Several videos on how to use the Audiophilleo have been posted in the company's YouTube channel... https://www.youtube.com/user/Audiophilleo The topics covered include using the Audiophilleo with a remote control; basic installation; integration with PurePower; rebooting the PurePower; and...

The soundstaging of the Audiophilleo is pretty much state of the art, as evaluated on my own $200K+ reference system and those of other audio enthusiasts.   If the fellow thinks the hiFace (either the original or the Evo) sounds better, especially with respect to soundstaging, something...

You might want to check out my detailed review of the Weiss DAC 202 at http://positive-feedback.com/Issue59/weiss.htm for details on its performance. The fit-and-finish is certainly exemplary.

Not sure what your overall system looks like, but I run very long USB cables to the DAC, which is just 3 feet from the amps. The EMI is probably polluting way more than the USB power. How about the DAC, to say nothing of sending all kinds of hash down the line level analogue cables to the amps...

Most likely EMI strikes again, in both cases. Nobody bothered to engineer laptops and workstations for low emission, at least not to levels that would be safe to use with audio gear. They're full of switching power supplies, all kinds of digital hash is going out on the grounds, etc. And all...

A workstation? Uh, oh. One of the usual suspects...   I've got a really tiny, low-noise laptop (a terrific Acer Aspire 1410) that's a great music server, and even so, I always run it off its internal battery when doing serious listening. Could be that the USB power or more likely, the...

@Bobeau... Edginess is usually what goes away with the Audiophilleo introduced into a system, so it could well be that whatever source you had before was masking it (as a theory...). And that the WireWorld UV cable and external power supply made that much of an improvement is interesting also...

The phase noise measurements don't seem to change when using a high-quality linear power supply, or batteries. Obviously if it sounds better, and the measurement doesn't change, we need an additional measurement. :)   The improvements brought about by an external supply do seem to be quite...

There are a number of interesting observations and questions raised by the recent posts... let me try to help out.   Basically the Audiophilleo has a special feature that  allows one to output the clock through the same connector that goes to the DAC (through which the  Audiophilleo is...

To the extent that the conversion clock is extracted from the incoming S/PDIF (which it is in all but the most expensive $20K up DACs) the low phase noise is very helpful. Everybody else follows along from the extracted clock regardless of the internal pathways for the data.

We'll be getting in several additional clocks this week and next. The products range from the $500 Black Lion Audio Micro Clock Mk 2 to high-end products such as those from Antelope and Esoteric.   The output stage of the Audiophilleo1 and 2 doesn't have any transformer; it drives the S/PDIF...

@pompom...   The most generalized and rigorous way  to express phase jitter in clocks is in terms of x ps RMS integrated from m Hz to n Hz... for example, 15 ps from 10 Hz to 100 kHz. Specifying the bandwidth is critically important to make a valid comparison. These numbers are derived from...

If you use something like the Audiophilleo1 or 2, the S/PDIF output will be an order of magntitude, perhaps two orders of magnitude, less jittery than a typical TOSLINK output. See measurements published by John Atkinson in the December Stereophile, p. 113 ff on the Halide Bridge. Laptop TOSLINK...

Vista and 7 both put out dithered audio if one uses Windows Media Player.   Source: the person who developed the audio stack, and the peson who hired the person who developed the audio stack. JRMC (J River Media Center) in WASAPI and WASAPI Event Style modes are bit-perfect (make sure no...

@juman231... the output on the DAC headphone amps is designed for low-impedance 32-40 Ohm loads. The line out level is within a certain specified range, say 2.0 V RMS, and varies according to any attenuation you may have dialed in using a preamp. Many DACs now have preamp functions built in. You...

http://www.6moons.com/audioreviews/lavry/dac.html for the Lavry http://www.6moons.com/audioreviews/wilson/1.html  for the Sashas http://www.6moons.com/audioreviews/audiophilleo/1.html  for the Audiophilleo1 and 2   A USB DAC with a headphone amp (Bel Canto, Lavry, Furutech GT40) will...

There are several interesting questions here. Firstly, the easiest one. Just use the inexpensive J. River Media Center (JRMC) software to bypass Windows Media Player (WMP). As you may know, WMP on Vista and Windows 7 always dithers the output, so you cannot get bit-perfect data to your DAC in...

USB input integratated amps are starting to show up http://www.stereophile.com/integratedamps/nuforce_icon_usb-input_integrated_amplifier/ Just search on usb integrated amps. This kind of product will definitely drive passive speakers. Now, another approach is to get a good USB DAC with...

Well, let me take a stab at it.   Basically, if your transducers (headphone, speakers) are not very good, different grades of DACs might not make much of a difference. Low quality source material (MP3, for example) is often so degraded that, once again, a cheap DAC versus a quality DAC might...

Definitely mitigate. You have to go to considerable lengths to reduce all the noise that's being generated by a computer. But fundamentally, the Audiophilleo and other products that do galvanic isolation, regenerative local power supplies inside the device and all that are going a long ways to...

Agreed. A good USB interface such as the M2Tech Evo or Audiophilleo1/2 coupled to a good outboard DAC will be way, way better than almost any receiver. And the Bel Canto 1.5 USB DAC sounds very well to my ears. It's driving a set of powered studio monitors, and also has a headphone amp, which I...

Please IM or e-mail me... :)

Agreed on the Lavry, it's a good product sonically (I wasn't able to evaluate the headphone port, not having good headphones available to me at the time).   Keep in mind that he went ahead with a USB interface in the relatively early days of such things, and newer interfaces in some cases do...

@endless402... thanks for the updated links. The interface at $683 and conditioner at $822 are interesting. My long-standing observation is that the switching power supplies, motherboards, etc., in computers are a major problem with digital audio.   @shamu44... are you still using the Lavry...