Why is that that they don't make analog turntables, or/and open-reel tape decks?
* By the way, Studer is remaking some of their machines. 😎
I did indeed post the design - it's still evolving, but the gist of it is here: http://www.diyaudio.com/forums/tube...r-i-v-converter-differential-current-dac.html
Work in progress, some things could be improved..
Line stage is transformer coupled, but no TVC so far.. Only one cap (Vcap) directly in Line stage / power amplifier signal path. (Sources generally have one or two if mine, who knows if off the shelf.. 😀 )
I thought the DL301 is better due to the eliptical tip the DL103 is just conical.
I would like to buy the DL103 because they have a nice price tag.
Yes I did google on on experiences with the DL103 and RB300 I did see some positive reaction, it is not so easy to judge internet reactions.
Your last paragraph is highly debatable, as we've never gotten those results in our comparisons.
Best Regards,
TerryO
Does vinyl sound better then your new dac?
Did you try to make a cd from your pick up and play it on your dac for comparison of sound qaulity?
Dynamic range, noise floor, S/N ratio, resolution are hardly debatable; between analog and digital music reproduction from both their quality recordings and masterings and playback sources.
I am wondering what signal to noise ratio needs to be achieved in playback beyond which improvements in SNR are no longer perceptible, and whether some analog playback systems potentially achieve this level of performance.
Similarly one could ask what the maximum dynamic range of a medium needs to be in order for further increases either to be perceived as a nuisance (upper end) or lost in the ambient (not electrical!) noise floor.
And are existing technologies generally capable of generating distortion products at or below the listener's level of perception whether analog or digital.
Similarly one could ask what the maximum dynamic range of a medium needs to be in order for further increases either to be perceived as a nuisance (upper end) or lost in the ambient (not electrical!) noise floor.
And are existing technologies generally capable of generating distortion products at or below the listener's level of perception whether analog or digital.
It's all in the ears of the beholder for his personal auditory pleasure and leasure. 🙂
Eye in the sky? 😉
Eye in the sky? 😉
Is this some sort of juvinile ******* contest?
I have no idea why having been to Japan has any bearing on this.
However, the answer is yes, several times.
OK, Here's one for you:
Are you old enough to vote yet?
I've moved on from CDs, but the vast majority of my digital library is 16 bit and 44.1kHz. I have made .flac files of needle drops at 24/96, and they are extremely close to the original analog source, the most noticeable difference is a slight reduction in sound stage, strangely I prefer the needle drops to most HD downloads I have. Needle drops at 44/16 tend to sound drier, w/shrunken sound stage and seem further in general from the original. (Perhaps I am fantasizing or the 2496 just works better at higher resolutions and sample rates.) Note I have some live recordings from the internet audio archive at 48/24 that sound quite good. I am using an M-Audio 2496 for the conversion to digital. (I'm still very impressed with the performance of this card after many years.)
I have three primary sources in my system listed in order of preference; vinyl with the aforementioned TD-124, SACD via a modified Sony SCD-777ES, and my media server feeding my home brew dac. I also have a Kenwood KT-8005 tuner, sometimes referred to as the poor man's Accuphase.. 😀 I recently abandoned R2R as I don't feel I have the financial resources to do it justice, and the M-Audio 2496 does a much better job recording stuff than my restored ReVox G36 MKIII ever did. (Currently available audiophile recordings on tape are far beyond my reach.)
OK this can mean you do not have significant looses in your DAC you can hear.
The reduction of sound stage can be caused by the AD conversion of your sound card. And used capacitors there.
I also like 48/24 pcm.
Last edited:
The caps are there when the board runs at 24/96 so I assume they affect the sound equally regardless of sample rate and bit depth. I believe something else is going on and it is fairly consistent with my observations about CD sonics. Performance at 24/96 is REALLY good. 😀
I have a fairly small SACD library of about 36 recordings, all but one have a CD layer as well. The 777ES is not a speedster when it comes to changing modes so fast A/B comparisons are not possible, however I am almost always aware in short order that I am in CD mode when playing an SACD on this machine, something missing like dynamics, sound stage or top end. (The player is as heavy as it looks >23kg so it never leaves its shelf..)
The player has five digital filter settings for CD playback, and the pcm is converted to DSD prior to conversion to analog.
Attachments
Is the circuit the same in SACD mode as in CD mode. Maybe it does have different chip setup for that?
You can save the normal format on your hard disk play it back through your DAC en compare it to the SACD. I did test with different coax cables on the spdif carbon, copper , 800euro siltec. It sounds remarkably different I like carbon best if you like natural sound if you like brighter silver also helps there. I can repair the sound stage you are missing.
Last edited:
PCM is converted to DSD in this player, same direct stream D/A converters (4 differential converters) and I/V conversion are used. Interestingly it also has 5 different selectable digital filters for CD playback. I've never settled on a preference, but I hardly ever use CD mode.
I've bypassed the entire audio path, revised the I/V converters using LM4562 directly into transformers for some filtering and balanced to unbalanced conversion. Most of the Elna caps I replaced with Black Gates. I've lost track of how long I've owned it, but I purchased it from the original owner, a friend who also had an SCD-1, and at least two other 777ES's, it was probably the lowest hour unit he had. Other than a minor mechanical issue with sled drive train gears long ago it has been trouble free. (It still has not got a lot of hours on it.. lol Did not use it at all for two years. It will see regular use, other system changes revealed just how good it actually was.)
I've bypassed the entire audio path, revised the I/V converters using LM4562 directly into transformers for some filtering and balanced to unbalanced conversion. Most of the Elna caps I replaced with Black Gates. I've lost track of how long I've owned it, but I purchased it from the original owner, a friend who also had an SCD-1, and at least two other 777ES's, it was probably the lowest hour unit he had. Other than a minor mechanical issue with sled drive train gears long ago it has been trouble free. (It still has not got a lot of hours on it.. lol Did not use it at all for two years. It will see regular use, other system changes revealed just how good it actually was.)
Our Audio Club had a Sony 777ES for several years until we replaced it with an OPPO recently. Slow as can be, but we never had a lick of trouble with it.
Best Regards,
TerryO
I also had for a while 103 in rega 300 on Nottingham deck!
Like I said it is really, but really low level stuff!!! On that configuration I did several comparison against Marantz SA-17 with both cd and sacd! Hands down, there was no competition there! Without resourcing to the sacd, the regular cd audio was a billion time better, let alone the sacd!!
- Status
- Not open for further replies.