Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp
New Posts  All Forums:Forum Nav:

Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp - Page 21

post #301 of 9242
12/25/07 at 2:08pm
Thread Starter 
Quote:
Originally Posted by arteom View Post
I am new to op amp rolling, never done it before. I will listen to this for some time before I try to swap anything out. Hey got a question though, would you recommend I leave headphones plugged in during the burn in or no?
Good idea, waiting on the Opamp business. Both the pre-amp and the headphone amp inside the Zero have capacitors, so both will eventually burn-in. I would recommend plugging in your headphones and driving them for the first 100hrs of burn-in. This will burn-in the majority of the components and give you some serious sound!
Reply
post #302 of 9242
12/25/07 at 2:48pm
The heck, how did you get yours so quickly? My tracking # has been stuck at "Item left HK" since the 22nd....aii....
Reply
post #303 of 9242
12/25/07 at 3:06pm
Well it IS coming from china afterall.
Reply
post #304 of 9242
12/25/07 at 3:10pm
I dunno why I keep coming back and reading this thread.
It's just making me impatient for my unit to arrive.
Reply
post #305 of 9242
12/25/07 at 7:11pm
Quote:
Originally Posted by IceClass View Post
I dunno why I keep coming back and reading this thread.
It's just making me impatient for my unit to arrive.
Definitely. I think that's true for most of us!
Reply
post #306 of 9242
12/25/07 at 7:30pm
Thread Starter 
It's because ANY news is good news when you are waiting! Don't worry though, I would bet many of them are sitting in customs waiting to be accepted and processed. When customs accepts them, they show up in the USPS system under the same tracking number you were given. You can then have the USPS system send you email updates.
Reply
post #307 of 9242
12/26/07 at 9:51am
The opamps should be MDIP right? For exemple LM4562NA MDIP.

EDIT: And where can I found the Browndog adaptor?

EDIT2: Hmm LT1057 only come as SOIC and PDIP. I assume its the PDIP.
Which one of these is the correct one to use?:
LT1057ACN8 PDIP
LT1057ACN8#PBF PDIP
LT1057CN8 PDIP
LT1057CN8#PBF PDIP

EDIT3: And where do one buy Analog device DY2000 (dual, metal)?

(EDIT4: Found the answer, BP
Correct one?:
OPA627AP PDIP
OPA627APG4 PDIP
OPA627BP PDIP
OPA627BPG4 PDIP)
Reply
post #308 of 9242
12/26/07 at 10:16am
double post
Reply
post #309 of 9242
12/26/07 at 10:40am
Quote:
Originally Posted by Henmyr View Post
EDIT3: And where do one buy Analog device DY2000 (dual, metal)?
Eddie Wu @ diykits
Reply
post #310 of 9242
12/26/07 at 12:12pm
Possibly stupid question here, but, is this an upsampling DAC? Is it upping all inputs to 24/192 before analog output? I have a Darkvoice 336i coming (eventually) and wanting a new DAC to use. I am currently using the DAC in my Denon DVD 5000 for playback of my Escient Fireball and my Sony SACD for CD playback, since the Denon will not play CDRs. Thanks for any help!
Reply
post #311 of 9242
12/26/07 at 12:53pm
Sorry abit off-topic...

Does "OPA637BP" is a single-opamp (which need 2 to works as dual?) ?
Does BP & AP has differences? both suitable for headphone amp?
Reply
post #312 of 9242
12/26/07 at 1:05pm
Quote:
Originally Posted by Capunk View Post
Sorry abit off-topic...

Does "OPA637BP" is a single-opamp (which need 2 to works as dual?) ?
Does BP & AP has differences? both suitable for headphone amp?
the OPA637 is single, depends on the amp design it may need to be mounted on a 2 x single > dual browndog adaptor but not always

the BP has better specs, and usually less variance whether or not it is better for audio is arguable, see Notes on Audio Op-Amps for more info
Reply
post #313 of 9242
12/26/07 at 9:36pm
iv just ordered my new dac! can't wait to get it. Theres quite a few of us now waiting, this new zero dac should get a serious amount of testing from us all, the reviews will be very interesting to read!
Reply
post #314 of 9242
12/26/07 at 10:49pm
What is the retail price of the Zero?
Reply
post #315 of 9242
12/26/07 at 11:01pm
Quote:
Originally Posted by d-cee View Post
Eddie Wu @ diykits
Has anyone done a compare-'n-contrast with the metal and ceramic? Lawrence is sending me a ceramic one with the Zero but if he hasn't posted mine yet, I'm wondering whether I should chip in the difference and see if he'll do me a metal one instead?

I appreciate it's all personal taste and what-have-you, but I'd love to hear what people on here have to say all the same..
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp