oooppps I never know we need 3 sets. Now can u tell me, do I need this OPA627 for the Preamp stage, i mean just output to amplifier and speakers (no head fi)

is it easy to swap the browndog? u need a crocodile clip right.

I think the ZERO dac quality would satisfy you well, you can slowly play with it

LOL i think a OPA627 upgrade at the DAC section would be more than enough, should try the LM4562 at the headamp section since it's capable of driving high ohm headphone like your DT990

Well, you only need 1 set if you connect the DAC to amplifier and speaker Ok, let me explain about this, inside the ZERO dac there are 3 set of opamp, one at the DAC section then another two at the headamp section. I guess change the DAC section's opamp to OPA627 is more than enough cos IMHO OPA627 at the headamp is abit overkill since I believe the headamp not quite state of the art design

I think browndog is kinda plug and play thing, i'm not quite sure about the crocodile clip, let expert explain about this

Some good new!!
All Browndog adapter had been make into final product!! Big thank to tenTion bro for his help.

But....the bad new is: 2 out of 10 unit had some problem during making. tenTion told me he might be able to fix it. If worst case scenario, I will fork out my 2 units to let other got their adapter. Err...this mean I got no adapter liao

Anyway, I recieved some interest for this adapter. I might organise another non-profit bulk for this browndog adapter. But I need help from other kind soul who can help us make it into final product... Any volunteers??

I will post some photo on the browndog once I back home...Picture poison alway work!!

got any spare?? me thinks me interested in 1 unit...aka for 1 socket

wheeeeeeeeeeee
got my DAC back from empy!!! time to test it a lil

empy....post the mods u did pls

people ask me i wont know oso

Wow, serious poison!!!!! An internal pic would be great!

Here is mah list of short mods. Could have done more with my osci and mm, but i'm leaving on monday, so didn't have enough time.

1. Diode Bypass (reduce noise)
2. Stability and Noise killing mod for digital section (PS bypass replaced with Silver Mica)
3. Ground loop breaker mod (better caps)
4. More capacitance for the main analog stage, from 4400uF to 6600uF
5. More capacitance for the digital stage with Silmic II parallel, from 2000uF to 2330uF and bypass.
6. Cap replacement on analog output stage
7. Film cap replacement with german Wimas near the clock, DAC and supply lines.

This post has been edited by empire23: Feb 16 2008, 12:56 AM

got picture and review or not? how is the burn in?

is the delivery news of Zero available. is the browndog ready to deliver to us ?

Delivery news of ZERO should be updated within next two days

As pormised earlier. Some picture on the adapter. They still at Tention bro hand. Picture taken by tention

Bottom view..Nice pointin legs..hehe


Holes to be fill by Opamp papa...

Attention to all who order:
1. mikelanding - 2 units
2. nicholas_1213 - 3 units (+2 OPA627AP) [Paid]
3. Kyl3 - 1 unit (+2 OPA627AP) [Paid]
4. kwekeugene - 1 unit (+2 OPA627AP) [Paid]
5. ccschua - 1 unit (+2 OPA627AP) [Paid]
6. stormspider - 1 unit (+2 OPA627AP) [Paid]
7. dark_evilz - 1 unit (+2 OPA627AP) [Paid]

Please email me your Shipping detail to shawn_tew at hotmail.com. Please do not pm me coz no more space liao
Format as below:
Full name:
LYN nickname:
Address:
Contact number:
Once I got the adapter from tention bro, I will sent out to U all.

To other who interested to order the browndog adapter but miss the previous bulk. Good new!! I will organize another non-profit bulk around 1 week time. Price will be slightly higher (higher shipping cost) coz this batch only order the part for adapter without other items like last time. But dun worry, will be RM1-3 higher than previous bulk. Do pm or stated here if U are interested.

aiyo, really hope to see my zero arrive this weekend lah..

Sorry for late announcement! As promised I'm here to let you guys know about the latest status:

As what I mentioned last time, too bad the stock unable to reach my supplier's hand by 3rd of February and the whole China is having mostly 2 weeks holiday since that day, and the logistic service my supplier used just back to normal activity on this Monday, so the stock is now on the way to the supplier, and it would reach by this Friday.

The supplier promised to send it out on Monday, I know you guys have been waiting long but hope that you guys understand the situation, all these China people have been in dilemma due to sudden snow bizarre and they nearly unable to balik kampung for CNY dude to transportation owned by the snow bizarre

Anyway, that's all I could let you guys be updated, any latest update I will post it up ASAP

no problem man, we all be patient.... its worth the wait...

willing to wait but i'm going back to hometown for 2 months starting march
don think will bring back

Thanks
Emm ... anyway I will contact you once the stock arrive

patience guys....itll be worth it.

trust me

How's your modded ZERO sounds so far? Any improvement after few days of burning-in?

havent been listening to it lately....been too busy...cant concentrate doing work....headache like shit now with this stupid project

okie..so i got bored and decided to install the OPA2107 opamps into my ZERO...

Metallica - Through The Never
the highs are much tamer now...although even with stock it was real good already...but soundstage is VERY much improved. first time im hearing things where theyre really coming from... i.e left n behind and not just left only...that kinda thing...

also the intro to nothing else matters...im hearing where the guitar is echoing in the room. never heard that before...

there is 1 drawback though... mid range. the DT990 already has a recessed midrange...pair that with the airy sound signature of the 2107 the it makes the recessed midrange apparent.

lazy wanna take out and remove for now so ill just leave it be...i like the way it sounds oso anyway

madman: ur DAC modded by empire23 right? want to A/B test with his Yulong DAC (mod) ? the DAC is with me now. i am interested to test ur ZERO DAC as well. somemore i dont have qualified headphone to test it, i am using philips SHP2000.