Machina Dynamica New Dark Matter CD and Blu Ray tray treatment?

I understand where you’re coming from but when I say signal to noise ratio I’m referring to the optical SNR and the downstream analog SNR which depends on it. By reducing background stray light in the CD transport you increase optical SNR.

Of course, as you say, all sources of noise and distortion in the system should be controlled and minimized, too. The claimed SNR of 90 dB for CDs is achievable only if the system can handle it which, obviously, in most cases it can’t. That’s why the humble LP or cassette oft sound more dynamic than CD. As for the claimed Dynamic Range of 90 dB, many CDs are overly compressed so there goes your dynamic range spec down the tubes!

It’s now clear to me that one must wake up pretty early to beat Geoff to posting here. 

You have to agree that a lot of what Geoff says , on this subject at least, does make sense.

My NDM treated Pioneer DVD/SACD player does sound fuller and more musical all round.

Now tbh my acquisition of a C.E.C belt drive CD transport sounds even better on Redbook CD and I wish I had some of the NDM left to try in this but alas it all went into the Pioneer and the Sony Discman.

But I was suitably impressed enough to say that I will buy a pack from Geoff when I get round to it.

+1

michaelgreenaudio

A few days ago I received my sample from Geoff and my responsibility is to find where I think the product might work the best and for who, looking for what. Geoff at this point is as high on my list as the company who sent us their $25,000.00 mono block amps. Wouldn’t it be totally cool if Geoff created the perfect CD tune? I think it would be anyway. Wouldn’t it be great if Geoff really was the smartest guy on campus? Wouldn’t it also be great if all Geoff has been trying to do is get us to relax a little, and we simply didn’t understand his sense of humor? Wouldn’t it be great if at the end of the day we realized we were all family? If so, I think some of us should still hold Geoff down and give him a serious torture tickling from time to time.

Michael Green

>>>>>>Apparently it takes longer than I would have guessed to get the answers to all of Michael’s questions, were they a foreboding of things to come? 😳  If finding answers was easy in this hobby we’d all have the best systems in the world. As I oft say, there are many reasons why getting to the bottom of almost anything in audio is not so simple. Aside from any sort of ulterior motivations folks might have, you know, perhaps professional rivalry, trolling, psychological predisposition, tweakaphobia, thou shall have no other gods before me syndrome, the nocebo effect, personal grudge, etc. and just looking at the obvious problems with testing ANY audio product - cable, CD player, speaker, CD tweak, iso stand, audio feet, etc. - The tests results will only be as good as the test system, whether there are mistakes in the system, e.g., Polarity issues, consciousness Directionality of Fuses and Cables, room treatment IQ, vibration isolation IQ, hearing skill/ability in distinguishing subtle differences, skill in hearing obvious differences, testing a number of times to establish confidence in results, don’t even have to mention time of day, weather, and many other factors that affect sound.

Gonna raise me an army, some tough sons of bitches
I’ll recruit my army from the orphanages
I been to St. Herman’s church and I’ve said my religious vows
I’ve sucked the milk out of a thousand cows