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AURALiC owners unite! - Page 35

post #511 of 941
Quote:
Originally Posted by jtwrace View Post
 

Anyone happen to have Alpha Dogs and the Taurus MkII?  That's the setup I'm thinking about to go along with my AURALiC Vega.  

 

 

Yes! Very good indeed. The Alphas benefit from plenty of drive, and a very well controlled top end. Taurus hits both of those marks spectacularly well. 

 

It sounds weird to use a $599 headphone with such an expensive amp, but it really does make a great pairing. 

post #512 of 941
Quote:
Originally Posted by project86 View Post
 

 

 

Yes! Very good indeed. The Alphas benefit from plenty of drive, and a very well controlled top end. Taurus hits both of those marks spectacularly well. 

 

It sounds weird to use a $599 headphone with such an expensive amp, but it really does make a great pairing. 

Great!

 

Well, out of all the cans I've heard the AD's just sound "right" to me.  

post #513 of 941
Quote:
Originally Posted by jtwrace View Post

Personally I buy my AURALiC components from Sonare Coeli.  http://www.sonarecoeli.com/  Nigel is a great guy and very easy to deal with.  

Same for me
post #514 of 941

I picked mine up at the headphone bar in Vancouver which is nice as I was able to purchase and carry. I hate buying from the US as you never know what customs and courier are going to hit you with. The amp  is sounding really nice after about only 40 hours or so burn in. From personal experience with new components and cables I know there is improvement over up to 500 hours or so which is confirmed in Auralics manual for the amp. I usually notice landmarks of 40 hours 140 hours 300 hours and 500 hours. For only 40 hours burn in I'm very impressed.

post #515 of 941

It's now a toss up whether my headphone and amp setup sounds better than my  10 x the price speaker and amp set up or not. They're both nice but different. Everyone should have these problems. I guess it's the speaker gig when the wife is out and the headphone gig when she's home. 

post #516 of 941
Quote:
Originally Posted by mitchb View Post
 

It's now a toss up whether my headphone and amp setup sounds better than my  10 x the price speaker and amp set up or not. They're both nice but different. Everyone should have these problems. I guess it's the speaker gig when the wife is out and the headphone gig when she's home. 

That's my plan as well!! Both satisfy fully.

post #517 of 941

The amp is now sounding scary good at around 70+ hours. I did not know one could get this type of sound from headphones. Then again all matters concerned including a good source with good cabling all around are a definite factor. Of course my audio quality varies depending on the power coming from my wall which in itself is a large factor but the sound I heard today was pretty nice. It has been years since I've been this excited about my system but I've also upgraded all of my power cables recently. The Taurus was supposed to be the icing on the cake but it's more like the cake. My speakers are also sounding good so I must attribute the fact that my power cables are burnt in by now as well. The PS Audio Perfect wave dac and transport are no slouches either. I've done quite a lot of upgrades lately but today everything seems to sound better than ever including my speaker rig.

post #518 of 941

That's good to hear.  

post #519 of 941
Quote:
Originally Posted by jtwrace View Post
 

That's good to hear.  


Pun intended?

post #520 of 941
Quote:
Originally Posted by mitchb View Post
 


Pun intended?

No, I am getting a Taurus so it's nice that you're happy.  Just another positive review.  :-)

post #521 of 941

Hey guys,

 

I have picked up a new Vega and Taurus mk II for testing for a week before finally pulling the trigger to buy them.

 

First I am testing the vega in my speaker system. Vega > Prima luna Classic > Magnepan 1.7''s

 

First night I was absolutely blown away by the sound out of the vega. Huge sound stage, that really had 3d depth. Sound was so smooth with no harshness, lots of micro macro detail. Really got you involved in the music. Super Super happy. Many OMG wow moments. Just the best music I had ever heard!!! First time i had ever heard that the speaker system really disappeared and it was just the room of music! Just amazing!

 

Since it was brand new out of the box I thought wow this can only get better. So I left it on all night playing to burn it in a little more.

 

Second night.....noooooooooooo The sound was totally different. Harsher, sound stage was there but nowhere near as much depth, I could just not get into the music, I was changing songs after being bored with them after 10-20seconds. The night before i listened through every song. Also suddenly i had clicks and pops, dropouts from the exact setting (Didn't have this the first night and I even went to exact mode after just 20 minutes after turning it on). The second night I waited at least an hour before turning to the exact clock.....

 

Anyone else have this problem after 15 hours burn in? 

 

I have left it again today to get some more hours into it....will let you know if it goes back to the Vega i know from the first night and the audition at the hifi store....

 

-Dave

post #522 of 941

I would give the Vega (and Taurus) some more days before making any judgement. Let them play at low volume during the day and in the night when you sleep. That way you will quickly have given them additional 30-50 hour. Like cables, the subject of burn in is controversial for some people. But give them time to settle in, 15 hours is nothing in my book and if it can change that much from one day to the next, the only way to find out what´s going on is - Burn baby burn :evil:. And read the manual from Auralic, they must have some guidelines for how to use it brand new out of the box, if not mail Auralic about it.       


Edited by Larryonfire - 4/24/14 at 12:27am
post #523 of 941
Quote:
Originally Posted by Falcaw View Post
 

Hey guys,

 

I have picked up a new Vega and Taurus mk II for testing for a week before finally pulling the trigger to buy them.

 

First I am testing the vega in my speaker system. Vega > Prima luna Classic > Magnepan 1.7''s

 

First night I was absolutely blown away by the sound out of the vega. Huge sound stage, that really had 3d depth. Sound was so smooth with no harshness, lots of micro macro detail. Really got you involved in the music. Super Super happy. Many OMG wow moments. Just the best music I had ever heard!!! First time i had ever heard that the speaker system really disappeared and it was just the room of music! Just amazing!

 

Since it was brand new out of the box I thought wow this can only get better. So I left it on all night playing to burn it in a little more.

 

Second night.....noooooooooooo The sound was totally different. Harsher, sound stage was there but nowhere near as much depth, I could just not get into the music, I was changing songs after being bored with them after 10-20seconds. The night before i listened through every song. Also suddenly i had clicks and pops, dropouts from the exact setting (Didn't have this the first night and I even went to exact mode after just 20 minutes after turning it on). The second night I waited at least an hour before turning to the exact clock.....

 

Anyone else have this problem after 15 hours burn in? 

 

I have left it again today to get some more hours into it....will let you know if it goes back to the Vega i know from the first night and the audition at the hifi store....

 

-Dave

 

 

the Exact Mode is sensitive, you need to let it work, best use it after 1-2 hours of turning on. I've had drop-outs, I've had some weird frequency "sweeps" but when you get used to it, it should work great, actually what is weird I've woken up and listening to some 88.2k MLP music with the exact mode turned on and it works fine, haha, I bet on something higher it will go crazy (the clock) :P

 

 

But 15 hours of burn in is really as if you just bought it, so don't judge a book by its cover, read a few more pages ;)


Edited by XVampireX - 4/24/14 at 1:58am
post #524 of 941
Quote:
Originally Posted by XVampireX View Post
 

But 15 hours of burn in is really as if you just bought it, so don't judge a book by its cover, read a few more pages ;)

 

I like this quote. Very true, the Vega is all the things you experienced on the first day, you just have to give it some time.

post #525 of 941

Here are some thoughts regarding the Vega Sound Processor from the designer.

 

About the burn-in period

 

I don’t quite believe in the sound change after ‘burn-in’ for electronics, especially for passive components such as cable. Such kind of sound quality change is totally subjective and purely psychoacoustics (I trust instrument first) as the human ear needs some time to accept new sound, that’s why most people feel the machine sounds smooth after a period of use rather than the feeling of better treble extension. However, I do think the capacitors inside the machine require time to for re-activation through charging and discharging for a period of time without use, so please keep the unit in operation for roughly 48 hours to re-activate the components.

 

About the warm-up

 

VEGA requires a warm-up to achieve best performance for two reasons; First, the Femto-grade clock needs a long time to become stable, like the crystal inside a GPS and communication station. It requires at least one hour powered-on to meet specification. Second, with the Class-A output module, the bias current will reach its correct value when in thermal balance, this requires about one hour to heat-up.  One interesting measure is the THD on XLR and USB port jitter performance when the machine is completely cold, and then running for 3 hours. I believe you will see a measureable THD difference when the XLR output is driving heavy load (below 600 ohm); the jitter performance will also be different slightly.

 

To keep the unit at its best performance, we have designed a function named ‘SLEEP’ (enabled by default). By setting the unit in Sleep status, the clock and analog circuit remain powered on. I suggest using the sleep function during daily play so VEGA will sound best any time you’re ready for a listening session.

 

Special care when using USB input

 

VEGA supports all PCM format from 44.1K to 384K as well as DSD64 and DSD128. But, you may experience trouble locking to 384K sampling rate when the unit is totally cold. This is due to the Femto clock not up to its optimal working temperature. Please allow a few minutes for initial warm-up and it will work perfectly.

 

To playback DSD64 and DSD128 files though DoP protocol, the host computer should be  optimized and the hardware should not be too old or there may be drop off during playback.  The actual drop off may be heard as a few seconds of white noise starting from low volume to full scale and going down again. I would suggest using the latest version of Audirvana with a MAC computer and J.River or HQPlayer (with better sound quality) under a Windows OS.

 

VEGA is more sensitive to the host computer than other USB DAC’s because of the Femto clock. We are optimizing and upgrading the internal firmware for the perfect balance of performance and wider server compatibility.

 

Key feature #1: Flexible Filter Mode

 

The Flexible Filter Mode is the most important software feature of VEGA. There are six groups of filters inside our processor, four for PCM and two for DSD. Each PCM filter mode contains 4 different filters optimized for different group of sampling rate: 44.1k and 48k are within one group, 88.2K and 96K for another group. By using this method, the performance for each sampling rate is maximized, that’s one main reason VEGA sounds so good. I would greatly appreciate it if you can measure the frequency response of different sampling rates under each filter mode, showing the result in a chart and explain to the reader.

 

For more information (including technical detail) of the Flexible Filter Mode, please read the white paper I am enclosing:

 

http://www.auralic.com/download/flexible_filter_mode.pdf

 

Key feature #2: Manual Femto Master Clock precision (for pro-user only)

 

The Femto Master Clock inside VEGA is controlled automatically to optimize lock-in ability and jitter performance, but we also offer advanced users the option to manually setting the clock lock-in parameters. After a one-hour warm-up, there will be additional clock options under ‘SYSTEM’>’CLOCK’ menu, they are ‘EXACT’ and ‘FINE’.  By setting one of these two options, the control circuit will force PLL’s bandwidth to a very narrow range for maximum jitter performance. I do hear significant improvement on EXACT option compared to AUTO on specific sound tracks (such as a well recorded classical piano solo), but not all kinds of music can benefit from them.

 

Keep in mind, the EXACT and FINE options will not work on an older processor, or one with a noisy power supply computer (not just hardware, but mostly dependent on software environment).  I have tested many computers for the clock options. The best result is comes from a Windows PC, specially made for audio playback: with a kernel, and disabling unused applications and services.  I can play all PCM and DSD format under EXACT mode without issues on such a computer. I have tried the clock options on two Mac computers, one is a vintage mid-2008 Macbook and the other is a mid-2012 Mac Mini. The first was only OK with EXACT mode for 44.1K and 48K sampling rate and totally not possible for higher PCM as well as DSD. The Mac mini is fine up to 176.4K and DSD64 but not for DSD128 and 192K PCM. The EXACT and FINE clock options will be disabled when you play 352.8k or 384k PCM.  Whenever you set the clock to EXACT or FINE, it will only works under AUTO mode as I have not found a computer today that can work with these two options.

 

I would suggest you to try out the best setting on your own system if you wish (purely for fun). We only recommend people use AUTO option when we promote our product and consider these two options as ‘playable’ function for professional users.

 

 

About the XLR and RCA outputs

 

The XLR and RCA output channels are individualy buffered, but only XLR through our ORFEO Class-A module. Though both output ports’ sound quality are equally the same, I would highly recommend using the XLR if possible. Both ports are designed to drive 600ohm load without  compromising the performance, but the XLR can work even lower, to 300ohm and less.

 

Attention when you want to remove the cover to take photo

 

The top cover has a single installation direction (without any indication); if you re-install the wrong direction, the edge will be very sharp and may injure your finger, so please make sure to mark the direction when you move it.

 

Finally, I hope our VEGA processor will bring you much joy during your review session. If you have any question on anything, please just drop me an email at xuanqian.wang@auralic.com

 

Best regards

Wang Xuanqian

25th September 2013

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