Support Head-Fi.org by
starting all of your
Amazon.com shopping by
clicking here.
____________________________________________________________________
Today's Featured Head-Fi Blog: Jude's Blog
____________________________________________________________________
Please help
support Head-Fi by becoming a Contributing Member
CLICK
HERE -- Contributing Members, thank you
for your generous support! --
What is the return policy with you and your distributors on the DA-10? Are any upgrades being made to the unit before the next batch is shipped? Thank you
Brian
Brian,
We have finished software upgrade which corrected a few bugs. This software was put in all the units that were returned from the first build.
__________________
PS Audio UPC200 | Rega Apollo | Lavry Black DA10 | MPX3 | HD650
What is the return policy with you and your distributors on the DA-10? Are any upgrades being made to the unit before the next batch is shipped? Thank you
Brian
Brian,
We have finished software upgrade which corrected a few bugs. This software was put in all the units that were returned from the first build.
Amazing software even fixes incorrect screen printing or can swap sides on the analog outputs on the PCB.
in an environment where sound quality trumps all, it ultimately comes in third place. Considering they are commonly available on the used market for well less than retail and that they are the smallest and most durable of these three options, the DAC1 certainly still has a few niches that make sense, like transportable use for the busy audiophile or roadie/technician.
Despite the DAC1's third place, purely audio showing, I can see myself upgrading my redbook playback but holding on to the DAC1 primarily for the jitter issue (questionable transports) and it's ability to handle the audio of DVD and DVD-Audio (I'm 2CH only). I've found those features very handy indeed.
Despite the DAC1's third place, purely audio showing, I can see myself upgrading my redbook playback but holding on to the DAC1 primarily for the jitter issue (questionable transports) and it's ability to handle the audio of DVD and DVD-Audio (I'm 2CH only). I've found those features very handy indeed.
I'm not telling you what to do with your DAC1, I just wanted to point out that all three of the DAC's here can do what you described, just so that nobody else gets the wrong idea.
I'm not telling you what to do with your DAC1, I just wanted to point out that all three of the DAC's here can do what you described, just so that nobody else gets the wrong idea.
I was not telling you that you were telling me...I was just telling you I liked the write ( ) and tie in easily with "the DAC1 certainly still has a few niches" part is all. I didn't notice where you mentioned DVD & DVD-A compatibility. I guess it was understood to be standard on all three items.
I was not telling you that you were telling me...I was just telling you I liked the write ( ) and tie in easily with "the DAC1 certainly still has a few niches" part is all. I didn't notice where you mentioned DVD & DVD-A compatibility. I guess it was understood to be standard on all three items.
Yeah, all three can take in signals up to 24-bit 192kHz, so that would indicate compatibility will all unprotected DVD-A that I'm aware of. When I spoke of the DAC1's superior jitter rejection, I think it is something that would only really come into play on very long cable runs that are pretty unusual in audiophile system, because with short cable runs, even with the higher variability in performance, the other two still sounded better than the DAC1, so I suspect that it would take some quite long and jittery cables to lower their relative performance that much.
I appreciate your appreciation and those that everyone else in this thread has posted. I did this as much, if not more for you all as I did for myself.
When Dave Lavry states that it may take up to four minutes for the change from narrow to wide to take does that imply that he has a four minute data buffer that he uses to query for the clock to eliminate jitter?
Anyone have any ideal?
I'm on my way to order that DA10 for myself within the month.
When Dave Lavry states that it may take up to four minutes for the change from narrow to wide to take does that imply that he has a four minute data buffer that he uses to query for the clock to eliminate jitter?
Anyone have any ideal?
Yes, the CrystalLock system uses a large buffer. A buffer alone isn't enough though, as you may be aware (a buffer with a fixed clock will always be either full or starved), so the clock itself is steerable slowly within a small range. There's a good description of how CrystalLock works on the Lavry website.
__________________
Have you tried the Elemental Voice Sonicrock?
Now available as a t-shirt!
How exactly would it not provide some jitter reduction. You'd be hard pressed to build a S/PDIF device that does not provide some jitter reduction from the standard chips available on the market.
You are right, I didn't count the simple old approach, and now I have to eat my words.
I've spent the best part of the weekend reevaluating the Aqvox DAC.
Integer ratio upsampling/bypass mode indeed sounds better in many cases.
Unfortunately I'm not sure anymore to which degree I'm fooling myself.I've spent many hours critically listening, I'm totally exhausted and need a break.
Could anyone explain why to me integer ratio upsampling seems to make a difference to plain Redbook?
I mean, the PCM1796 is oversampling anyway.
Hi Iron Dreamer ... what a competent review. Well done !
Cosmopragma also added another view on AQVOX usage. This is a unit I had been considering against a DAC-1, but now that the small Lavry has turned up - my attention changes.
I agree that a remote volume control would be most worthwhile on a DAC if possible, but also, in this computer age, USB sourcing could also be usefully selectable.
AQVOX make great claims for op-amp-less single ended class-A amplification and load effect free output driving, which I take to be a cascode-like arrangement, as often favoured for RF stage isolation.
Actually these are the very claims that put me off, because I cannot see single ended class-A being as dynamically accurate as a properly implemented integrated push-pull output driving stage: I am thinking of the throughput of dynamic but assymetrical music signals as compared to balanced and steady audio frequency sinewaves, and the possibility of small degrees of lower frequency zero level shifting developments, from mid range crescendos, that can accompany and thus muddy low frequency output.
Also, the load effect free arrangement would only protect the internal control loop from reactive load induced change, while the output phase relationship of harmonic content might be more free to alter through frequency with load impedance, this being relevent to higher frequencies where reproduced left and right harmonics must retain original relationships for correct image placement.
Iron Dreamer, your review makes me think of these possibilities, especially as you comment that the mid-frequencies (which automatically become the aural reference) reproduce well. Thus the AQVOX resolution might be more sensitive to signal dynamics and output loading than the other two are with more conventional amplification; thus further improvement might be possible via modification.
Lavry Email
) and tie in easily with "the DAC1 certainly still has a few niches" part is all. I didn't notice where you mentioned DVD & DVD-A compatibility. I guess it was understood to be standard on all three items.
Linear Mode
