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    The Computer Audiophile

    dCS Rossini DAC Review

    We've all had those weeks that never end, stress us out, and leave us feeling shattered by the time the weekend rolls around. This has been one of those weeks for me. I'm not complaining, there are many worse jobs and places to live in this world, rather I'm leading into the antidote to stress and exhaustion. Some people sooth with substances, but I've found a reference HiFi system can be much better. Right now my reference system is quarterbacked by the dCS Rossini digital to analog converter. 

     

    This evening I sat down in my listening chair for a final listening session with the dCS Rossini. All the lights were out. The blue glow of the power indicators on my Constellation Audio amplifiers could be seen as well as the front panel of the Rossini. Other than those items, the room pitch black. I leaned back in my chair and tapped play through Roon on Bob Dylan's The Freewheelin' Bob Dylan album. 

     

    As soon as the unmistakable acoustic guitar began in the right channel, my body eased up and started to unwind. Dylan's unique voice emanating from dead-center between the TAD CR1 loudspeakers put a smile on my face. The antidote was kicking in. By the time Dylan played the track out with his harmonica I was in a much better place physically and mentally than when I walked into my listening room. 

     

    The MoFi DSD remaster of The Freewheelin' Bob Dylan ripped to dsf files and played through the dCS Rossini sounded so organic, so realistic, so full, so lush, that I listened to the first 11 tracks without as much as a volume adjustment. When something sounds this great I don't make changes. Why fix what's not broken? 

     

    Perennial skip-over tracks such as Down the Highway had me sucked-in. Dylan's acoustic guitar through the dCS Rossini had incredible depth and dimensionality down through the lowest frequencies. As Dylan strums and plucks, each string can be heard as it should be heard, as a distinct different sound with unique tonal characters and richness. And to think I usually skip over this track. I guess hearing it in all its glory, as it was meant to be heard, can change one's mind. It's a great song that sounds great through the Rossini. This experience gives me pause, to think about why I skip certain songs when listening on other components. 

     

    The dCS Rossini has made previously skipable tracks part of my must listen regimen. Yes, my listening regimen. The audio antidote to stress is a great HiFi system with great music. It's capable of restoring one's health after days and weeks we'd rather forget.

     

     

     


    regimen | ˈrejəmən |
    noun
    1. a prescribed course of medical treatment, way of life, or diet for the promotion or restoration of health.

     

     

     

     

    Still in a folky mood, I queued up the Audio Fidelity version of Peter, Paul and Mary's 1963 album In the Wind. Some of the tracks on this album aren't typically what I'd consider in my wheelhouse, but damn they sounded great. I couldn't stop listening. Again, the music continued reduced my anxiety and stress from the week by transporting me into another era. The song All My Trials was nothing short of amazing through the dCS Rossini. The full bodied and rich vocal harmony sounded so good it was like a drug of which I couldn't get enough. Listening to each individual vocalist when I wanted and listening to the magical blend of the group together most of the time seriously set me at ease. I don't know that I've ever heard a more touching version, a version that got to me this much, or a better reproduction of this track on any component or system I've heard to date. This is what HiFi is all about for me, listening to music and letting it get to me on many levels. The better sounding the system the better I feel. 


    A few weeks ago a good friend sent me an email suggesting I listen to Melody Gardot's new Live in Europe album. I gave it a digital spin at the time and wrote back that I was underwhelmed. Fast forward to this afternoon while I was driving in my car down I394 listening to Jazz 88 FM radio. The track My one and Only Thrill from this album came on and I was hooked. Upon returning home I email my friend back to say I was now onboard with the album. 

    Pressing play on this album through the dCS Rossini, connected to the direct input of my Constellation Audio Inspiration amplifiers, brought me much enjoyment. Listening to My One and Only Thrill through this system rather than my aftermarket car system gave me an even better feeling. The track opens with a piano but it's the very emotional sounding cello that sets the tone. Through the Rossini this cello sounds rich when out front, and mystically airy when backing Melody's vocal throughout the song. About 6:50 into the track the cello comes back to prominence and has this incredible smooth yet gritty sound that's extremely haunting. It's amazing that this is a live recording and it sounds so good considering it was released in 2018. Kudos to Melody Gardot for delivering the album and to dCS for enabling us to hear all of it as it was delivered by the artist. 

     

     

    A Bit About Hardware, Software, and Filters

     

    Before continuing with my listening experiences, I should at least get into the hardware and software of the dCS Rossini. This DAC is the opposite of typical DACs that use off the shelf parts assembled according to application notes. dCS uses its proprietary Ring DAC, custom user selectable filters, custom mapping algorithms, and custom software platform all developed in-house.  In addition, when many manufacturers of storied HiFi brands are cutting corners, dCS has managed to improve the quality of its products both inside and out. 

     

    dCS continually improves its products via software / firmware updates. With custom "everything" onboard, the company is free to add features and extend the life of its products until the hardware just doesn't have enough horsepower. During the review period I upgraded the Rossini with the click of a button that checked for the upgrade over the internet and automatically installed the newest version.

     

    Certainly (in some circles) the most controversial part of the latest upgrade was the addition of MQA decoding and rendering. However, the Rossini isn't just another MQA capable DAC. But first a little about filters. The Rossini features six dCS PCM filters, one MQA filter, and four DSD filters. All "designed" by dCS. I put the word designed in quotes because it isn't entirely true but it isn't entirely false. dCS (Andy McHarg) worked with MQA to develop the first implementation of the MQA Reference filter.  What this means is the dCS M1 MQA filter perfectly meets all 16 possible MQA filter coefficients exactly without having to be tailored to offset limitations or errors in the D/A converter.  Because of speed, linearity, and frequency response of the RingDAC dCS was able to exactly match the ideal MQA reconstruction filter coefficients all the way up to 768k.  So in other words, MQA came up with the theoretical ideal filter coefficients, and the flexibility of how dCS does things allowed the company to code those in to allow ideal filter responses.

     

    There are two other aspects to the dCS MQA implementation that are different from most other manufacturers.  First, with many other implementations, if MQA encode is turned on then all audio passes through the MQA filter.  With the Rossini and all other dCS devices the DAC or streamer determines whether MQA encoded music is playing before applying the filter.  Second, having a choice of filter responses is in the dCS DNA. From he very beginning, when the company approached the MQA project it was important that dCS users still had the ability to select traditional dCS filters with MQA material. Again, it's about flexibility and personal choice for dCS customers. 

     

    Control of the Rossini's features, including filter selection, can be accomplished most easily via the dCS iOS app (an Android app will be explored down the road). The app also enables the user to play music from a UPnP/DLNA server, Tidal, or a USB stick connected directly to the Rossini. In the true dCS spirit of flexibility for its customers, the company has also enabled AirPlay and Sotify playback.

     

    During the review I used Roon for playback much of the time because of the tight integration between Roon's iOS app and the Rossini. Adjusting volume within Roon also adjusted the volume directly on the Rossini and vice versa. Two-way communication between the Rossini and Roon is a very nice feature.  

    The analog outputs of the Rossini, like all dCS DACs, can be set at 2V or 6V. I used the Rossini at 6V output connected to the Direct input of my Constellation amplifiers. This Direct input bypasses a gain stage inside the amp and is to be used with Constellation preamps or a limited number of DACs. Some DACs work well with this input, but most sound pretty flat. The Rossini is a great match for this input. Other DACs connect to the XLR input of the Constellation amps and carry on without any issues. 

     

    The Rossini has a complete menu of options and features that most DACs can't come close to matching. The user can customize it until content or have a dealer set it and forget it. Like the Vivaldi, the Rossini is one of, if not the most, versatile DAC in the industry.

     

     

     

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    Back to Listening


    Finishing up my listening session I put on some classical music, Michael Stern and the Kansas City Symphony. The Reference Recordings release of Britten's Orchestra (out of print) is a favorite of mine and is capable of transporting me into another world through a transparent audio system. Don't get me wrong, I could enjoy this album on any system. However, it takes exceptional components to reproduce all of this Keith Johnson 24/176.4 recording in a way that enables me to get completely lost in the music and hear each instrument individually as I drift through the performance in my listening room.

    At times I can be a stickler for good transient response in the audio components I use in my system. When listening to 176.4 kHz classical music such as this album I prefer the dCS filter number 5. This filter has a Gaussian response with no overshoot on transients and relaxed roll-off. As a side note, I prefer filter number 4 for 16/44.1 music because of its good transient response. 

     

    The opening track on this album, The Young Person's Guide to the Orchestra, is a 17 minute mix of loud crescendos and soft sweet violin followed by violent percussion and stern yet smooth horns. This track touches all the bases and all frequencies for those listening to judge a playback system. Fortunately I listen to this for enjoyment as I really love the music (this coming from a Pearl Jam type of guy who'd rather not listen to much classical). 

    The dCS Rossini didn't disappoint throughout this track and the entire performance. The opening transients weren't memorialized, the violins were wispy yet rich in tone and texture, and the horns were brash when appropriate. The Rossini reproduced the complete performance with a full, rich sound that made it possible to hear the entire symphony as one or each individual instrument as a single piece of the larger whole. 

     

    Closing out the first track, with about 1:30 remaining, the symphony picks up steam enabling one to hear the whole sound much greater than the some of the parts. With about 30 seconds remaining the musicians are firing on all cylinders with loud transients, soft yet audible flutes, and crashing yet controlled cymbals. Through the Rossini this performance is reproduce at a level second to none. OK, second to nothing I've had in my listening room in recent memory. 
     


    Conclusion

     

    This wonderful hobby of ours isn't often about restraint but rather excess. The Rossini DAC is the sweet spot in the dCS lineup. It's $23,999 price tag doesn't scream moderation to many music lovers, but I assure you the Rossini is much more capable than the dCS Debussy ($11,999) but not up to the level of performance that's possible with the dCS Vivaldi ($35,999), the Rolls Royce of digital to analog conversion. 

     

    Given the complete control that dCS has over hardware and software, the digital wizards of Cambridge, England continue to find ways to improve the Rossini's capabilities and level of performance. Through software and firmware updates, available at no cost, new features have already been added to this fairly new DAC. These updates and product enhancements extend the life of dC products as far or further than any other digital product of which I'm aware. 

     

    The bottom line for many enthusiasts is performance. The dCS Rossini offers high performance, in addition to build quality, that's as good or better than anything I've heard in my system in recent memory. Whether one listens to folk, rock, vocal, jazz, or classical the Rossini is completely capable absolutely stellar music reproduction. I've had and continue to have more DACs come through my system over the years than I care to admit. Based on performance, support, and future upgradability the Rossini is one of two or three DACs that I'd really love to keep. When dCS finally comes calling for this one, at least I can keep it on the C.A.S.H. List for a long time. 

     

     


     

     

     


    Products Informtion:

    • Product - dCS, Rossini DAC ($23,999)
    • Product - Link
    • Product User Manual - Link

     

     

     

    Associated Music:

     

     

     

     

    Associated Equipment:

     

     

     




    User Feedback

    Recommended Comments



    11 minutes ago, Priaptor said:

    I'm not criticizing the "sound" of Magico and Wilson, whether I like them or not.  What I am criticizing is their need/desire to always upgrade in very short period of times compared to Chris' TADs

     

    Are you sure you mean that?  It's an unusual statement from an audiophile.  Shouldn't we applaud Magico's and Wilson's aggressiveness in pursuing the best possible sound?  If they know how to make a better speaker than the ones currently on sale, shouldn't they release it?

     

    Also, I'm not saying we shouldn't applaud a product that has stood the test of time, such as Chris's TADs.  I'm just saying that the test is that it has to keep holding its own against the competitive onslaught.

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    9 minutes ago, PeterG said:

    Are you sure you mean that?  It's an unusual statement from an audiophile.  Shouldn't we applaud Magico's and Wilson's aggressiveness in pursuing the best possible sound?  If they know how to make a better speaker than the ones currently on sale, shouldn't they release it?

    I would argue one should accumulate improvements over some period and then release a meaningfully new version. I can't imagine a mature product can get meaningful improvements every few months. I might be wrong.

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    21 minutes ago, ted_b said:

    Anytime a new product is launched within a company's product set, it tends to diminish the sale/resale value of the product it replaces (or supercedes), let alone put the buyer in a death spiral conundrum of "waiting til the next version".  When you add in that Wilson and Magico begin at such a lofty price, it tends to really make things uneasy for the prospective buyer.  Lampizator had the same issues for many years as Lukasz would create a better moustrap every 3 months, each with seven options!  Audiogon would then have the old versions for half the price, even if one could figure out what versions they were!  :)   My $.02

    Agree. But at least with a Lampi they would give you full value on a trade-in and trade up if the device was relatively new, with a reasonable sliding scale after that. Takes a bit of the sting out.  And he does seem to be stabilizing his product line somewhat, with fewer models and fewer options. 

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    1 hour ago, PeterG said:

    Don't be certain you'll be able to make sense of them even with the lyrics;)

    I think his lyrics make a lot more sense than those of many others.

    I have no idea what they are "supposed" to mean (if there is such a thing), but I certainly have an understanding of what I think they mean. That's sort of all that matters in the end. 

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    Ted/Miguelito--I agree with both of these posts.  Of course, in a way, they answer each other.  A company really should be careful of resale value impacts, and it probably takes a few years to come up with meaningful improvements.

     

    As I reflect on my own system (which IMHO is excellent though not in the same league as this thread), I am using the 3rd generation of an iconic speaker (B&W diamonds) and the 6th (at least) generation of a classic amp (McIntosh 275).  I have not heard earlier generations, but the reviews would tell you that their predecessors were awesome decades ago, and that the current versions are far better for the iterations.

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    1 hour ago, Priaptor said:

    Sometimes the enemy of good is better. 

     

    No I personally do not applaud Magico and neither do I applaud some of the practices of Wilson.  When Wilson releases an Alexia, then goes to the usual sources to get the "best ....." reviews only to within an inordinately short period of time release an Alexia 2 TOTALLY replacing their originally Alexia with NO upgrade path to the original Alexia owners, I think that sucks with no concern for the enduser.  But that's me.  Now they have their new great Alexandria.  Will that also soon be replaced within a very short period of time with no upgrade path like they have started doing recently with Alexia 2?  

     

    Magico is the worst violator of this.  Their Q series, the best best best.  Soon the S series which "in some ways are better than the Q" but much cheaper.  Then the Q MKII.  Then the S MKII.  Then the M Project, only 40 to be made for some very special customers.  Then the M3 at a cheaper price better than the M Project.  Then the king of them all the M6 better than the Q7 MKII.  And the merry go around goes round and round and Magico users, fall into two camps, happy with what they have no matter how "outdated" which is a minority or the other, who want the newest and "best" and wind up going through the inordinate costs and hassle of upgrading. 

     

    I have no patience for companies like this.  In my decision to choose a solid state amplifier and DAC the company's obsolescence time and manner of upgrade paths is very important to me.  The same with DACs.  I understand companies "upgrade" their products BUT churning is another story and I ignore those companies.  The other thing to remember is that when there is a "dealer" as in the case of Magico or Wilson or any other company like D'Agastino, there is already a built in consumer base, namely the dealer, who must upgrade to the latest to show the customers so all the onus is on the dealer with little risk to the manufacturer. 

    The Wilson Alexia Series 1 was "current" for 5 years. There was no way to upgrade an Alexia Series 1 to a Series 2 since the Series 2 had completely redesigned bass and midrange cabinets.  

     

    But I don't think that any Alexia Series 1 speakers stopped working after 5 years.

     

     

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    16 minutes ago, Mercman said:

    The Wilson Alexia Series 1 was "current" for 5 years. There was no way to upgrade an Alexia Series 1 to a Series 2 since the Series 2 had completely redesigned bass and midrange cabinets.  

     

    But I don't think that any Alexia Series 1 speakers stopped working after 5 years.

     

     

    My bad, you are right that they were on the market that long.  It seems much shorter. 

     

    Not arguing that the originals stopped working but when you release a Series II of the same speaker it greatly diminishes the inherit value of what you bought.  What makes the policy, IMO, relatively unsettling is that as you indicated it is a total redesign with no upgrade path yet maintains the same standing in the Wilson name, sans series II.  When I owned NOLA Baby Grands, "new" Baby Grands that went by the Baby Grand name were upgradeable at a very reasonable cost.  While the originals haven't stopped working as you state, I think the number of Alexia series 1 on the market for resale speaks to my point.  

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    3 hours ago, Priaptor said:

    When Wilson releases an Alexia, then goes to the usual sources to get the "best ....." reviews only to within an inordinately short period of time release an Alexia 2 TOTALLY replacing their originally Alexia with NO upgrade path to the original Alexia owners, I think that sucks with no concern for the enduser.

     

    There actually kind of is an upgrade path, "The Wilson Certified Authentic" program.  Dealers move the owners original speakers prior to bringing in the new one.  I would think physically upgrading might be impossible in most cases.

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    2 hours ago, Priaptor said:

    My bad, you are right that they were on the market that long.  It seems much shorter. 

     

    Not arguing that the originals stopped working but when you release a Series II of the same speaker it greatly diminishes the inherit value of what you bought.  What makes the policy, IMO, relatively unsettling is that as you indicated it is a total redesign with no upgrade path yet maintains the same standing in the Wilson name, sans series II.  When I owned NOLA Baby Grands, "new" Baby Grands that went by the Baby Grand name were upgradeable at a very reasonable cost.  While the originals haven't stopped working as you state, I think the number of Alexia series 1 on the market for resale speaks to my point.  

    You are right about the about taking a hit on the resale price. The smart guys always purchase the old models at a big discount.

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    33 minutes ago, Dr Tone said:

     

    There actually kind of is an upgrade path, "The Wilson Certified Authentic" program.  Dealers move the owners original speakers prior to bringing in the new one.  I would think physically upgrading might be impossible in most cases.

    I actually owned many Wilson speakers in the past and their “upgrades” used to most often be a field upgrade that were not to difficult. The biggest issue I had with one of them was I had to solder a new lead to a driver on my X1. I probably shouldn’t put Wilson in the same category as Magico as the latter really is in a class of its own in what I label churning but I am starting to see a pattern emerging that is varying with past Wilson practices. Not that it effects me as I was just making an example. 

     

    While I recognize both Magico and Wilson for being excellent products they just aren’t my cup of tea and was just illustrating the “upgraditis” built into both manufacturerss. 

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    Consider anti-Churning...

     

    Magneplanar will not release a new speaker until it passes their blind testing.

     

    That's right, they use blind testing (!)

     

    They also designate an "i" version which is not a full numeric upgrade.  They are very up front about this, and they will even tell you "maybe you should just keep the ones you have" as they did me.

     

    I also have a very healthy respect for Dick Vandersteen and his co. seems similar. 

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    10 hours ago, ted_b said:

    Anytime a new product is launched within a company's product set, it tends to diminish the sale/resale value of the product it replaces (or supercedes), let alone put the buyer in a death spiral conundrum of "waiting til the next version".  When you add in that Wilson and Magico begin at such a lofty price, it tends to really make things uneasy for the prospective buyer.  Lampizator had the same issues for many years as Lukasz would create a better moustrap every 3 months, each with seven options!  Audiogon would then have the old versions for half the price, even if one could figure out what versions they were!  :)   My $.02

     

    I fell into Lampizator's mouse trap. A DAC with great SQ for my taste, but in a short time I realized that I was buying a product that would never be his last and best version, always surpassed by a new one and quite expensive. Send it to upgrades forget, very difficult to export and re-export products from my country and pay again the expensive import taxes. I came to feel as if I had bought an unfinished product.

     

    The above without taking into account the large investment in the coupling tubes (that are also business of this company) and that change the the SQ "flavor".

     

    Roch

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    1 hour ago, The Computer Audiophile said:

    Speaking of upgrades etc... The dCS platform is very upgradable. Using history as a guide, people who buy a Rossini today will have a current DAC for many years via free upgrades. 

    And truly amazing customer service. 

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    15 hours ago, miguelito said:

    This is the DSD download I purchased:

     

    http://store.acousticsounds.com/d/98485/Bob_Dylan-The_Freewheelin_Bob_Dylan-DSD_Single_Rate_28MHz64fs_Download

     

    However, it doesn't look to be a MoFi release. Roon's pick of the MoFi artwork threw me off. The sound quality is stunning regardless.

    Thanks for the clarification.  And I agree with you completely: the DSD64 version from Acoustic Sounds is superb.  But I cannot help but wonder how the MoFi SACD sounds through my primary listening DAC.  If only I had kept my OPPO 105D I could have purchased and ripped it.... <sigh>

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