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    Berkeley Audio Design Alpha DAC Reference Series Review

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    Rarely do I hear a component that's truly a game changer, a component that's so good I can't stop listening through it, and a component that's so good it renders much of the competition irrelevant. I can't remember, off the top of my head, the last time I heard such a component. That is, before the Berkeley Audio Design Alpha DAC Reference Series arrived. The Alpha DAC RS, every bit a true game changer, blew me away from the first listen in my system. Since its arrival I've listened to more complete albums and heard more new sounds from old albums than any time in my life. The Alpha DAC RS is so good and such a game changer it may force consumers to reconsider their desire for high resolution music. Sure the Alpha DAC RS can reproduce high resolution music better than any DAC I've heard in my system, but its absolute magic can be heard with standard CD quality 16 bit / 44.1 kHz material. The Alpha DAC RS is without question the best DAC I've heard anywhere when it comes to 16/44.1 playback. I've never heard detail, delicacy, and transparency with my favorite music like I have when listening through this DAC. The Alpha DAC RS is so outstanding that I equate its presence in my system to that of a new pair of loudspeakers. That's correct; the Alpha DAC RS had an impact on my system equivalent to a new pair of loudspeakers. In fact, the Berkeley Audio Design Alpha DAC Reference Series is the most remarkable sounding product I've ever reviewed. [PRBREAK][/PRBREAK]

     

     

    Alpha DAC Reference Series

     

     

    The Berkeley Audio Design team is well known for pursuing perfection of performance and producing peerless products. The original Alpha DAC is considered by many to be the best $5,000 DAC money can buy. The company's subsequent USB to AES converter has been unequalled when it comes to sound quality and electrical isolation in D-to-D converters. Pushing boundaries and shooting for unparalleled performance is not an easy task and frequently takes quite a bit of time. Such is the case with the Alpha DAC Reference Series. According to Berkeley Audio Design's Michael Ritter, the Alpha DAC RS contains proprietary parts that didn't exist prior to the creation of the DAC. During the initial design stages of the RS 'Berkeley' asked several manufacturers to build certain parts to its specifications. All but one of the companies said no because it was difficult to build and there was no market for such impeccably spec'd parts. In addition the cost of the parts ended up being 40x greater than parts used in the Alpha DAC Series 2 or the Alpha USB.

     

    Internal parts are but one piece of the Alpha DAC RS puzzle. The other major piece is intellectual property. 'Berkeley' previously made a $5,000 DAC sound as good as or better than many DACs costing several times more money. To do this requires the intellectual know-how that other DAC manufacturers, who just assemble parts and follow chip manufacturers' app notes, simply don't have. Talking to Berkeley's lead Engineer Michael "Pflash" Pflaumer, it's clear that the Alpha DAC RS contains engineering wizardry and original ideas that the previous 'Berkeley' products don't contain. The Alpha DAC RS isn't a sibling of the original Alpha DAC, rather it's a close cousin. Both DACs have the same designer, but the Reference Series is so above and beyond that it's in a league of its own. This time, using a mix of proprietary parts and vast intellectual property, Berkeley Audio Design has created a $16,000 DAC that may be the best in the world at any price.

     

    One of the strengths of the Alpha DAC RS that make it such a great component is its ability to playback standard resolution (16/44.1) material better than any DAC I've heard. According to many DAC designers, playback of standard resolution is where the rubber meets the road, not only because the vast majority of music is released at 16/44.1, but because it takes considerable expertise to develop digital filters for CD quality material. This is where Berkeley Audio Design excels. Michael "Pflash" Pflaumer's digital filter mastery is the stuff of legend in high end audio. One only needs to listen to the Alpha DAC RS at 16/44.1 to hear Pflash's superior skills shine. There's no chip a manufacture can purchase and implement that comes close to replicating 'Berkeley's' custom filtering technology.

     

    Now for the fun part, telling the world how the Alpha DAC RS sounds with some of my favorite music. The RS single handedly sent me into a Natalie Merchant binge that lasted a couple weeks. I couldn't stop listening to Natalie's new self-titled album and her Motherland release from 2001. Both albums are the standard issue, released at 44.1 kHz and not remastered. The detail and delicacy brought out by the Alpha DAC RS on both albums is unparalleled. For example, the track Maggie Said from the 2014 Natalie Merchant album has incredible separation and delineation between instruments. So much so that I can't get this good of sound even through my Sennheiser HD600, Audeze LCD-XC, or JH Audio JH13 in-ear monitors. The first track on the album, Lady Bird, opens with a delicate drum roll. Listening through other DACs and even through headphones, the drums tend to sound like paper, as if the drummer is striking a couple sheets of loose leaf paper from the Dollar Store. Through the Alpha DAC RS it's possible to hear the texture of the drum heads. I'm willing to bet any competent drummer could identify the exact drum kit, and even the sticks used by the drummer, after listening to this track through the Alpha DAC RS.

     

    Continuing my Natalie Merchant kick, I spent countless hours listening to her Motherland album. Track two, titled Motherland, features a guitar, banjo, accordion, and some of the richest sounding vocals Natalie has ever produced. I've never heard this track sound so good and Natalie's vocals sound as wonderful as I have when listening through the Alpha DAC RS. The delicate accordion comes and goes in the background landing like a butterfly with sore feet. The banjo and guitar have terrifically distinct sounds that can be heard even at the lowest volumes through the 'RS'. In fact, I've never heard a DAC excel more at low volumes than the Alpha DAC RS. Listening to the entire Motherland album I kept the volume at such low levels that the crickets outside my listening room drowned out the quiet passages more than a few times. This is in stark contrast to listening through some DACs that lack resolution and force the listener to turn up the volume a notch for every track. After an hour of listening one's ears are tired and ready to retire for the evening. My experience with the Alpha DAC RS couldn't be more the opposite. I never wanted to stop listening once during the entire review period.

     

    Classical music isn't traditionally one of my favorite genres. However, when a component like the Alpha DAC RS is placed into my system I feel the need to listen to all of my music as if it was all new. During this review I frequently said to myself, "I wonder what X or Y sounds like through the RS." It was as close to the kid before Christmas feeling as I could have as an adult. Thus, I played the Kansas City Symphony's Britten's Orchestra recorded and released at 24 bit / 176.4 kHz by Reference Recordings. This album demonstrated the Alpha DAC RS' ability to reproduce transients like no other DAC I've heard. About 4:20 into the track Passacaglia things get real interesting. The horns start out quite delicate augmenting the string section that is building the scene. By 5:30 into the track the horn section is leading the way in the most transparent sounding symphonic reproduction I've yet heard. At 5:45 into the track the deep horns start to snap and the drums create an incredible sounding crescendo. Then all is quiet with the exception of a soft and delicate string section in recovery from the event that just took place. Throughout the track the Alpha DAC RS appears to only reproduce the music. There's no memorializing of an event after it happens and there certainly are no rounded edges of transients. This DAC starts and stops like no other.

     

    Organic and transparent is how I describe listening to Jack Johnson's Brushfire Fairytales through the Alpha DAC RS. This isn't the most well recorded album, but through the 'RS' something magical comes out of each track. The Alpha DAC RS isn't adding anything or forcing a Hi-Fi signature on the album, rather more sounds and nuances are coming through now than ever before through any other DAC. The track Flake features a very soft steel drum in the left channel and acoustic guitar in the right channel at the beginning. The guitar sounds incredibly organic and realistic while the steel drum smoothly floats in the background with its soft presence. Through less resolute DACs I frequently turn up the volume during this part of the track because I can't hear the steel drum enough for my liking. Through the Alpha DAC RS the steel drum magically comes through appropriately soft but appropriately present. It's really magical to hear these seemingly antithetical (soft / present) characteristics come through with delicacy and transparency like never before.

     

    Closing out the review period I wanted to push the bass limits of the Alpha DAC RS. What I had heard up to this point was incredibly tight and deep bass from more traditional sources like rock and roll and jazz. It was time for a little Jay Z, one of my favorite hip hop artists of all time. Jay Z's MTV Unplugged (with the Roots band) is a great sounding album but it doesn't have the bass of the Magna Carta... Holy Grail album. After warming up with MTV Unplugged I switched to track Holy Grail featuring Justin Timberlake. A synthetic piano and somewhat synthetic sounding vocal start the track before a huge bass beat kicks in. Under the right conditions I'm sure one could blow woofers into a listener's lap. Fortunately the track isn't just a bass monster / demo track. The deep beat is great as are the lyrics with a sample of Nirvana's Smells Like Teen Spirit. The Alpha DAC RS puts out the deepest and tightest bass of any DAC I've yet heard. Listening to this deep tight bass gave me a similar feeling to listening to soft and present steel drums from Jack Johnson. The deep bass was omnipresent as it was supposed to be, but it wasn't overpowering. Jay Z's and Timberlake's vocals were clearly audible and intelligible as were the plethora of other sounds going on in the track. Chalk this magic up to the Alpha DAC RS and its brilliant designer Michael "Pflash" Pflaumer and the rest of the 'Berkeley' team who took part in creating the best DAC on the market.

     

     

    Conclusion

     

     

    The Berkeley Audio Design Alpha DAC Reference Series is a DAC for the ages. Delicacy, detail, and unparalleled transparency are hallmarks of the RS. Reproducing soft yet present background instruments as clearly as the lead guitar is something only the Alpha DAC RS has done in my system. This DAC is capable of hooking the listener in to hours long listening sessions even at the expense of getting other work done. In other words, the Alpha DAC RS reproduces addicting sound. The Reference Series is what the term "game changer" was meant to describe. It's a PCM only DAC that renders most other universal DACs on the market irrelevant. Irrelevant because they cost more and don't sound as good. A DAC that can make standard resolution (16/44.1) material sound as good as high resolution is a true game changer. The advanced digital filtering algorithms created by Berkeley Audio Design do exactly that with 16/44.1 music. I know of no DAC available today that can reproduce Redbook CD content as well as the Alpha DAC RS. Period. If I could afford it and my job allowed it, the Alpha DAC RS is the only DAC I'd use for the foreseeable future.

     

     

     

     

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    Product Information:

    • Product - Berkeley Audio Design Alpha DAC Reference Series
    • Price - $16,000
    • Product Page - Link

     

     

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    Where To Buy:

     

    The Audio Salon

     

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    Ciamara

     

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    Chris,

     

    Having heard the BADA Series 2 and talking with Maier, I'm not surprised by your findings.

     

    I very interested in how the RS in your current system compares to the Devialet.

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    Hi Chris

     

    Am traveling on the fast train to Seville and reading your review

     

    Since there is very little technical in your review I assume this review is about how it sounds

     

    I am glad for you that you enjoyed the sound

     

    However for me I have some concerns from your own description

     

    You mention listening to Benjamin Britten' s " Passacaglia" I assume from Peter Grimes or orchestral only version Opus 33 b

     

    You mention hearing " deep horns " come in...

    I am left confused what you mean by this

    are you referring to a low note from the horn section or a trombone or tuba which would be on opposite sides of the sound stage usually

     

    Deep horns or " Wagner " horns are not scored for in this work?

     

    Were you unable to tell the difference timbrally or do you just not know how each instrument sounds quite different ?

     

    Also what does your use of "memorializing" mean I personally had no clue what you meant there ...

     

    Thanks Chris :)

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    'Berkeley' believes adding a USB input compromises the sound quality so it was left out of the Reference Series product. These guys have been leading the way with computer based playback for years. I don't suspect many people use CD players with 'Berkeley' DACs. Servers like the Aurender offer AES and S/PDIF outputs and the Alpha USB can be used to connect any computer to the Alpha DAC RS.

     

    Besides the Rendu, did you get the change to try it with the Aries?

    I would like a comment from you if you felt there was any difference in sonic presentation...

     

    Thanks!

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    Chris,

     

    Having heard the BADA Series 2 and talking with Maier, I'm not surprised by your findings.

     

    I very interested in how the RS in your current system compares to the Devialet.

    I just swapped out the RS for a pair of Devialet 400 monos (for review) :~)

     

    Very different all around.

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    Besides the Rendu, did you get the change to try it with the Aries?

    I would like a comment from you if you felt there was any difference in sonic presentation...

     

    Thanks!

    I really didn't try it with the Aries more than for a couple minutes testing bit perfect output of the Aries.

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    Hi Chris

     

    Am traveling on the fast train to Seville and reading your review

     

    Since there is very little technical in your review I assume this review is about how it sounds

     

    I am glad for you that you enjoyed the sound

     

    However for me I have some concerns from your own description

     

    You mention listening to Benjamin Britten' s " Passacaglia" I assume from Peter Grimes or orchestral only version Opus 33 b

     

    You mention hearing " deep horns " come in...

    I am left confused what you mean by this

    are you referring to a low note from the horn section or a trombone or tuba which would be on opposite sides of the sound stage usually

     

    Deep horns or " Wagner " horns are not scored for in this work?

     

    Were you unable to tell the difference timbrally or do you just not know how each instrument sounds quite different ?

     

    Also what does your use of "memorializing" mean I personally had no clue what you meant there ...

     

    Thanks Chris :)

    Hi Awsmone - Thanks for the comments and questions. Maybe I'll get to learn something here (I love that!).

     

    Benjamin Britten' s " Passacaglia" that I am referring to is the Reference Recordings version (HR-120) (Michael Stern / Kansas City Symphony). Here is a link Reference Recordings - HRx Details

     

    I am far from an expert in identifying each instrument although I hear the distinctly different sounds. The specific "deep horns" I'm talking about may be the tuba. The sound comes from the right channel.

     

    I hope you have a chance to listen to this version of Passacaglia and teach me a little bit about the different instruments :~)

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    Chris ... you often comment on how carefully you choose your words so I assume the statement "The Alpha DAC RS is without question the best DAC I've heard anywhere when it comes to 16/44.1 playback." is as carefully worded as ever?

     

    And a question... if you can ask Berkeley - are there any plans for them to have distribution and/or dealers in Europe or will the Alpha Reference not pass CE approval like the Alpha?

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    Chris ... you often comment on how carefully you choose your words so I assume the statement "The Alpha DAC RS is without question the best DAC I've heard anywhere when it comes to 16/44.1 playback." is as carefully worded as ever?

     

    And a question... if you can ask Berkeley - are there any plans for them to have distribution and/or dealers in Europe or will the Alpha Reference not pass CE approval like the Alpha?

    Thanks for noticing. Yes the wording was selected with the utmost care.

    I don't believe there are plans to be RHOS compliant with the RS.

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    For my station in life I read reviews for equipment at this level for the entertainment value only. For me it's no different that reading the automobile rags and dreaming about an Aston Martin or something else exotic, there's no chance of me acquiring either the DAC or the car. For pure entertainment value your review gets 5 stars, but my B.S. meter was pegged throughout the whole read. With such superlatives being bandied about what room have you left for the review of the equipment that beats the RS when it comes out, which will certainly happen. No comparison to vinyl which still remains the gold standard in some people's mind. Also, for $16,000 I would have expected a small level of bling, instead of the dull as dishwater design put forth.

     

    Leaving aside whether or not this DAC sounds best to you or me, how does the fact that Chris says it is the best he has ever heard preclude him from finding a future DAC to be better? He didn't say it is the best he will ever hear.

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    Chris,

     

    This was asked by someone else earlier in the thread but I don't know if you noticed: Did you use the BADA USB converter with the BADA RS during your review? If not, have you previously heard that particular setup in another system?

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    Chris,

     

    This was asked by someone else earlier in the thread but I don't know if you noticed: Did you use the BADA USB converter with the BADA RS during your review? If not, have you previously heard that particular setup in another system?

    Thanks for raising the question again. Yes, I used the Alpha USB converter with the Alpha DAC RS for some of the review period. The combination is stellar.

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    Strong stuff Chris. What has been your digital frame of reference to date?

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    So Chris are you keeping this or you sending it back after your review ?

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    So Chris are you keeping this or you sending it back after your review ?

     

    Our generous host wrote at the end of his review:

    If I could afford it and my job allowed it, the Alpha DAC RS is the only DAC I'd use for the foreseeable future.

     

    I guess this means that unit seems poised to ship back to Berkeley.

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    So Chris are you keeping this or you sending it back after your review ?

    I'll keep it as long as 'Berkeley' allows :~)

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    I'll keep it as long as 'Berkeley' allows :~)

     

    If they make ya send it back tell them you need to do some further testing and then send it to me for a few days and we can then pass it around CA until it makes a full circle back to you, by then Berkeley would have updated it or forgot about it. :)

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    Chris,

     

    Do you have any information on the RS's op amps?

     

    I spent about 25% of the cost of my DAC on op amp upgrades (plug 'n' play, thank goodness) and it made a significant difference, to the point where I now don't feel the need to listen to anything other than 16/44.1 PCM, which is exactly what you reported feeling with the RS.

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    I used the Sonore Signature Series Rendu for much of the review. This allowed me to use JRiver as the DLNA server and JRemote for control. I have a copy of all my DSD material in both native DSD and converted 176.4 kHz (converted with JRiver offline). I played plenty of the 176.4 PCM stuff through the RS and it sounded better than the native through other DACs. The RS is a game changer.

     

    Hi Chris,

     

    Great review. Any plans to review the new Sonore signature series Rendu? While I can't afford the DAC, I may be able to afford the renderer that provided the assist. Thanks.

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    Hi Chris,

     

    Great review. Any plans to review the new Sonore signature series Rendu? While I can't afford the DAC, I may be able to afford the renderer that provided the assist. Thanks.

    Yes, a full Sonore Signature Series Rendu review is on the way.

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    Chris,

     

    Do you have any information on the RS's op amps?

     

    I spent about 25% of the cost of my DAC on op amp upgrades (plug 'n' play, thank goodness) and it made a significant difference, to the point where I now don't feel the need to listen to anything other than 16/44.1 PCM, which is exactly what you reported feeling with the RS.

     

    My reading of Chris' review wasn't exactly the same as yours. I didn't read that he doesn't feel the need to listen to anything other than 16/44.1 PCM. A few paragraphs downs he talks about the RS playing one of the Ref Recording 24/176 files in similar superlatives.

     

    Larry

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    Thanks for raising the question again. Yes, I used the Alpha USB converter with the Alpha DAC RS for some of the review period. The combination is stellar.

     

    Chris,

     

    I also am using an Alpha DAC RS with a BADA USB, having recently upgraded from the Alpha Ser 2. It's the best sound I've had in my home, and I agree with all your comments. Some seem upset with how clear you were in stating your opinions, but instead in applaud you, not because i agree, but instead because it's refreshing in these times so see someone just calling it like they see it, even at the risk of later being proven wrong or upsetting some friends or sponsors. Keep up the good work.

     

    I'm still using the old Mac Pro I bought in 2008 after consulting with you. This was way back when the Lynx card was the preferred way to get data into an Alpha DAC. There probably is room now to improve on the Mac Pro, but with the BADA USB, the old 2008 Mac does not sound bad at all. Perhaps at some point you can share some though on this topic with me.

     

    The improvement from the Ser 2 to the RS is shocking. Even my TV playing through Toslink is so realistic on the RS that it makes one disconnect the home theater processor, and instead just listen to TV in stereo. I suspect the jitter reduction strategies and noise isolation in the RS are much improved. You recall experiments done by a friend in common where an Alpha Ser 1 or 2 was fed by a Pacific Microsonics AES output, and this made the humble Ser 1 or 2 sound much better.

     

    Anyways, the RS is like nothing I've seen or hear before. Surely worth the wait and the money.

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    Originally Posted by Stereo

    Hi Chris,

     

    Waiting for your review of Berkeley Audio Design's Alpha RS DAC. Can you also look into reviewing the Trinity DAC and compare it to this Alpha RS and the Vivaldi and the MSB Diamond. Trinity's link is here: DAC

     

    Some talk can be found here about it with some comments from the designer as well: Trinity DAC

     

    Hopefully you can acquire a test unit ASAP. Thank you.

    Hi Stereo - I will look into this.

    Chris Connaker

     

    Founder

    Computer Audiophile

     

    jt10 said:

    Today 07:25 AM

    Originally Posted by The Computer Audiophile

    Hi Stereo - I will look into this.

    Hi Chris - thank you please do!!

    Especially the Reference vs. Trinity

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    I'll keep it as long as 'Berkeley' allows :~)

     

    If this DAC is that good, would you consider downgrading your speakers or amps to pay for it, assuming no additional budget available?

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    I read your review of the EmmLabs Dac2x. Have you updated the firmware to MDAT2? Any opinions?

    Thx.

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    I read your review of the EmmLabs Dac2x. Have you updated the firmware to MDAT2? Any opinions?

    Thx.

    Yes I have been using the newest firmware in the DAC 2X for a while.

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