[HeadphoneAddict]

Anyone see an up-sampling chip in there?

 

[powertoold]

Quote:

Originally Posted by HeadphoneAddict /img/forum/go_quote.gif Anyone see an up-sampling chip in there?

I'm sure the D2 doesn't up-sample. Just believe there's an up-sampling chip in there, and you'll get the same effect

 

[Andrew_WOT]

Quote:

Originally Posted by HeadphoneAddict /img/forum/go_quote.gif Anyone see an up-sampling chip in there?

Nope, there isn't any, but the rest of the hardware looks very impressive. Someone please compare it to Predator and Pico.

 

[HeadphoneAddict]

I know, I was just dreaming...

 

[dap_pad]

Does the pico or predictor have an upsampling chip???

 

[jamato8]

The Pico does. Upsampling is not a prerequisite to good sound. Frankly, I don't always like upsampling. My Elaborate Dac, has none and doesn't even have filtering and it blows everything I have ever heard away.

 

[sanity8me]

i'm surprised people are mainly requesting comparisons to the pico.. wouldn't the meier 2move be a better comparison since it's only ~$40 more and was very highly regarded in skylab's 36 amp roundup.. the pico w/DAC is a whopping ~$300 more

the d2-viper and the govibe petite are basically the only 2 amps that are holding me back from buying the 2move....errr....i'm hoping we get some good reviews/comparisons soon

 

[PlasticChicken]

Hi, I'm looking to buy my first headphone amp pretty soon and I wanted to ask if the D1 or the D2 is better for my DT770 and MDR-7509hd.

 

[souperman]

Quote:

Originally Posted by PlasticChicken /img/forum/go_quote.gif Hi, I'm looking to buy my first headphone amp pretty soon and I wanted to ask if the D1 or the D2 is better for my DT770 and MDR-7509hd.

IF you are only going to use USB, get the D2.

 

[PlasticChicken]

I was gonna use it for my laptop mostly. So the D2 is a better choice? And the dt770 has lots of bass and using an amp won't make it overwhelming right.

 

[souperman]

Quote:

Originally Posted by PlasticChicken /img/forum/go_quote.gif I was gonna use it for my laptop mostly. So the D2 is a better choice? And the dt770 has lots of bass and using an amp won't make it overwhelming right.

No, in my opinion the D2 will tighten up the bass a lot more and make it less sloppy compared to your laptop.

 

[sanity8me]

souperman,

i see that you used to own the original meier move and now the D2-viper.. can you compare the two?

i hate to ask a comparison question, but i don't understand why people reading the thread would not want to know this vital info...

 

[souperman]

Quote:

Originally Posted by sanity8me /img/forum/go_quote.gif souperman, i see that you used to own the original meier move and now the D2-viper.. can you compare the two? i hate to ask a comparison question, but i don't understand why people reading the thread would not want to know this vital info...

I did not like the Move very much.

 

[Asr]

In regards to the technical comparison between the D2-Viper and Pico, some of you should keep in mind that Justin has fully disclosed the key aspects of the Pico's implementation.

D2-Viper:
- DAC: Wolfson WM8740
- USB-I2S conversion: PCM2706
- op-amp: TI NE5532 (cheap & prolific)
- battery type: dual 4.7 mAh Li polymer
- multiple other aspects unknown
- assembled in China

Pico:
- DAC: Wolfson WM8740
- ASRC: Analog Devices AD1896 (de-clocked to 96 kHz)
- USB-I2S conversion: PCM2707 (er, unadvertised)

- op-amp: Analog Devices AD8397 (built-in buffer) (not as cheap as NE5532)
- battery type: 8.4V Li-Ion w/ smart charging, 20 hours
- voltage swing: 8V
- maximum output current: 250 mA
- maximum output power: 500 mW
- two-board assembly
- built & assembled in USA

 

[Sieg9198]

How long can the battery hold with a full charge??