Tidal vs Hi Res Files vs CD vs “Netflix”. My test. Incredible!


1.     Introduction. I know there are several threads on different forums about similar subjects, but I couldn’t find one with the exact information I wanted, so I performed my own test.

This is not a scientific test, but I’ve got very consistent results that I want to share and read your opinions.

2.     First, the basics:

        2.1. I listen to ALL of my music streaming Tidal because I like very much its infinite library, the instant access to the music, the chance to make lists with different artists by gender and not having to listen to entire records, the cost of all that music against having a private library of CDs or Hi Res files, the interface, the information of the artists, the chance of finding new and amazing music, etc.

        2.2. If I decide to change Tidal (for CD for instance) it would have to be due to a SIGNIFICANT difference in sound quality.

        2.3. For the test I used the EXACT same system for every source, from the DAC to the speakers (pream, power amp cables, etc). By the way, the system is a hi end and a pretty revealing one, so I can hear the differences easily.

        2.4. I used only Tidal as HiFi streaming service as I don’t have Qobuz where I live (Argentina).

        2.5. For the comparisons I used the same songs in different formats and sources, most of the times (not always), from the same album when possible.

I know you will say that different masters from any band will differ in sound quality and I know that, but I’ve got consistent and very similar results on the different tests and if I have to choose a source with the effort of chasing each song’s perfect recording/master, it would be endless, pointless and very expensive.

        2.6. The songs I used are NOT audiophile grade recordings, BUT they serve for the purpose as they were available from the different sources and my CD collection is very scarce.

        2.7. I did only a few test as I don’t have the time and the patience to spend hours on this subject as I’m not a reviewer and, as I’ve said, the results were consistent.

       2.8. Cables (speaker, USB, RCA/Coaxial, Power, etc) are good enough, but not the most expensive ones (Kimber and DH Labs mostly).

       2.9. I did A/B test with almost no delay, as the three rigs tested were connected to different inputs of my DAC and I only had to switch between them. That helped me A LOT to detect the differences.

3. Rigs for the tests (upstream from the DAC)

       3.1. Computer-USB chain (for Tidal and Hi Res Files):

              Ethernet Cisco Gigabyte Switch and CAT8 Ethernet cable to my Windows 10 Notebook.

              Audinirvana+ for streaming Tidal or playing Hi Res files from the hard disk.

              Audioquest Jitterbug as pasive filter for the USB port.

              Wyred4Sound USB Reclocker with a Swagman Hifi Linear Power Supply.

              Gustard U16 USB to I2S converter (a very good upgrade in my system).

              I2S 2.1 protocol (HDMI) cable to the DAC.

      3.2. CD Player Rig:

             Samsung budget Blue-Ray player.

             Coaxial cable (Kimber 1m long) to my DAC.

       3.3. Netflix Rig:

              LG Smart Tv.

              Cheap Amazon Toslink/Optical cable to my DAC.

The Tv uses WiFi for connection, instead of Ethernet cable like the computer (wich is much better soundwise), and it is not connected to the AC Power conditioners and Filters as the USB-Computer chain is.

4.  Tests

      4.1. CD vs Tidal (Hi Fi and MQA)

          4.1.1.       Band: Huey Lewis and the News

                          Tidal (Hi Fi and MQA) Album: Sports.

                          CD Album: The Best of Huey Lewis.

                          Best sound in order:

                          a.       Tidal MQA

                          b.     CD

                          c.       Tidal HiFi

NOTE: the differences/gaps in sound quality between a; b and c were similar. NOT big, but noticeable and “very consistent with the next tests (A-ha and Coldplay)”. I also think I noticed them as I changed fast from one source to the next. Otherway, I think it would be hard to detect them.

           4.1.2.       Band: A-ha

                           Tidal (MQA) Album: Time and Again, The ultimate A-ha.

                           CD and Tidal (Hi Fi) Album: The Hits of A-ha (not available on MQA).

                           Best sound in order:

                           a.       Tidal MQA

                           b.     CD

                           c.       Tidal HiFi

           4.1.3.       Band: Coldplay

                           Tidal (HiFi and MQA) Album: A head full of dreams.

                           CD Album: A head full of dreams.

                           Best sound in order:

                           a.   Tidal MQA

                           b.   CD

                           c.     Tidal HiFi

      4.2. Hi Res (PCM 96/24) vs Tidal (only Hi Fi, not MQA)

           4.2.1.       Band: Pink Floyd.

                           Album (for both sources): The Division Bell.

HiRes file was a LITTLE better. May be so little that it could be placebo effect and so little that it doesn’t justify having HiRes files for computer playback.

     4.3. Netflix vs Tidal (Hifi)

Here I don’t have many choices as Netflix is not an audio streaming app.

I found the difference by chance. Nevertheless, before the tests, I always had the feeling that the sound coming from Netflix was somehow better than my USB rig, but I thought it wasn’t possible and it was only my imagination considering all the money I spent on my USB-Computer rig. BOY, I WAS WRONG!!

I only compared a couple of songs, but I didn’t need more than that a couple of direct comparison as I find ALL of the songs to sound better than my USB rig because I’ve been listening to the latter for a long time and, eventhough every recording is different, I know how it sounds my Rig in general (tone, soundstage, layering, imagining, impact, bass, etc).

The songs I used to make the A/B comparison are “Still falling for you” from Ellie Goulding from Bridget Jones’s baby Soundtrack and “Nothing’s gonna hurt you baby” from Cigarettes After Sex from Kidnapping Stella Soundtrack.

Well, eventhough they are NOT audiophile songs, the sound from my Tv (I repeat with wifi, cheap cable and NO AC conditioning) is SO MUCH better and analog than the one from my USB rig, that I still cannot believe it!!!

I cannot compare it to any other format than Tidal HiFi, but the difference is SO BIG that I think not even Tidal MQA on my USB-Computer rig comes close.

5.       Conclusions

      5.1. I know that if I get a better CD player I will get much better sound, but I also think that if I get a good streamer-transport, I will also improve my Tidal sound quality a lot, may be by a similar margin.

      5.2. So, Im after a good streamer-transport to get AT LEAST the sound quality I have with my Netflix rig. If I dont get it with it, I will recomend Tidal to hire Netflix engineers!!! J

6.       I would love to hear some other audiophiles “similar” experiences with CD vs Tidal vs other hifi digital formats and sources.

Please only post about real experiences, not getting to technical, as it gets boring and somehow useless.


plga
Nicely done. Please keep in mind there is absolutely and unequivocally nothing that can actually improve on digital audio source material ... if we are talking about higher sample rates, or MQA, etc. The BEST quality is the NATIVE sample rate of the session. The end. Now, if you "prefer" something else, that’s of course totally fine and normal. From my perspective as a mastering engineer, MQA introduces very subtle harmonic distortion, and that distortion might make things seem louder, or better, or both. A little harmonic distortion can be a good thing. We add distortion to audio all the time, to make it sound better. Yet for those of us who put the perfect amount in the actual file, it’s too much. Bottom line, no alteration from the mastering source file is actually a better file. If you want the real thing, get the native sample rate file. For example, Dan Lanois did so many great records on a DAT at 16/44.1 Anything else is noise.  If you blow up an old photo post card and play it high res on a big screen TV, it's ugly. Happy listening !
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I don't get this, how do you play audio albums on Netflix?
Can you even confirm that the source material is same, and not "prepared" for screen/movie (EQ, dynamics changed or compressed)?
Great thread,

the best response is from the recording engineer: BITS are BITS. PIXELS are PIXELS.

source file, unadulterated, to speaker via minimum equipment and non-altering software is the best 'truth' you can get.

But, as he said, you may prefer an altered truth. It is my opinion that all the tweaks, devices, cables, conditioners, produce just that, an altered truth preferred by this person, not by that person. Problems may exist that need to be addressed by this or that, i.e. power conditioner, but the vast majority have no power problems.

Helping others over the years, the emotional link to the evaluation process, investing research to have predetermined expectations, and, the simple joy of viewing, touching a beautifully designed device has a 'real' effect regarding happiness before it is turned on. So while I could prove to someone in a blind test that a Pioneer receiver could not be distinguished between ......, there was no joy viewing/touching/anticipating greatness from the Pioneer when it was visible, as opposed to those huge blue meters, chassis machined from a solid billet ... 

I digress except to say, OP surely has an open mind and given us all lots to think about, but it is good to admit the joy you get with the process and use of your choices, and discover which altered truth you prefer.

My JSE Infinite Slope Model 2's are the most truthful speakers I ever owned, but I prefer my horns and 15" woofers. And, their efficiency allows me to have my preferred tube sound. Both give me my preferred altered truth.
OP

Thanks for the work. I never compared, but I also get surprisingly good sound via fios cable service: tv/amazon/netflix/you tube .....

Please clarify the Netflix setup, chain from the street/air if satellite. All your streaming comes from the same service/cable correct?

Normally, presumably, your TV sends a signal to a surround sound receiver/amplifier system, i.e. 5.1 surround and speakers in your video setup.

Is the music system/speakers the same as the video sound system? Or you are soing out of the TV to your music system? Out of the TV, or out of your surround receiver?

Presumably you are selecting 2 channel version of the Netflix audio. Where is that choice implemented? The TV, a receiver, ...

It must be said, the individual program's quality is determined by what is being transmitted, both by the networks to the cable companies.

We also need to pay attention to what your TV/computer/receiver is doing, passing sound direct, or choosing/creating an altered version for you. Often I change back to 2 channel or direct and get better (probably original 2 channel) results. Turn it off, back on, let the kids watch something, net time it may be creating or selecting a network/netflix created surround version.