CD vs SACD in STEREO

I'm sorry if this is a little off topic. But as regards Dire Strait's Brothers in Arms. First off, I am a huge fan of both Dire Straits and Mark Knopfler. Despite that, I have to say that Brother's in Arms is a dreadful* sounding album. It was recorded on a Sony PCM 3324 DASH (Digital Audio Stationary Head) tape multitrack which had a maximum resolution of 48/16. Any higher resolution version of the recording is still limited by on the sample rate/wordlength of the original tracks on the multitrack. If the SACD sounds better than the original CD - which I think it does - its most likely because (a) it's been remastered the original 48K sample rate, rather than the CD which would have been downsampled to 44.1.

*Thin and sterile - it, The Nightfly and Bop Till You Drop all have a similar character. Brother's in Arms is made worse by a horrible 80's drum sound.

@kraftwerkturbo 

But quite surprisingly, the Oppo not doing ATMOS. Does that also mean no DSD? 

Not at all.  Dolby Atmos and DSD are completely different animals!  DSD is mandated on the SACD layer of SACDs, whereas Dolby Atmos is essentially high-resolution PCM probably delivered on Blu-ray disks.

Blu-Ray and SACD media are both high capacity, and they may share the same short-wavelength lasers in a universal player / transport.

A couple of oddities!  You can always exactly convert DSD to CD-quality PCM, but it does not exactly work the other way round.  This is because DSD samples at about 2.8-MHz and higher multiples thereof, whereas CDs samples at roughly 44-kHz.

Dacs that use sigma-delta technology are far more likely to natively process DSD than ladder-type dacs like R2R which are designed to mitigate PCM;s monotonicity problem.

To find out how your dacs work, you need to discover who makes them, and their exact model number.  Possibly from the user manual.  Then you can find their spec sheets, and start reading between the lines for what is missing.

According to ChatGPT your Onkyo uses AK4458 384 kHz/32-bit DAC (Digital-to-Analog Converter).  

These converters are made by AKM and the datasheet says they max out at 768kHz PCM and 11.2MHz DSD.  They are 8-channel dacs as well.  Quite superb, in my opinion.

I look forward to hearing how the little Sony compares to the Oppo.  My prediction - no audible difference.

@yoyoyaya 

There have been at least 3 re-masterings of Brothers in Arms for SACD.  I only know the 20th Anniversary one and the original CD, which of course was so popular it really established CDs in the market.  I still have Philips’ CD sampler which also features Dires Straits Once upon a Time in the West from memory.

Recorded on a 24-track Sony 16-bit machine, possibly at 48-kHz sample rate, mixing was done digitally.  The resultant acoustic is far from natural, to say the least, with pin-point percussion effects.

Digital mixing is problematic, especially if only whole numbers are allowed.  You have to multiply by fractions (really, divide by a whole number), and add the results together.  Very quickly the least significant bits become totally screwed up because of multiple rounding errors.  The more original tracks you start with, the smaller the starting numbers will be on average.  I believe this is why classical recordings made in a natural acoustic have been excellent on CD from the get-go, whereas pop/rock is the opposite.

There’s almost no technical information on mastering for the anniversary SACD.  But the results are clearly better than the CD

Only very recently has it become feasible to use floating-point numbers for mixing.

On the Brothers in Arms CD: I agree, it is NOT an audiphile masterpieces, just a MUSIC masterpiece. I don't like how BRIGHT the mixing was done.

And now looking back 45 years when my friends and I were really into music equipment (built our own active crossovers using low noice OP amps, built amps (for our active 3 way speakers, etc) made our printed circuits, dragged the speakers into the backyard to MEASURE with fancy microphone, having BLIND A-B setups, etc), I am reminded why we listened to CLASSICAL MUSIC (on CD). NOT because we liked the music, but because the MATERIAL (recordings) were excellent. While pop/rock was playing with their multitrack and mixing it to death. 

@Richardbrand Brothers in arms was mixed in analogue on an SSL 4000 and transferred back to digital. 

But 32 bit floating point is not particularly new - I've been mixing with it with on Pro Tools 12 it for quite a number of years now. 32 bit floating point mixing is in Pro Tools since version 10 - late 2011 introduction.