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Lavry mini-review from the Lavry forum:

post #1 of 12
Thread Starter 
I asked permission to copy this over to here. There was no objection to me doing this over there. I hope there is none here. I was thinking that someone with his credentials might have some thoughts that could be appreciated here. I have noticed that some times when I refer to that forum some appear not able to access it so I bring this to those in particular.

_____________________________
chrissugar

Joined: 12 Jun 2005
Posts: 8
Location: ROMANIA
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I decided to share my own experience with the DA10 after some month of listening to it.

I have access to some really high end listening equipment (Wilson Audio speakers, Spectral amp, Boulder preamp and DAC, Clearaudio turntable and many others) and I almost always try to make listening tests in controled conditions, with high quality 24bit/96k recordings.
I have for more than half a year the DA10, and recently I bought a mastering level monitoring sistem that has also a top quality DAC, the Cranesong Avocet: http://www.cranesong.com/AVOCET.html
I have the latest REV6 DAC board. (Bob Katz said that in controled listening tests the quality of the Avocet with the REV6 DAC was the same like the top DCS player costing 25K$).
To make a long story short, the DA10 and the Avocet were clearly more authentic than the Boulder1012 DAC (15K$ as new)
http://www.boulderamp.com/pdf/1012DataSheet.pdf
The stereo image of the DA10 was more stable and significantly better defined than on the Boulder. Also, details you could hear on the DA10, were lost on the Boulder.

One more important thing. While the Boulder changes the sound depending on the type of digital cable (opto, SPDIF, AES) or length of the cable, the DA10 is totally imune to such things. I played the same 24bit/96k file from the same hard drive at the same time through TOSLINK, SPDIF and AES outputs into the three inputs of the DA10. The AB testing was very simple (in fact ABC testing) by switching realtime the digital input selector on the DA10. Couldn't detect any difference between the different inputs, which is an indicator that the DA10 is imune to jitter, so any reasonble quality cable will produce the same high quality sound.
Still can't decide between the DA10 and the AVOCET but at this moment my impression is that the DA10 has a hair more resolution and spatial detail while the AVOCET has maybe a hair nicer presentation. But we are talking about details.
I personally consider the DA10 a fantastic value. It will give the same excellent quality to the audio professional or amateur audiophile.
Many thanks Dan for this great product.

chrissugar

P.S. if the future Lavry Black (or whatever it's name will be) AD converter will deliver the same quality, you can be sure I will buy one.

__________________

No problem, yes you can. I don't think I really want to add something more to this because I really don't like the audiophile kind of reviews Very Happy . I tried to be as objective as possible. For me listening to music is not only a hobby but it is also my job, so it is important to have the most acurate reproduction system I can afford.
I have friends who preffer a warm tube sound or other kind of sounds. I'm looking for authentic sound, which means the record to sound like it sounded in the space where it was recorded (I'm talking about acoustic music in acoustic space, recorded with minimal two mic technique). The closer to that, the better. For me any device that makes things sound "better" than the original record is not better. DACs and ADCs should not affect the sound in any way (not even euphonic from an esthetical point of view).

chrissugar
post #2 of 12
Thread Starter 
I did a little research into the guy above. Here are pictures of his equipment rack.








Below this link he says:

Thank you for your apreciation and interest in my equipment.
CMS-LAB is my little music studio. I'm a small operation and all the equipment is mostly built for my own use, not really for sale. Although I built and sold some equipment to some friends and some studios, this is not my main job. I'm a musician and sound/mastering engineer, and I built the equipment mostly to suit my needs. Also people would expect that my studio tools are probably cheap because they are built in Romania, but it is not the case. Since I started this, my intention was to build equipment with the best components available in the world, and not cutting corners like most companies do. Also there is a lot of work in these units, from design, building by hand, measurements and listening tests. Some are based on classic designs some are original.

I have in work as future projects eight (8) more different units like, opto and varimu compressor, transformerless mic preamp, inductor based eq, mastering console, etc, etc.
The mastering console is the biggest and most expensive project to date, more than 150 relays used for routing and level control, everything microprocessor controlled. Analog audio isolated by digital electronics. All attenuators have programable 0.5 or 1 dB steps.
If anyone interested I can post some pics of my toys.
post #3 of 12
[jaw drop]
post #4 of 12
Hi Slwiser and all

Thank you for apreciating my review. You really did some research to find my posts and pictures at other forums.
This is my first post here although I am a registered member for a year and a half. Unfortunately I rarely visit this forum, because I'm too busy.

I will also add some more info related to this subject, if this will help someone to make a better idea about the LAVRY DA10 in relation with other tools. Some of my apreciations are strictly objective, I mean technical related, others are subjective so you should take them with a grain of salt.


technical facts:

1-As mentioned above I did a test with all the digital inputs of the DA10 with different cables to determine if the DAC is sensitive to jitter and in CRYSTAL LOCK mode it is totally imune. This is the best mode for audio.

2-I also created a test setup with 3 different players: computer with RME soundcard and Foobar player, ALESIS MASTERLINK harddisk recorder, and a PANASONIC DV575 as CD player. The three devices were connected to the DA10. Computer=SPDIF, ALESIS=AES-EBU, DV575=TOSLINK .
I played sinchronised the same program material from the 3 players and there was no difference between the sources.

3-Not all the souncards are bit transparent. Many people think it is only because of software or drivers but it is not always the case. For example some of the soundcards I tested are not bit perfect because they have a hardware mixer application that does dither all the time even if there is only one in and one out activated. It is the case of M-Audio Audiophile soundcard series. Also some month ago I did some null tests to find out if the optical out of the new Intel macs is bit transparent or not. It is not. After the null test there is a residual noise somewhere at around -93dB (not sure about the value, I should check the numbers)

4-to my surprise there are many cheap cd or dvd players capable to produce bit transparent audio at the digital output. So in the context of a jitter imune DAC there is no reason to invest in expensive transports.

5-In my opinion the best transport is a computer, because it will not have to strugle with real time playback of a CD that degrades with time, mechanically, chemical, optical, making it harder and harder to decode all the audio data without errors. You just have to extract the audio data to WAV with EAC/Plextools and play it with a bit transparent player. You need a well configured computer, a quality soundcard with solid drivers and digital out (AES, SPDIF, TOSLINK), and it will sound asa good or better than any digital transport.

6-The DA10 starts to sound right after beeing powered for a while, that is why I never power it down.


subjective:

1-I listened not only to the above mentioned DACs but also to various others including some DIY versions.
The Benchmark DAC1 is an excellent converter but in my opinion the DA10 is a step above in all aspects. For me there is no contest between the two, I would chose the DA10 any time without doubt.

2-for me the DA10 compared to tons of medium cost players sounds not better but significantly better. Couldn't find a player from Atoll, Creek, Primare, Rotel, Exposure or any other player under 1500euros, that can come close to the DA10. I say it again, it is not that they do not equal the DA10, they don't even come close.

3-listened also to some DIY variations of DACs including the Monica and a famous kit from DIYAUDIO. They all sound like crap to me and the worst are the "non oversampling variations". Some think they sound nice, I think they have nothing to do with a right sound.
If high-end DAC and ADC design would be that simple I would do it myself. I build analogue proaudio equipment (mastering quality tube/jfet equipment), but I wouldn't even try to, because it is very very hard. Of course you can DIY a DAC as an exercise, but you will never reach a reasonable level of audio quality.
Of course the last three points are subjective.

chrissugar
post #5 of 12
Thread Starter 
Hello chrissugar

Thanks for coming in and providing some additional information.

I have one question about item 3 of your note above.

Are you saying that M-Audio USB Audiophile is not bit-perfect? This is how I am reading this. Or the M-Audio Transit? The M-Audio drivers are what I thought considered are some of the best around. Interesting observation. I you could please expand on this a little. I think item 3 may generate a bit of conversation around here.

Thanks

Quote:
Originally Posted by chrissugar View Post


3-Not all the souncards are bit transparent. Many people think it is only because of software or drivers but it is not always the case. For example some of the soundcards I tested are not bit perfect because they have a hardware mixer application that does dither all the time even if there is only one in and one out activated. It is the case of M-Audio Audiophile soundcard series. Also some month ago I did some null tests to find out if the optical out of the new Intel macs is bit transparent or not. It is not. After the null test there is a residual noise somewhere at around -93dB (not sure about the value, I should check the numbers)


chrissugar
post #6 of 12
I only say, the external Audiophile Firewire is not bit perfect:
http://www.m-audio.com/products/en_u...hile-main.html
This is a unit I tested a couple of month ago. I don't have any personal info about the USB version.
Also I remember many years ago a friend tested the old Audiophile 2496 pci card, and told me it is not bit perfect, but I can't say it for sure as long as I don't test it myself.
I have no personal experience with the M-Audio Transit (although a friend of mine use it for a long time) so I can't say anything.


As a rule, a soundcard with only one input and one output (SPDIF in and out) should be bit transparent if well implemented.
Most of the problems are with soundcards with multiple ins and outs where all the signals are added together, DSP processed by level control and panorama control, and the high bitlength word from the accumulator reduced with dither to the output resolution.
Unfortunately some soundcard mixers are adding dither even if there is only one output selected, no DSP level control, or all inputs muted. This is the case for the Audiophile Firewire.

If I will have time , I will try to make a null test with my friend's Transit and report back.


chrissugar

P.S. One thing I'm sure of, is that the RME Hammerfall series souncards are bit perfect. I used them from the very first version, since 1998 to the recent Hammerfall DSP series and they are flawless. Also extremelly solid drivers. Never had a crash because of a RME card in eight years.
post #7 of 12
any comparison to $3000ish CDP?
post #8 of 12
Quote:
Originally Posted by chesebert View Post
any comparison to $3000ish CDP?
No direct comparison, but listened to lots of players starting from Ayre and Linn, to Naim and Accuphase.

I think the most relevant comparison was with the Boulder DAC which is considered a top converter. For me the Lavry was better in many aspects.
You start to really apreciate how good is the DA10 compared to other DACs when you play hires 24/96 audio files.
You should read the Boulder 1012 D/A review at Stereophile. It is a heavy tool, and at 15000euros is not a toy by anyones standard.
http://www.stereophile.com/digitalpr...505/index.html

chrissugar
post #9 of 12
Hi chrissugar,
you are more than welcome to the forum. I'm concerned about the lack of remote control in the Lavry. I thought a possible solution would be to use a Squeezebox as transporter and use the remote control of the Squeezebox. Three questions to you:
-Do you know if really the Squeezebox is bit perfect?
-Using the digital volume with the control remote suppose lose of bits?.
-Can you give any advice on USB-soundcards with solid drivers and bit perfect?.

Thanks!.
post #10 of 12
Thanks for the excellent review chrissugar, I'm also enjoying the DA10's sound as well as its many functions in my home system.

edit: I'm under the impression the Audiophile USB is bit perfect. It passes the DTS test posted here after ASIO4ALL is used.
post #11 of 12
Quote:
Originally Posted by Cortes View Post
I'm concerned about the lack of remote control in the Lavry.
Do not forget that the DA10 at the origin is not an audiophile product but a pro audio device that by coincidence has such a high standard that it works great in audiophile listening setups. That is the main reason why it has no remote facilities. Personally I would take any time excellent sound quality over convenience. I mean, I prefer to stand up and go to change volume if this is the price for better sound.

Quote:
Originally Posted by Cortes View Post
Hi chrissugar,
I thought a possible solution would be to use a Squeezebox as transporter and use the remote control of the Squeezebox. Three questions to you:
-Do you know if really the Squeezebox is bit perfect?
-Using the digital volume with the control remote suppose lose of bits?.
-Can you give any advice on USB-soundcards with solid drivers and bit perfect?.
I have no idea what the Squeezebox is. I supose some kind of music player device with digital out. I don't know if it is bit perfect.

As a rule attenuation of the digital signal before sending it to a DAC will always reduce dynamic range, and increase distortion. I would avoid it.

Unfortunately I can't recomend any USB device because I didn't do a null test for any of them, but if in the near future I will do, I will report back.

chrissugar
post #12 of 12
Quote:
Originally Posted by J-Pak View Post
I'm under the impression the Audiophile USB is bit perfect. It passes the DTS test posted here after ASIO4ALL is used.
Do you use ASIO4ALL with the Audiophile USB or the native m-audio drivers?
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