Really impressed by the sound of the Q1 here, I honestly can't think of a better (simple) DAC / HP-Amp for my iPad Air. The sound in the (high-)mid and bass region is way more articulated / detailed in comparison to the iPad's headphone output, which has a tendency to sound soft and squashed...

Hi there,  just wanted to chime into this thread as I am totally amazed by the Aiaiai Tracks I recently bought and just felt like I need to share the experience. Sound and music always had a huge impact on my life (which might be the reason I am professionally involved in the recording...

Hum, it's really nice that so many contribute with opinions, or the opinions and tests of other people. But that just doesn't help at all. As some of you might know, I did tests which led to my opinion, I was not opinionated from the beginning.    To really contribute to this thread, post...

That is indeed very interesting. Is there any possibility to view that article, as I did measurements with different usb cables on multiple usb audio interfaces that did not show any noticeable difference between the cables.  

It's an I/O buffer. Thus on both sides. A buffer for the input and a buffer for the output. Of course not inside the device. I referred to buffers way earlier in this thread. For example, a buffer underrun would be the result of a too small buffer size in relation to cpu / bus clock deviation...

Quote: Of course it's buffered, but not inside the audio interface:   http://www.mhsecure.com/technotes/v5MixerOverview/CoreAudio.html  

Quote: Absolutely untrue.   Every USB audio interface is accessed via a buffer. It is not like S/PDiF.  

That's the plug that connects the headphones to the cable, not the cable to the headphones out. Good thing about it is that it's locking so you can't accidentally rip it out of the hp's. It's actually quite good in comparison to the feeble connectors on a HD25, for example.  

Quote: Uelover,    in each and every test I've shown on this thread and the parallel thread here http://www.head-fi.org/forum/thread/555612/cable-discussion-continued-split-from-usb-cable-thread/105#post_7514713 the equipment was mentioned.   I kindly forwarded you the test...

The problem is that people are not willing to accept that whatever happens between the audio interface and the computer is a controlled digital system with no "esoteric" possibilities.  

Quote: First off, please, we all know a discussion can get heated from time to time, no need to start being rude.    The interesting thing I want to mention (and I guess I have mentioned it a long way down the discussion thread) is that me and my brother could both hear a difference...

Quote: Hi Uelover, I am just trying to prove my point. This is the deconvolution of a sine sweep from 1 Hz to Nyquist frequency. Nyquist fq is defined by fs/2. Thus, a sweep from 1 Hz to 96 kHz, as the sample fq was 192 kHz. In this section, I am afraid blind tests are not allowed. I...

Quote: Binaural recording has been there for years ... congrats, you just re-discovered it!    

Quote: That is what some of us are trying to prove for weeks...      

Some last measurements, for the community to decide:   difference01   difference02   This will be my last measurement here. The cable crowd is too ignorant. I want to emphasize on the fact that I own several "audiophile" USB cables that I bought for my measurements, and I keep them...

Quote: erm, do you really know how an audible difference would look like as an impulse response?    

Quote: The difference is extremely minimal. Any of these "micro" differences is probably induced by the tolerance of the analog circuitry. Please mind the signal is DA-AD and passes through the analog domain. There is a lot of (pro) gear out there which won't give you such a clear...

Quote: Yep. They are. And this is the third USB audio device that I measured. I wonder what esoteric DAC designs may exist, because on all of the ones I tested, it doesn't make a difference. And yes, the Audioquest Cinnamon I used definitely shows less resistance than the stock USB, but...

Quote: I am quite surprised by the performance of the audio interface, please mind this is DA-AD (analog out to analog in). I may need to add that the deconvolution is normalized.    

No need for a double blind test.    Recently, I invested in a usb audio interface that is (among other things) built for audio measurements, and also tested this unit with 2 different usb cables. Signal flow for the measurements is Mac Pro -> USB -> DAC -> internal analog connection -> ADC...

By no means I want to be condescending.   Maybe I overlooked a line, but who started talking about a NULL result?     

Quote: Apparently you are not able to distinct between the analog world and a digital system, which is kinda "simple" in comparison. In the digital world, we have a fixed system with a certain number of samples and wordlenghts per second. In case of a digital CD, it's 44100 x 16 different...

Quote: Excuse me, but I don't seem to understand what you are talking about. I suppose the "nulling" refers to the tests I did by re-recording music and audio test sequences by using different USB cables (as variables) within the "signal" chain. The inverse summation (one signal reversed...

Just a bit of an add-on from my side:    I have been turning the spike around and did some conductivity / resistance measurements with the more expensive usb cables today. And I won't even discuss the fact that these cables are of a better conductivity (thus, less resistance) than their...

Quote: You could buy the AudioQuest because it's green and not too expensive (in comparison to a Locus Cynosure). Especially at this length, I am 99.99999% sure that it won't make a difference with any other USB cable that's the same length. As much as my time allows, I have been...