Audiophilleo 1 and 2 USB to S/PDIF transport
Jan 4, 2012 at 10:23 AM Post #271 of 1,214
"High value" can still be achieved if one goes the semi-DIY route: The "USB Transport" conceptual equivalence of the Audio-gd CD7: http://www.head-fi.org/t/580996/xmos-xs1-l1-usb-audio-2-0-reference-design-async-usb-audio-transport-for-149#post_8026912
 
 
Jan 11, 2012 at 5:22 PM Post #272 of 1,214
Just received the Vaunix Lab Brick Hub today. That thing is built like a tank, looks nothing like ordinary USB hubs.
Will try to make time to test it a bit over the weekend, together with all the rest I need to test.
Very friendly people over at Vaunix I must say, and delivered in Europe three days after payment.
I asked Scott of Vaunix to take a look at this thread and maybe enlighten us a bit about the advantages of the Lab Brick Hub. He was interested to know where I heard about his products.
 
 
Jan 12, 2012 at 1:11 PM Post #273 of 1,214


Quote:
Just received the Vaunix Lab Brick Hub today. That thing is built like a tank, looks nothing like ordinary USB hubs.
Will try to make time to test it a bit over the weekend, together with all the rest I need to test.
Very friendly people over at Vaunix I must say, and delivered in Europe three days after payment.
I asked Scott of Vaunix to take a look at this thread and maybe enlighten us a bit about the advantages of the Lab Brick Hub. He was interested to know where I heard about his products.
 



How much did it come to in euros, after shipping/ taxes?  
 
Jan 12, 2012 at 2:36 PM Post #275 of 1,214


Quote:
Just received the Vaunix Lab Brick Hub today. That thing is built like a tank, looks nothing like ordinary USB hubs.
Will try to make time to test it a bit over the weekend, together with all the rest I need to test.
Very friendly people over at Vaunix I must say, and delivered in Europe three days after payment.
I asked Scott of Vaunix to take a look at this thread and maybe enlighten us a bit about the advantages of the Lab Brick Hub. He was interested to know where I heard about his products.
 


Looks interesting let us know how it works out.Looks like a good option over the Aqvox.
 
 
Jan 12, 2012 at 5:11 PM Post #276 of 1,214
I believe Phillip is readying his new battery power supply, which should be available near the end of the month (Open! Open! Open!) There may also be a firmware update to facilitate the new battery power supply. The charging logic will automatically detect steaming data, and switch to battery operation. In the absence of data (after some set period of time), the charging circuit is enabled.* 
 
*NOTE: I'm reading between the lines from some e-mail correspondence I've had with Phillip. 
 
A well designed power supply, whether AC/DC or DC, should provide clean, linear power that hopefully provides improved sound over USB . In some ways' the Aqvox seems like a good solution and it appears to measure very well. The Vaunix Lab Brick Hub may provide similar benefits, but it's noise is not specified. 
 
Jan 12, 2012 at 6:03 PM Post #277 of 1,214
This I got from Scott Blanchard of Vaunix.
 
 
Quote:
We did take great care to provide perfectly matched data lines, isolated digital ground and a well regulated and clean voltage.  We believe it's the best hub for the audio market.

 
For me a good hub was necessary since I will be feeding three DAC's via USB.
I have the Luxman, the W4S MINT is ordered and should be here end of the month/beginning February.
The W4S DAC2 will be added by the end of February when my Zana is shipping.
 
I can't connect all of them directly to my iMac.
I made sure the Vaunix hub is on an internal hub with nothing else on it.
The second internal hub is connected to two external hubs for mice/scanner/etc...
 
Jan 12, 2012 at 7:05 PM Post #278 of 1,214
The Vaunix looks very well made!
 
Quote:
This I got from Scott Blanchard of Vaunix.
 
 
 
For me a good hub was necessary since I will be feeding three DAC's via USB.
I have the Luxman, the W4S MINT is ordered and should be here end of the month/beginning February.
The W4S DAC2 will be added by the end of February when my Zana is shipping.
 
I can't connect all of them directly to my iMac.
I made sure the Vaunix hub is on an internal hub with nothing else on it.
The second internal hub is connected to two external hubs for mice/scanner/etc...



 
 
Jan 13, 2012 at 10:51 PM Post #279 of 1,214


Quote:
I find your description interesting. I posted elsewhere that the AP2 into a near 6-figure system with a Wyred 4 Sound DAC-2 was so transformative, the soundstage was expansive, illumined and highly refined. Out of the box the AP2 was a revelation, but (and that's a big but), letting it sizzle for 200+ hours opened up the soundstage and relaxed the overall presentation. Digitization? Hmm... It was anything but! With the AP2 It's so much easier to listen to long sets, literally 4 - 6 hour long sets! 
 
Phillip has an interesting article (here: http://www.computeraudiophile.com/files/Audiophilleo%20vs%20Evo-%20Part%20%202%20and%203.pdf) from a 'phile at Computer Audiophile, that believes the AP2 is closer to his 24/96 master recordings than the comparative unit.  
 
I haven't listened to any of Steve's stuff. However, I'd love to see his specs more clearly defined. I believe, as far as jitter is concerned, that Phillip provides more thorough, comprehensive specs than anyone at this time. However, in that Steve hasn't provided any specs on his devices, doesn't mean his are less effective; it just means that there isn't anything to provide a direct comparison with other units.
 
Phillip plans to provide a battery power supply this month that I hope to give a try. So, if there are any differences due to power supply anomalies, maybe this will be an equalizer?
 
BTW, my buddy and I may already be realizing improvements since we have everything plugged into balanced power supply's from BPT and Equi=Tech, including the computing infrastructure. 
 


 


I think I should have left out some words that I have used because the AP2 wasn't a more "digital" type of sound.  Rather, it was just exaggerating the mids-highs, but the sound was simply like I had inserted an equalizer and boosted the midrange section heavily, along with the treble.  I don't think anything, as clean/clear as my system sounds, could make it sound "digital" due to the speakers #1 along with-amp-preamp (obviously room/recording)=99% of the equation for me.  Even with 80's junk recordings, the sound is very clean/balanced that there's not that sensation of that "compressed" and "digital" sound I heard with any other speakers in the past, though I also never had the other components that I feel really help things out a lot.  
 
I could certainly listen for hours with the AP2, but it just would not sound ok for me.  I have been theorizing if "any" USB converter can even sound good in my system.  I know for fact that the Off Ramp was night/day superior that it literally made the AP2 sound very poor.  It was not something so subtle as to say this was better, that was better...the Off Ramp just flat out was like a real and true digital based product.  If I was convinced enough with the USB converter path, I would be in line for the OR5 without any doubt because what's $1200 if you know it's as good as any converter is going to sound now, and maybe even some good deal of time down the road.  But until I hear an OR5 in my system without having to pay some kind of re-stocking fee, I'd do this knowing it's a free trial.  At this point, though, and in my system, as I say, these converters just do not work for whatever reason it is.  To my ears, the sound is very much so subtracting than it is adding.  A quite silly comparison is going to Youtube (silly because we know that garbage quality of sound).  But even on Youtube, final mixes of songs being produced are "heavily" emphasizing the midrange/treble, much the same as what I have heard with the USB converters.  There is a very beautiful tune, and both my friend and I agreed that the final mix sounds absolutely terrible by comparison to the original or at least previous mix of the song.
 
Recently, I spoke with a second person that sold his AP2.  I have only seen and spoke with both sellers of the AP2 to get an idea of their thoughts, without mentioning how it compares to this/that/etc...just how is is general and obviously why/what they replaced it with.  Considering how many of the AP2's that have sold, probably the most of any device aside from maybe a Hiface or other cheap converter.  First person said it was an incredible device, worked wonderfully in his secondary system, but that he sold it because it was a system made for family purposes (i.e. visitors), and it was a system that was simply too difficult for any normal person to turn on and make work.  This person uses some crazy mega buck computer setup for his main system at his office if I recall.  The recent person said he felt it was a slight upgrade from the Hiface, but was only an "ok" device.  He said that an Off Ramp 3 he once had is the only converter he has ever used that had a sound he would consider to be "quality"...he termed it as "elite", but point in case is a very outdated OR3 was able to transform his system, but the AP2 was only "ok", and the Hiface slightly inferior to the AP2.  This person now uses the Tranquility SE, but is going to be selling it soon.  He's still trying to find his way through a higher end USB based dac/converter in one solution or even something further up the scale in price.
 
What I got from these two sellers is that seller 1, like the majority, loved the AP2, and speaks highly like probably 99% others out there do.  The second one has been through loads of equipment and continues to go through loads of it, but he had a very clear mind about what devices have been those that truly stand out and those that may be good, but are only "ok" vs. the truly good ones.
 
In the end, I have seen only two of these for sale.  I have never seen an AP1 for sale.  This should be enough evidence that the AP2 works wonders for again, the 99% out there:)!
 
I did not realize it, but Dave is correct in that the OR5 is still in production stages, and has not been officially released. There is a decent list waiting for the production model, but the confusing thing to me is how the OR4 is still up and with the price the OR5 will be, so I am, nor did I ask Steve what exactly I or anyone would be buying if they were to pay $1200, if anything.  It could be he is just not producing any Off Ramps at this time until the OR5 is set to go.  As Dave said it, and as I'll always say it, best to simply send an email if you or anyone is interested in it.
 
AP2 gets battery supply for $450 additional, at least that was the price I got from Philip.  But add this up, and you now have basically the price of an OR5.  Still, I'd listen to both since I don't know what exactly the sound level of the device will be with this new mod.
 
Regarding the article that Steve wrote, it is entirely biased.  It's like reading about why an amplifier designed a certain way sounds the best.  Reminds me of reading about the Linkwitz Orions and his LOADS of information...obviously the guy is a wealth of information and does know a thing or two about transducers, but his speakers are "ok" but at the same time rather poor in three different listening sessions I have heard them in.  So end of day, designers can write an entire library of books, but the best they can do is "promote" their products by justifying them via blah blah blah, and more blah...
 
Jan 14, 2012 at 2:42 AM Post #280 of 1,214
I don't doubt that you heard a significant difference, that the OR had better synergy with the combination of components in the kit that you heard. What you describe makes sense when considering the importance of system synergy. Sometimes, depending on the aggregate of certain characteristics in a system, the sum becomes too much of one thing or another. Still, it makes one pause and wonder what the difference might be. Elsewhere on Head-fi are some remarkable real world measurements of the AP. If one considers the virtual elimination of jitter managed by the AP1/2 transport (well within its specification), then what is the difference? Perhaps not all S/PDIF implementations at the DAC/CDP interface are equal? Power? 
 
I'm preparing to send my AP2 to Phillip for modification for use with his new PurePower Battery supply. It should be interesting to hear what difference the battery power supply provides, and whether or not it is the great equalizer. 
 
(I felt that Steve's article was a fairly objective synopsis of his understanding of jitter, its sources, types, distribution and spectrum.) 
 
 
Jan 14, 2012 at 5:30 AM Post #281 of 1,214

 
Quote:
I don't doubt that you heard a significant difference, that the OR had better synergy with the combination of components in the kit that you heard. What you describe makes sense when considering the importance of system synergy. Sometimes, depending on the aggregate of certain characteristics in a system, the sum becomes too much of one thing or another. Still, it makes one pause and wonder what the difference might be. Elsewhere on Head-fi are some remarkable real world measurements of the AP. If one considers the virtual elimination of jitter managed by the AP1/2 transport (well within its specification), then what is the difference? Perhaps not all S/PDIF implementations at the DAC/CDP interface are equal? Power? 
 
I'm preparing to send my AP2 to Phillip for modification for use with his new PurePower Battery supply. It should be interesting to hear what difference the battery power supply provides, and whether or not it is the great equalizer. 
 
(I felt that Steve's article was a fairly objective synopsis of his understanding of jitter, its sources, types, distribution and spectrum.) 
 



 
When is the battery unit going to be commercially available?
 
Jan 14, 2012 at 11:02 AM Post #282 of 1,214


Quote:
 
AP2 gets battery supply for $450 additional, at least that was the price I got from Philip.  But add this up, and you now have basically the price of an OR5.  Still, I'd listen to both since I don't know what exactly the sound level of the device will be with this new mod.
 


Just curious, did Philip explain the price hike for the new battery supply?  Back in Sept. when I was talking to him about this he quoted under $200 for the upgrade, but then also said he was having trouble getting it manufactured so it was on hold.  
 
Jan 14, 2012 at 2:32 PM Post #283 of 1,214
Here's what I know from e-mail correspondence with Phillip re the battery power supply. Again, I'm reading between the lines so take this with a glass of wine, a few grains of salt, or whatever truth serum you use for these types of posts 
wink_face.gif

 
  1. I believe he is calling it PurePower 
  2. The AP1/2 will require modifications that effectively disable the internal galvanic isolated power supply; the modification will include another input for the battery power supply 
  3. The battery supply will become the primary power source; you will no longer be able to power the unit via USB, although you could probably use a USB barrel cable adaptor; however, that probably means that you'd be getting potentially noisy power straight from the USB supply (because the galvanic isolation was disabled? Not sure about this...)
  4. Implementing the modifications means that the AP1/2 and the PurePower batter supply are intended to be used together
  5. A new firmware update will also be required in order to take advantage of the PurePower battery supply
  6. In conjunction with the firmware update, the system will detect data and automatically switch to battery mode; in the absence of data--after n-idle minutes--the system will probably revert to charging mode
  7. I'm not sure how many hours the PurePower supply will be good for, but it better be at least 4 - 6 hours! Some of my listening sessions go into the wee morning hours!
  8. The pricing has not been finalized, but I suspect that the device is more sophisticated than the simple Aqvox AC option; I believe it also includes some kind of a display reflecting the state of the AP transport and battery (I'm guessing that Phillip might be using a similar display as his AP1; some of that might explain the price differential (we'll see if it's worth it!)
  9. An upgrade promotion will be offered to existing AP users
  10. Phillip is targeting the initial release date near the end of January 
 
Remember, this is my personal understanding about what Phillip is doing. I'm sure there'll be additional information when it is released. 
 
Jan 14, 2012 at 10:57 PM Post #284 of 1,214
1) I definitely understand when a component relies on synergy or not.  In the listening sessions vs. the OR and Emprical DAC, it was not about synergy.  I'm sure Steve "tailors" things based off his hours of laboring with components, then inserting them into his system, then sending them off to reviewers to confirm and re-confirm, etc. etc.  So indeed, he has a setup based on his own liking, but at the same time, what I heard had nothing to do with tailoring the sound any specified way, other than to have as good of USB converting possible.
 
2) Let me ask you this about that article.  Lets say all that was written came to a result that the very best means of achieving best computer audio playback was a sound card?  Do you think he would have been making USB based devices?  I started to get into the first bits of the article, then did my best to skim through as much of the rest of it, it that boring...Steve is a great guy and I will not remove my impressions of his products with respect to USB conversion as I truly feel he has nailed this down and is the one for "any" manufacturer on this planet to beat out.
 
3) Philip told me $450 extra for the battery version, but that figure of $200 made more sense, and well, as you put it, we have to really take it all with any expression we will at this point because until it is in production or you have yours back with the mod in it, we will not know pricing, nor will we know the difference.
 
What I do not quite understand, however, is people have already used batteries with their AP2's, did say the sound increase was there, but was more or less subtle.  These same people feel the hub based setup is what took the device to sound that is more than just subtle.  I'll definitely be following along as I'd love to see what exactly Philip does to the unit, but only important to me, the sound of it.  Philip did post that article about Steve, and he also said he feels this battery version will compete or best the Off Ramp (pretty bold statement, but I guess a designer has to either have balls or arrogance):))
 
I'm most interested in how far out of the USB interface he can make this design...as in...if we try various attenuation values, will it result in a different sound or will the sound never change.  This is important from a financial standpoint because if there is no sound difference between various 6db-20db, etc. attenuation devices, it should also mean that USB solution is in fact completely off-grid, and should not require ANY fancy $$$$$ USB cables.  If a cheap $5-$15 diy USB cable can be made and sounds no different than even a $1 or $5K one, then the device was done correctly and we can consider the value of it to be VERY GOOD...it's like a free upgrade considering people say $200-$400 USB cables are basically the fine line cost wise of achieving excellent sonic quality.  I can only imagine those that have used the Vaunix and are using $200+ cables, two of them at minimum required, so $1200 total for AP2+Vaunix+two $200 USB Cables.
 
Anyhoo, in spite my dis-like of the AP2 in my system, I'm still very interested in what Philip has up his sleeve and will be looking forward to hearing impressions once these devices get rolling to existing and new customers:)!
 
Cheers
 
Jan 14, 2012 at 11:03 PM Post #285 of 1,214


Quote:
Just curious, did Philip explain the price hike for the new battery supply?  Back in Sept. when I was talking to him about this he quoted under $200 for the upgrade, but then also said he was having trouble getting it manufactured so it was on hold.  


This is all he had to say to me and I won't edit what I had to say, but Philip claims it will beat what Steve has to offer.  This sets the table quite nicely I should say:):):).
 
Philip's words:
 
"" I am coming up with a battery powered version which accoding to some early tester feedback will most likely outperform devices like the empirical. It will be about $450 more than the ap2.

If this interests you I can let you.know when this is available (sometime January)."
 

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