Amphenol glass toslinks - First impressions

Mike - I know what you mean. I am running my first one between my transport and my dac. It is beating any digital cable I have.
I have a second glass optical that I am going to run between my Mac Mini and my dac. I have been enjoying the first glass since this morning, then the Fedex guy pulled up with a pair of Gabriel Gold Revelation MK2 interconnects, so it's hard to be analytical right now... I am just enjoying the music and the whole experience... I know you know what I'm talking about.

I was very surprised at the improvement over standard fiber that everyone is selling. I was also surprised to see how solid they are built. I got the Amphenol polished glass toslinks. They are really beautiful.

It really is amazing to get to a point in quality that you can really hear your sound changing with each new upgrade. I wish I had a million bucks just for HiFi. I love it. To me, it's like a savings account that you can enjoy building in value. You not accumulate equity, but you also get the most important reward from the beautiful sounds that you get to hear.... really priceless.

Enjoy your glass, Mike !

If glass toslink sounds better than standard toslink, and they are both digital, could a better quality usb cable sound better than a standard usb cable?

I have been a digital guy most of my life, 1's and 0's, so I cannot figure out how the same 1's and 0's sound so different coming through different cables, but they do.

When you say ' digital cables are in general better with jitter than toslinks ', are you referring to 75 ohm coax cables and usb cables? I was thinking that toslinks were considered digital also.

I have a Valab DAC (2009) which is based on the old Philips tda1543 and dir9001 chips. I am just beginning to study it but I really like it so far.

Another thing you say is interesting. The right (jitter rejecting) dac will make the quality of its incoming cables or source a non issue. That seems to be a bold statement.

Thanks for the reply, but if you are correct, I have a few thousand dollars worth of equipment and cables I need to sell.

Very interesting information!

I just replaced my best transport (Teac VRDS10) with my least expensive (Oppo 981). I also replaced my 75 ohm digital cable with the cheapest generic 110 ohm cable I could find in my house. I am going to listen to some of my favorite CDs and see if I can hear a difference.

I would think that it would be a difference of night and day. I also have some extremely good digital cables coming in the next few days and a high end USB cable also.

I just remembered that I have an old Sony Jukebox packed away that might have a digital output that I could test your claim with.

My Jadis is just warming up right now as I type, but the music coming through the dac is very clear using the less expensive cable and source. I am going to do my a/b comparisons using a Beth Orton that has proven to optimize the sound stage and clarity of my system.

My 'a' system will be my Teac VRDS10 transport output through a good digital cable into the Valab coax input.

My 'b' system will be a Oppo 981 DVD/CD player output through a CHEAP rca cable that is typical of any that come free with a low fi audio device. I know the Oppo is not low fi, but it is the only source that I have capable of outputting a CD through a coax. So, the very low fi cable should exhibit a poorer sound. Let's see.....

I have to agree with much of what Kijanki says. The 'b' system sounds excellent also. I am going to swap a few things around and see where this leads.

I feel pretty foolish reporting back before final testing but the sounds coming from my cheap cable and my Oppo do sound surprisingly good. I will swap back to my optimal system 'a' and compare again tonight.

I really think that Kijanki has stumbled across something that a lot of cable and source equipment sellers might be afraid to hear.

I would like to see a new thread exploring Kijanki's findings.

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I am hearing so much with this combination. I just installed a Virtual Dynamics Master digital cable between those components and I am hearing so much more than I have ever before, even with the Amphenol glass.

I am learning that it is more than just 1's and 0's entering the DAC. Even though I don't exactly understand how or why the sound is different, I am pretty sure that jitter has to be the root cause of the difference.

Kijanki came to my home and explained slew rise times to me. I am a ex-digital technician and I had always worked primarily with clocked circuits. The signal from my Teac to the Valab coming through either glass or copper is asynchronous. If I understand correctly, the rise time on the toslink is pretty slow. Also any jitter in the Teac can bleed out on the rising edge of the low to high transition and enough noise on that part of the signal could possible be enough to trigger a false "1".

Any further comments on my description is very welcome... I think I am beginning to understand this a little bit better.

I prefer the coax with a good cable. I am using a Virtual Dynamics Master digital cable and it give the most musical sound.

The Virtual Dynamics seems to bring out some of the background instruments into their own space a lot more than the optical glass does. And not only does the does bring it out more, it also makes that instrument livelier and very easy for me to shift my focus to in order to enjoy that musician's emotion or personality.

I am not familiar with the Audio Alchemy device, but I can tell you that if it truly eliminates or reduces jitter, it will help. I am just learning about jitter, but it you direct your jitter reduction at the source, it will reduce the amount of jitter being amplified.

I also have a Mac Mini with a RSA Poiema USB cable that I run into the Valab. I just received it the other day, so I will be comparing that to the other inputs to see where the differences lie.

What type of amp are you using? I am using tubes. I would be interested in hearing how you are enjoying your Teac with your Valab.