Originally Posted by mikemalter /img/forum/go_quote.gif
From what I see, you are basically sourcing music from a windows computer through a sound card to a DAC to your headphone amp.
Either I'm using the V-DAC with USB, or the soundcards as DACs.
Also, you are making a comparison to Realtek in terms of other DAC's. Isn't Realtek a soundcard driver?
Realtek audio chips are common in motherboards and are basically soundcards integrated onto the motherboard. As such, they can do D/A conversion.
Also, I am not sure what you mean by, "less exceptional harmonic distortion measurements." Are you listening to the music, or measuring something else?
I'm just speculating if the difference I'm possibly hearing in music is related to the not-so-good harmonic distortion measurement results for the V-DAC from Stereophile. In other words, if the difference that I'm supposedly hearing on the V-DAC is the result of the device being of lower engineering quality than the Xonar STX soundcard. If there even is an audible difference. I might just be imagining it, and if there is, it's a tiny one.
My question to you is why do you care about the differences, imagined or real, between equipment? It is not clear to me what you are trying to accomplish.
I'm basically trying to justify to myself spending money on better DACs and amps. I'd hate to spend 1000$ on something that is in effect similar or the exact same as a 200$ piece of hardware. I want more expensive sources, amps and cables to provide better sound, but I have yet to hear this happen. All that seems to make a difference is headphone/speaker choice. And in the case of the latter, room acoustics of course.
A Musical Fidelity V-DAC with a pair of Sennheiser HD650's are a really good combination. You should have a really nice setup.
Thank you. I'd assume so as well. I don't really have reason to complain, I'm quite happy with how it sounds. But a 180€ soundcard with a simple IC-stage headphone output is basically matching the V-DAC and Canamp, a combo costing ~700€ here. The differences are marginal if they even exist, and it's impossible for me to claim one or the other as the better one. For reference, the differences between actual headphones are clear as day. Source and amp choice seem to me largely irrelevant to audio quality after a very entry-level point, and it is this belief that I'm hoping to find proof against, but haven't yet.
If you wanted to get the most out of it, I would focus on your media server on your PC and what works best with your operating system and sound card.
Thanks for the suggestion, but I already have all that sorted out. I've also tried playing music from a Harman Kardon cd-player costing alone more than my whole headphone rig, but to me, it's indistinguishable from my PC.
What is the resolution of your music? Some media servers will allow you to increase sampling frequency and bit length to present something that your DAC can handle. What is the highest frequency and bit length can your DAC handle, and are you sending that?
All my music is 44khz 16-bit, either in high bit-rate MP3 or uncompressed FLAC. I can't tell a difference between 16-bit and 24-bit or different sample rates above 44khz when playing these files.
I would also look into something like the Monarchy DIP that will reclock your signal which will really clean it up. I would think you are using coax to come out of your sound card and something like the DIP can help.
I don't really believe in jitter causing audible differences, as it's never been proven. There's actually more proof showing it false than true. But thanks for the suggestion anyway. I'm sure I'll try a reclocking USB DAC at some point, though I don't expect it to make an audible difference.