Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp
Aug 19, 2008 at 10:52 PM Post #5,326 of 9,388
K2-w_vaccuum_tube_op-amp.jpg

could this work??
 
Aug 19, 2008 at 11:01 PM Post #5,327 of 9,388
Quote:

Originally Posted by AudioPhewl /img/forum/go_quote.gif
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You have my permission to get drunk.
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~Ph.



If I do then I can forget about getting anywhere near the "easy" button later on tonight
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Peete.
 
Aug 19, 2008 at 11:03 PM Post #5,328 of 9,388
Quote:

Originally Posted by viscosity /img/forum/go_quote.gif
K2-w_vaccuum_tube_op-amp.jpg

could this work??



On what ? What the hell is that anyway ?
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Peete
 
Aug 20, 2008 at 12:00 AM Post #5,330 of 9,388
Hey there fellow Zeroheads ,

I emailed Kingwa that I was impressed with the OPA-SUN and he emailed this back .

Hi!Gavin:
Thanks you reply,if have any problems or advice , please tell me.
If the feedback of OPA is good, we will produce OPA-Moon, it sound like tube.
Kingwa

Looks like we might have a new one to play with .

Cheers,
Gavin ...
 
Aug 20, 2008 at 12:07 AM Post #5,331 of 9,388
Quote:

Originally Posted by viscosity /img/forum/go_quote.gif
apparently a tube opamp..

diyAudio Forums Archive - Philbrick opamp bases



Interesting....when you posted the pic I saw the octal base but didn't clue in on it.

Thanks for the link...

Peete.
 
Aug 20, 2008 at 12:14 AM Post #5,332 of 9,388
That's good news Gav....I wonder how they will pull that one off...not an easy task I would imagine then again I know jack crap about making HDAMs...so....
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Peete.
 
Aug 20, 2008 at 12:55 AM Post #5,333 of 9,388
What's Kingwa's email address (PM me with it please)...I think I have the correct one (address) but I'd like to make sure...I have some questions about V+ and V- pin assignments for Sun and Earth modules. I can't imagine they would change from pins 4 and 8 but I have to make sure. If anyone else knows for sure then by all means post the info or a link to pin specs for both HDAMs here please.

Thanks guys
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Peete.
 
Aug 20, 2008 at 1:02 AM Post #5,335 of 9,388
Quote:

Originally Posted by alxwang /img/forum/go_quote.gif
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Thanks Alex !!!!

Peete.
 
Aug 20, 2008 at 1:05 AM Post #5,336 of 9,388
Whats the optimal voltage to run these things at or does that matter (as long as it's within spec) ?

Thoughts on that Alex ?

Thanks,

Peete.
 
Aug 20, 2008 at 1:08 AM Post #5,337 of 9,388
Exactly same as the OPA2604 - that's the reply from Mr. He - I send him a email asking about luther detail. Will post it when I get it. He is on holiday now so....
Quote:

Originally Posted by Pricklely Peete /img/forum/go_quote.gif
Whats the optimal voltage to run these things at or does that matter (as long as it's within spec) ?

Thoughts on that Alex ?

Thanks,

Peete.



 
Aug 20, 2008 at 1:17 AM Post #5,338 of 9,388
Cool....please post that info when you get it. It'll be interesting to read/hear what he has to say on the subject.

Peete.
 
Aug 20, 2008 at 1:28 AM Post #5,339 of 9,388
Actually in his email he suggest me replace all of D669/B649 and K170 after I show him the inside photo of zero.
About D669/B649: He think because the D669/B649 has be stopped production for more than 10 years already so most likely the zero is using fake one which cost 1 RMB and the real one is difficult to find and cost 15 times more. That's why I am think about upgrade D669/B649 at my next step.
 
Aug 20, 2008 at 1:39 AM Post #5,340 of 9,388
i might wait out for the opa-moon... i would really like a more 'tube' sounding amp (albeit artificial.. but who said authentic vintage tubes were in style anywa
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