cardas not cheap in malaysia i need to check the price first

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Added on August 25, 2008, 2:57 pmnope is different optical is using Toslink , digital interconnect is coaxial

This post has been edited by abel: Aug 25 2008, 02:57 PM

abel,
can pm me once you get the price and also price for transparent powerlink plus power cord.

To the techy about DIY, pls refer here.

http://www.diyaudio.com/forums/showthread.php?postid=1576599

Earth better or sun?
Morning use Sun,
Use Earth at night.

Is tht rite?

75Ohm is for Digital signal use, as in Digital Coax. Can also be used for Video Signal, hence component cables are also 75Ohm.

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Added on August 26, 2008, 12:41 pmGuys, I just noticed that my Zero DAC has a humming sound when I switch it on. I suspect it's the transformer coz I can also feel a very slight vibration from the unit. Anybody else have this issue?

GodLuv, any way to fix this humming issue?

This post has been edited by RAV4: Aug 26 2008, 12:41 PM

Guys,

just to share, more and more guys are feeling great the OPA.

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Originally Posted by Henmyr
The people saying the Opa-Earth is good... are only modest. I find the OPA-Earth VERY good. A VERY worthwhile upgrade.

I've always felt that the Zero was a bit veiled in the detail and texture departement. The OPA-Earth offered a big improvement to detail over the whole spectrum, from bass to hights.

The increased detail, texture and air has improved low-level listening a lot.

I have found the bass just a bit boomy before, but with increased tightness and control the bass is now very good.

The air and separation have increased a lot too.

I agree with the comments about it's apparent lack of colouration. It sounds very natural and neutral. It's not neutral/bright and not neutral/dark, but instead very close to perfectly neutral.

I will eventually try the OPA-Sun also (which I have here waiting), but for the price I would have been satisfied if I only got the OPA-Earth also as it is such a big upgrade.

I just might finally be satisfied with the Zero (never say never due to upgraditus)

EDIT: I forgot to mention the increase in dynamics, both micro and macro-dynamics.

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Added on August 26, 2008, 10:47 pmOpen the DAC and check internally if anything loose wiring or shorted parts.

Try to use the DAC with different power source.

u may have DC in the AC supply to the zero DAC .


also try to use test pen to check all the component casing, see if the light on test pen is on.

This post has been edited by ccschua: Aug 26 2008, 10:47 PM

^ i get the slight vibration too i got the humming once and i switched it off, after that it never happen again, i suspect the tranny, but i havent test it from another power source.

odd...

ive NEVER gotten the vibrations...

someone has suggested some ways to fix the tranny problem. hope u are reading it too at the head-fi

Remove the top case - 6 screws.
Remove the bolt running through the centre of the transformer.
Lift transformer out of chassis.
Fit small piece of insulating foam.
Rebuild.

ccschua, thanks for highlighting the fix. I was following the head-fi thread but didn't come across any postings on this humming issue... but 500+ pages is not easy to cover. Thanks again!

Hi guys, sorry for inactive for few days, been outstation to somewhere remote without line coverage and internet connection at all!

RAV4: I think u may try all solutions provided by chua, if the humming is caused by the tranny, one of the solution may helps! again thanks chua for his dedication!

Anyway a piece of news for you guys, the discrete opamp will be sending out today, takes around 3days to reach Malaysia and dunno how many days to clear kastam! and the converters is currently stuck at Kastam there since quite heavy load of importing at port klang, maybe due to Merdeka Celebration! Anyway will update you guys with latest news, stay tuned!

This post has been edited by GodLuvSxS: Aug 27 2008, 12:12 PM

erm, which one is the headphone opamp, the one near the headphone jack(which got 2) or the one further back?

thanks

those two near headphone jack

ic.. i thot got only 1 opamp. so i have to change both or the one near the headphone jack only?

Think of it this way. The one opamp at the 3'o clock position is the DAC opamp. It amplify the signal and gives the output to the preamp (RCA) and also the headphone amp. Headphone opamp is near the jack and they are 2 of them (stock is NE 5532).

If u change DAC opamp, it will affect the sound at both the RCA and headphone amp. If u change the headphone opamp, it will only affect headphone sound (not affect RCA).

So far, some has said the OPA Earth / Sun at the headphone has produced good results.

so just need to change the DAC op-amp .

This post has been edited by yehlai: Aug 28 2008, 12:57 AM

If you use the preamp mode, wouldn't the headphone opamp also affect the sound?

depends wut brand n quality ..... if MIT is abt RM 120 , black rhodium factory termination is RM 200 + , cardas abt RM 450 factory termination
if canare abt RM 60 - 70 depends on the plug

This post has been edited by abel: Aug 28 2008, 03:09 PM

Anyone here have good condition Zero wanna let go? I might need to grab one for myself since im now selling mine with OPA 627 together.
P.M me

This post has been edited by yehlai: Aug 28 2008, 05:22 PM

There's some humming sound come out from my zero dac when switch on only, the sound were not very loud only if i put my ear near the amp. Is that ok?