahead of my current xfi solution.

    is it worth paying the extra money for an amp like the tecon when the only headphones i own are a pair of sr60s? like you said the quality of the sound is only as good as the weakest link.

    im just worried that getting a SET amp like the tecon would be overkill

    and for the recored, i HATE pop..

    i listen to mostly jazz, classic rock and classical, although i have a soft spot for funk and blues
    Comment from Liquid3D @ 2009/01/20
    Given your musical tastes and your ancillaries (headphones) I think the $389 price-tag for the Tecon Model 55 (shipped in USA!) would not only be a great investment for you, it will be a leap in performance! I truly can say this is currently one of the top ten best buys in all of High End audio. When it was $800 it as a good buy. I don't think their going to make anymore and are depleting stock at this price. I wouldn't let the opportunity get by. I don't say that lightly. I've been into High End almost 20-years.

    I first fell into buying used stuff (couldn't afford new) when in circa 1990 I listened to a pair of Krell monoblocs driving Apogee Stages (full-range ribbon speakers that would drop below an 0.1 Ohm) and found myself with an Aragon 4004 stereo amp (budget Krell same designer) driving Apogee Centuar Minors in my home a week later. The Aragon just didn't compare with the real Krell even with a Meridian CD-transport / DAC-pre-amp combo so I went to the Krell KSA 250. When I finally found the Sony X777ES ($3,500 new in 1990) which someone traded in, I was in heaven. This showed me digital sources are very different and the difference beyond the build quality of course is cost.

    Then I heard a pair of VTL mono-block vacuum tube amps and immediately traded in my Krell and went all tube. I'd NEVER go back unless it was a PASS Labs amplifier or maybe a Threshold Stasis. I've listened and owned many different solid state amplifiers from Bryston, Aragon, Boulder and Threshold to name a few and for vacuum tube amps Cary, Sonic Fronteirs, Audio Research, Melos, Audible Illusions, Magus, and a pair of prototype NYAL (Futtermen built) OTL monoblocs which were in my last full range system.

    I can attest the Tecon is right up there in build quality and sound quality with these amps, and its DAC is very good using the Burr Brown PCM2707 chipset. This list of DAC chips is a great resource, it's arranged by cost of the external DAC or Soundcard and will exempplify which DAC chips are used in which products to give you an idea. You'll find Burr Brown and Phillips probably dominate the list in the high end range.

    Of course every tube amp has different characteristics and I have not listened to the Headphone jack on the Tecon. When I was deep into High End, integrated tube amps were very rare (at least decent or inexpensive ones), today there are designers taking advantage of Eastern Manufacturing costs which is why there are several out there, including the GLOW Amp One which I'm done testing. Of course the draw back to any SET amplifier is speaker mating. It's possible 5W per channel can fill a very large room with large sound if mated to the right speaker, a highly efficient speaker, but probably a costly exotic Horn. Problems can arise finding highly efficient speakers because of cost and many lack deeper Bass, so there can be trade offs. But I'm working on a match right now, because the Cain & Cain Abby's I mated with this amp retail for $1500. But driving headphones will be a breeze (in most cases) for the Tecon Model 55.

    If I were you I would invest in the Tecon for $389 shipped in the USA it's USB fed Burr Brown DAC gives you access to all musical files in their digital form. Removing the Digital to Analog process which is why the Xonar and other cards like the Razor soundcard have sheilding. I will say the fact the Xonar STX is sheilded and uses Burr Brown PCM1792 DACs bodes well for soundcard, but its still in the box and as you know inside every PC is a EMI storm.

    The op-amp for driving head-phones is also a great feature since its rarely ever been done to this extentso I can see why your excited about it. As I said earlier DACs don't mean anything because sampling to 192Khz has little to do with the potential musicality of the hardware.

    The Tecon is a single ended vacuum tube amplifier and as such its goal is music reproduction. The Tecon uses Burr Brown PCM2707 DACs (probably sound better in stereo) and between the two the Tecon should out perform the Xonar by a mile.

    Lets not forget about the source, its great to have worthy DAC but if the music-file itself is hinky thats what your amplifying. MP3 files v. Lossless is what I mean and finding Audiophile grade music Servers which offer AAC or Lossless files will undoubtedly make a difference. The better your hardware the more revealing so as I said its a double edged sword.

    Given the music you listen to I'd say tube amplification is just what you need and the USB connect as well as RCA inputs give you so much more versatility then a PC-card when you can eventually afford a decent pair of speakers, although they will be limited in the Bass region. As you spend more time in High End you'll find it's very rare you find a system capable of producing Bass down to 20Hz, at least not without spending large sums of money. Most people don't realize how low 20Hz is and what it takes to "move that much air." Getting back to speaker matching for the Tecon, there are plenty of great speakers which will go down to a true 40Hz at around $1800 (were talking high efficient 100dB one watt at one meter). I'm looking for decent (with decent Bass down to 40Hz) speakers for the Tecon which run at around $400. I was looking into these from AV123 the x-mtm which are 90dB efficient at 8 Ohms. Their a little more then my $400 goal, but at $600 your getting floor standing with a D'Appolotto Bass/Midrange and tweeter, and these speakers as well as the site attracts many DIY Audiophiles. They want me to test a new amp Class-D the Gizmo V.1 25W (only $110) with a new tower speakers similar to the x-mtm's pictured below.

    Comment from jort @ 2009/01/22
    Originally Posted by Liquid3D View Post
    It's been a while that i saw you here

    How are you ?
    Comment from Liquid3D @ 2009/01/23
    Things have been very tough. These have been the most challenging years of my life. I moved from Newport R.I back to my home in Connecticut to take care of my Mom whom has stomach cancer and diabetes (among other ailments). The hardest part has been trying to get her to follow her diet.. I also dislike Connecticut very much, I guess its quaint, even picturesque with its old tobacco barns in disrepair, but the Southern part is a bedroom community of NYC made, old money. The North Eastern half is country and Country Music plays on the Radio out there. No real mountains, no real ocean (well there's Long Island Bay) but there's plenty of cars, pollution and more cars. Everything I escaped from back in 1986.

    Since leaving I have been fortunate to find each place I've lived over the years (with the exception of Hawaii) have been towns so small you don't need a car. And all were either by the open Ocean or eclipsed by mountains. I can't surf, or ski anymore because of my spinal injury, but being surrounded by nature instead of people is definitely preferable. I want a home in Bar Harbor Maine. I am no longer a Materialist (except for my current philosophical stance).

    I don't have children but I now know what it's like to really worry about someone.

    Thank you for asking, how are you?
    Comment from jort @ 2009/01/23
    wow what a journey :O

    it's Ok with me, i sadly quit overclocking and super chilling methods....

    I live on my own now for about 2.5 years and i am self employed in the insurance business, pensionsavind and healthinsurance.... totaly something different but does it matters ?

    See you around next time, sometimes i have the feeling what it would be like to still overclock pc's and play with ln2...

    grtz !!
    Comment from Liquid3D @ 2009/01/23
    I prefer living alone, how do you like it?

    Since moving here to take care of my mother, I rarely get calm "alone" moments where I can center myself. In Newport I could take a walk to the Ocean or Bay both 2 ~ 5 minute walk. I never required an auto in Newport and avoided sitting in traffic which has to feel like the single greatest waste of time ever. Connecticut is a traffic nightmare on the seaboard (I-95), it's the typical bedroom community for Rats in the Rat race. Here we exemplify extremes of Capitalism, Materialism, and the circumlocutory effects of an "addictive society" on the family. Quite a mouthful (somethings change slowly).

    As a hobby High End Audio is most exciting and an endless number of exciting designs out there of which a music lover and electronics enthusiast would find fascinating. And your listening experience will become just that, an active experience opposed to just hearing music.
    Comment from 4PLaY @ 2009/01/28
    Originally Posted by Liquid3D View Post
    As far as Gaming and surround sound, most audiophile amps are designed for Stereophonic playback signals. I've gamed a few times using two speaker stereo set-ups and still enjoyed the "experience."
    Whew! thank you for explaining things to me, it does clear up a lot of things. Ok so far here's how I understand it now. This will serve as my soundcard only it's via USB.. correct? so all audio processing will take place on the Tecon? or Porcessing will take place on my PC and just spit the information out via USB for the Tecon to amplify?
    Comment from Liquid3D @ 2009/01/28
    Hello thank you.

    Yes ALL processing take's place on-board the Tecon Model 55 via a Burr Brown DAC, there's no need to worry about software. All you do is go into Windows and choose USB as the Audio Device. That's it no software or hassle. It doesn't matter if the music files are stored in MP3 or another format. This product elinimates the need for a soundcard. If however you have a soundcard with RCA left and right outputs, or a 1/8" jack adapter cable (1/8" into RCA left/right) analog you can use that soundcard for D/A conversion and use the Amplifier's RCA inputs.

    Its so easy to connect and run just like "butta."