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Computer Audiophile

The Computer Audiophile

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  1. Article: dCS Rossini DAC Review

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  2. The New CA Issues and Feedback Thread

    Hi Guys - This thread is here to log any issues that you find with the site and to provide any feedback you wish. As usual, all feedback, good, bad, indifferent, is welcome. It has been a long weekend and I'm sure I missed a few things in my final run-through of the site. Please let me know what you find. In addition, I still have a lot of housekeeping to do and will get to it as soon as possible. A few issues I am working through: Front page articles need some of the code that didn't transfer over from the previous site removed (it's still visible in some articles). Article, not forum, attachments need to be re-attached (this will keep e busy for a while). Blog attachments need to be re-attached (this will also keep me busy for a while). I am creating URL redirect so some of the old URLs / web addresses will still work. Please let me know if you want your favorite thread to still work with the old URL (test to make sure I haven't created it already). Notes: Support for the iOS and Android apps has been discontinued. P.S. I still have access to the old site incase someone thinks they lost something.
  3. New press release: FOR IMMEDIATE RELEASE: Ayre Acoustics, Inc. introduces the QX-5 Twenty – The Digital Hub. Boulder, Colorado, USA - 27 April 2016 - Ayre's latest entry in the world of digital audio combines a decades-long record of ground-breaking innovation in both digital and analog audio with revolutionary features to set a new benchmark in the field. Every conceivable digital input, including Ethernet, StreamlengthTM asynchronous USB, S/PDIF (in three different formats), and even direct connection to thumb drives and NAS storage allows for unlimited flexibility and convenience. Streaming with both Tidal and Deezer are fully supported, and Roon ready control is directly integrated as well. Whether your music library comprises physical media, computer-based files, or streamed from the highest quality lossless services, all are seamlessly accessible with unprecedented ease. Ayre is proud to partner with ESS Technologies (www.esstech.com) to debut their new flagship D/A converter chip, the ES9038PRO in the QX-5. This advanced device builds on ESS's award-winning technology to set new standards for linearity and dynamic range. Combined with Ayre's custom minimum-phase digital filter, implemented in a low noise FPGA, this synergistic integration renders an astonishing level of detail and purity. Delivering all of music's emotional power to the listener - regardless of format. Ayre has also partnered with Morion (www.morion.com.ru) to develop a new high-performance crystal oscillator that offers the lowest levels of phase noise in the industry. Morion has decades of experience supplying satellite-grade crystal oscillators, including those powering the guidance system of the International Space Station. A specially developed new doubly-rotated cut quartz crystal allows this high level of performance to be achieved without the need for expensive temperature-controlled ovens. Precision timing is at the heart of conversion between the digital and analog domains, and the ease and fluidity of analog is fully realized for the first time with the QX-5. The Ayre QX-5 Twenty – The Digital Hub. This is music! ABOUT: Ayre Acoustics, Inc. has been steadily developing a full array of new audio and video technologies since 1993. Pioneering the use of zero-feedback real-time amplification, built on a foundation of the highest performance power supplies, and maximizing the circuit's performance capabilities through the use of fully-balanced, differential circuits from input to output, Ayre's designs have continually won countless awards for decades. All Ayre products are designed and built by hand in Boulder, Colorado, using only components from the highest quality supply partners in North America, Japan, and Europe.
  4. Album of the Evening

    I recently started listening to one complete album from start to finish every evening. It's really great to sit down, no Internet, no phone, no iPhone, no i-anything and close my evening out with uninterrupted music. There's nothing like closing out each day on a great note, no pun intended. I want to start this thread for people interested in doing the same thing. Listening to an album every evening and posting simply the artist and album information. Doesn't have to be a picture or the cover or a link or anything. It's more about enjoying this wonderful hobby. I'll start with my Album of the Evening for tonight: Artist: Boston Album: Boston
  5. Hattor Audio Class D (Hypex)

    Nothing wrong. Attacking a product is fine. Using wgscott’s wit to attack a product and show how redicilous another’s comments are is even better.
  6. Article: dCS Rossini DAC Review

    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.
  7. Hattor Audio Class D (Hypex)

    Link please.
  8. MQA is Vaporware

    Give me a break. I host the worlds largest anti-MQA threads and pay someone to write a front page article on the same topic and you still say the same nonsense. There is no pleasing you. I believe you just like to bust balls.
  9. Hattor Audio Class D (Hypex)

    Hey prof. Scott - Time to cool it. Your posts are being reported and I’m being accused of favoritism because I didn’t act upon this within 30 seconds of it being reported. To the person who reported this and thinks there are two sets of rules, you’re incorrect. Running CA and Superphonica takes a considerable amount of time. I can’t act on your reported posts immediately. And, contrary to your belief, I’m smart enough to understand how sucking up works. Prof. Scott isn’t a suck up in order to post what he wants. In addition, I give more leeway to those who’ve been around CA for several years and have contributed a great deal. By leeway I mean I don’t ban them with a hair trigger. I try to issue warnings and contact them offline if needed. Everyone has moments that don’t represent them as a whole.
  10. Article: dCS Rossini DAC Review

    Same here - https://superphonica.com/search-results/?q=wilson audio
  11. Earphones Stolen - What's My Next Pair?

    Hi guys - My JH Audio in ear customs were stolen the other day. I'm looking for another pair of customs. Years ago the choice was between Ultimate Ears and JH Audio. Now, there are many more options. What do you guys recommend?
  12. Earphones Stolen - What's My Next Pair?

    Still haven’t decided!!!! I’ve failed as an audiophile:~) im using some Beyerdynamics I purchased at the Munich airport :~(
  13. MQA is Vaporware

  14. Article: dCS Rossini DAC Review

    Just wondering if you've had the chance to listen to such a great version of this recording.
  15. MQA is Vaporware

    MQA LIVE LAUNCHES IN AUSTIN WITH EXCLUSIVE JAKE ISAAC LIVESTREAM PRESS RELEASE MQA LIVE LAUNCHES IN AUSTIN WITH EXCLUSIVE JAKE ISAAC LIVESTREAM Austin TX / London, 19 March 2018: An invite-only audience in Austin experienced the debut of “MQA Live”, a new way for fans to connect to musicians. Jake Isaac and his band performed from London's Rocket Studios – the first time a live performance has been streamed in real time using MQA's technology. The performance was listened to live in an Austin home on a variety of devices to recreate everyday listening environments. MQA is launching its “Live” product to enable music fans to connect in studio quality to their favourite artists, wherever and whenever the artists are performing. Fans can listen to a live concert in its original quality, as if they were standing in the venue. MQA Live offers access to gigs across different countries and time zones for loyal fans, as well as opening up concerts to new audiences. Mike Jbara, MQA CEO, stated, “MQA Live offers fans the authenticated sound direct from the venue, so conveniently that it can fit into their everyday lifestyle, wherever they are and however they chose to listen. The home environment in Austin, with a variety of playback devices, was a great way to experience Jake’s special performance, and excited those in attendance to imagine a new age of social and appointment listening.” Jake Isaac, singer-songwriter and musician, added, “I feel really lucky to have been part of the first MQA Live experience. After the performance, the MQA team played the recording of the live stream back for me and I was blown away with how powerful it felt.” Why audio only MQA Live is an audio-streaming tool. Recent research shows that 95% of YouTube/Vevo music users listen to music without watching the video (Midia Research) and 87% people listen to music on radio (IFPI: Connecting With Music), supporting the fact that a high quality audio-only experience fits into the lifestyle of music fans. Incidentally, it also dramatically reduces the expenses associated with video production and broadcasting, making it something that can be offered for every show and every artist in every venue. How it works MQA has applied its ground-breaking technology to make a real time encoder, which connects easily to the audio system of the location and then can be sent into the chosen delivery platform of promoters and venue owners. The only additional equipment required is MQA's live encoder box at the venue to encode the performance. This keeps production costs low, while the MQA encoding process preserves audio quality and addresses bandwidth issues. MQA music will stream and play back on any device, although for optimum results and the full MQA ‘unfold’, use devices or software from the growing number of MQA partners. For more information go to MQA Live. -Ends- MQA Press Contacts lisa@mqa.co.uk | sarah@mqa.co.uk Press Site for MQA www.mqa.co.uk/press About MQA Using pioneering scientific research into how people hear, the MQA team has created a technology that captures the sound of the original studio performance. The master MQA file is fully authenticated and is small enough to stream, while also being backward compatible, so you can play MQA music on any device. MQA’s award-winning technology is licensed by labels, music services and hardware manufacturers worldwide and is certified by the RIAA. MQA is a UK-based private company. For more information visit www.mqa.co.uk Follow MQA on: Facebook Twitter You Tube Jake Isaac’s performance was listened to ‘at home’ in Austin on the following devices: In the lounge: Bluesound Powernode 2 streamer with Sony SS-CS5 Stereo bookshelf speakers Outside on the deck: Macbook + Audirvana + Meridian Explorer2 DAC + Sony MDR-Z7 headphones In the bedroom: Bluesound Pulse Flex portable all-in-one wireless speaker On mobile: LG V30 handset + Oppo PM-1 headphones In the car: iPhone 8 + Amarra Play app + AudioQuest Dragonfly DAC Setlist: Lonely Are The Brave Will You Be I’m A Man (acoustic) I Got You Long Road 0939b96cf773f26a36de770882ed890953027d41.pdf
  16. Article: dCS Rossini DAC Review

    Indeed it does appear in A+
  17. Article: dCS Rossini DAC Review

    Great questions. I really should have put it through my usual torture test of UPnP/DLNA, but I used Roon 99.99% of the time. I will do this and follow up. I feel like I really missed the boat on this one and owe it to the CA Community. The native app is far better than it used to be, but not close to Roon or JRemote level. For some people is will be exactly what they want because it's simple. More to come.
  18. Article: dCS Rossini DAC Review

    Hi Joel - Hope all is well in your life since we last talked. Do you have the version of The Freewheelin' Bob Dylan I used in the review?
  19. 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. 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: Computer Audiophile 100 Playlist Computer Audiophile PJ4CA Playlist Associated Equipment: Source: Roon ROCK, MacBook Pro Running Roon, JRiver (Windows 10 and macOS Sierra) DAC: Berkeley Audio Design Alpha DAC Reference Series 2 MQA, EMM LAbs DA2, Schiit Yggdrasil D-to-D Converter: Sonore microRendu, Sonore Signature Rendu SE, dCS Network Bridge, Berkeley Audio Design Alpha USB Amplifiers: Constellation Audio Mono 1.0 / Monoblock Power Amplifiers Preamplifier: Constellation Audio PreAmp 1.0 Loudspeakers: TAD Labs CR1 Compact Reference Remote Control Software: Roon Remote Remote Control Hardware: iPad Pro Playback Software: Roon, JRiver Network Attached Storage (NAS): Synology DS1812+, CAPS v4 Cortes Server Audio Cables: Wire World Platinum Eclipse 7 Interconnects (XLR & RCA), Wire World Platinum Starlight 7 Digital Cables, 512 Engineering Speaker Cables USB Cables: Wire World Platinum Starlight 7 USB 2.0, AudioQuest Diamond USB 2.0, Nordost Purple Flare USB 2.0 Power Cables: ALO Audio AC6 Power Cables Ethernet Cables: AudioQuest Vodka, Wire World Starlight and Chroma Network: Cisco SG200-26 Switch, Baaske MI-1005 Ethernet Isolator, Ubiquiti UniFi USG Router, Calix 716GE-I Optical Network Terminal, CenturyLink 1 Gbps download / upload
  20. The Paul Hynes SR4 PSU

    Give it up Amir.
  21. Audirvana Plus 3 (official thread)

    Hi Guys - In anticipation of Audirvana Plus 3, and seeing how large the AP 2.6 thread has become, I started this thread as the location for all AP 3 conversations.
  22. A crowd funded motherboard(s) for audiophiles - Part 2

    The OP already has this ability. I believe @austinpop has already done this in another thread.
  23. Article: dCS Rossini DAC Review

    Swapping channels happens accidentally when producing and album or remaster. There are many more examples of this one including Led Zeppelin. My guess is these versions of the album or at least the track are different. Both our systems are fine :~)
  24. Article: dCS Rossini DAC Review

    Not at this time. @miguelito has a Rossini and clock.
  25. Audiophilia Syndrome

    If we can’t make fun of ourselves, we are in trouble. Good effort Ralf.