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γ1 (gamma 1) DAC thread - Page 5

post #61 of 159
2/27/09 at 3:36pm
Hi. This is my very first post. I just received gamma 1 DAC from MisterX. He is a very nice guy and efficient. From my first inquiry about full Gamma 1 DAC to the time I got it is only 8 days.

Anyway, a quick question. Does Gamma 1 need burn-in? If yes, how long? Do I have to connect an amp to Gamma 1 while burnning in (I will use USB to connect Gamma 1 to my iMac)? Similar question. Do I have to plug in a headphone to burn in an amp? Thanks in advance.
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post #62 of 159
2/27/09 at 3:41pm
Seriously, don't worry about it. Plug it in and just enjoy it, if it improves over time all the better but it sounds great from the start.

Play and enjoy.
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post #63 of 159
2/27/09 at 4:26pm
I'm with smeggy: plug it in and enjoy it! I found that mine sounded better after a week or so of normal use -- I hope you have the same experience.
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post #64 of 159
2/27/09 at 4:32pm
Thanks for the response, smeggy and royewest. I am not waiting for burn-in to enjoy it. I have been enjoying for a couple of hours. Let's assume that burn-in has some effect and I would like to plug in Gamma 1 to my computer while I'm not listening to music. Do I need to connect Gamma 1 to an amp and a headphone in order to achieve "burn-in effect"? Thanks.
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post #65 of 159
2/27/09 at 4:34pm
Just listen and dont think about burn in. If it gets better, then it gets better. If not, its still an awesome dac!
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post #66 of 159
2/27/09 at 4:41pm
I have no experience with burn-in. I just observed that my gamma-1 sounded a lot better to me, after about a week of use. And I was very happy with its sound from the start.
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post #67 of 159
2/27/09 at 4:46pm
Thread Starter 
Can't say I noticed any burn-in on my unit. It sounded pretty good out of the box. I'll just beat the dead horse and say just listen and enjoy your DAC.
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post #68 of 159
3/1/09 at 7:55am
This is sounding very intriguing. It's a shame there aren't more comparisons to the other FOTM, DACMagic, Beresford, Valab, Music Fidelity, etc. I realise [sic.] these aren't portable solutions.

One technical question. The AMB website states that USB is limited to 16-bit 48kHz. I assume that it doesn't resample 44.1kHz to 48kHz. Can anyone confirm?

Although I only have CD quality music on the computer, I'd be happier to future-proof and have something without the 48kHz limit. However, I assume that an increase in spec. quality would easily be outweighed by a poor DAC implementation, so I am really worrying about nothing at this level? I'm aware that I could use the other inputs but that means getting into the whole additional converter thing.
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post #69 of 159
3/1/09 at 8:03am
anoobis, γ1 does not resample. What sampling rate comes from your digital source's is what it will use -- up to 48KHz through USB or 96KHz through the coax and optical inputs. The 16/48 USB limit is due to the Burr-Brown PCM2707 USB audio interface chip.
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post #70 of 159
3/1/09 at 8:36am
Quote:
Originally Posted by amb View Post
anoobis, γ1 does not resample. What sampling rate comes from your digital source's is what it will use -- up to 48KHz through USB or 96KHz through the coax and optical inputs. The 16/48 USB limit is due to the Burr-Brown PCM2707 USB audio interface chip.
Thanks for the confirmation.

I quick search also shows that only much more expensive USB implementations ( >> $500) do better than 16bit/48kHz, so it's a non-issue for me at present.
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post #71 of 159
3/1/09 at 9:13am
the pico dac will do it.....
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post #72 of 159
3/1/09 at 9:54am
Quote:
Originally Posted by aloksatoor View Post
the pico dac will do it.....
No, Pico uses PCM2707 as USB receiver as well, but it upsamples to 24/96

HeadAmp Pico Portable Amp (w/ optional upsampling 24/96 USB DAC) Pre-Order Thread - Page 21 - Head-Fi: Covering Headphones, Earphones and Portable Audio
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post #73 of 159
3/1/09 at 2:35pm
aah i dint know that ... my bad
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post #74 of 159
3/1/09 at 9:10pm
Quote:
Originally Posted by anoobis View Post
This is sounding very intriguing. It's a shame there aren't more comparisons to the other FOTM, DACMagic, Beresford, Valab, Music Fidelity, etc. I realise [sic.] these aren't portable solutions.
FWIW, another Head-Fi'er listened to my y1, and compared it to his mildly modded Zero DAC over about 2 hours.

Needless to say, he is coming back to buy my y1
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post #75 of 159
3/10/09 at 10:33am
Beefy, what would you say are the differences of the y1 compared to your Buffalo? I used to own one, so I could use it as reference.
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