Some owner did try the RCA female and removal of the capacitor situated beside the RCA female

If i get adventurous enough I might try the whole mod after my A levels Can't wait for the amp to arrive. Got any ETA? My Sennheisers sitting on the desk doing nothing at the mo

This the front of the PCB i not yet complete the mod waiting the parts to arrived
i have the PCB drill but not dare to do hehehe



This post has been edited by abel: Oct 3 2008, 08:57 AM

Yes. Mod is fun. After Mod, the ZERO DAC can surprise. it is very interesting about ZERO mod. even small mod can bring quite some improvement.

That is another matter to connect the OPA. you need to find out the 8 pin connected to which resistors and Caps, then you connect the OPA extend cable to the resistor and caps.


+12v should be connected to one of the Elna caps and another 6 pin is connected toresistor another 1 is GND


Eddy Lim

This post has been edited by eddylws: Oct 4 2008, 09:00 AM

modding can be a very fun stuff.

Yup, i plan to mod as a hobby after my exams. Never really soldered before, but it looks fun. Haha. I plan to ultimately build a beta22. Kinda ambitious but not impossible. Just need to source for the parts.

Dont think solder is difficult. It is simple. google the net for some basics of soldering.

On ZERO board, it is sensitive. Dont touch the board for too long.

thanks eddy i try to trace the opamp see connect to which cap and resistor
that part of cap i change because i saw is near the opamp soo change the cap will improve the sound modified i still noobie

This post has been edited by abel: Oct 4 2008, 03:36 PM

yeah i went to check the basics of soldering. Got myself a capalang 6 ringgit soldering iron + 6 ringgit solder sucker. Lol. I'll go play with some old spoilt electronics.

Hi,

My advise better get a good soldering station & de-soldering gun, if not will easly spoil the PCB board.

If you affordable get Hackor Sucker (de-soldering tools) is around RM60, Waller soldering station RM240.

Eddy Lim

wah this one 'noh meng'. u need to have deep pocket.

Yes, you did good choice. reading on Burson webpage If you palning to install the HDMA put in Elna/Blackgatge for the OPA powering caps that can kill up those current noise from the +12v.

Eddy Lim

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Added on October 4, 2008, 8:32 pmThis post has been edited by eddylws: Oct 4 2008, 08:47 PM

i think now Willer cant get for that price i check farnell all above RM 500 ++ octave still got stock or not the Waller 921z nvm my fren have it can borrow from him hehehe

This post has been edited by abel: Oct 4 2008, 08:46 PM

Lucky I dindt kill my board. they are many ways to mod. I am using the proton saga way first. (of course proton saga dont have air bag like mercedez)

good think never got cheap....

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Added on October 4, 2008, 9:02 pmYes, octave still got. I got it from octave also.

This post has been edited by eddylws: Oct 4 2008, 09:02 PM

ok it sell for RM 240 ??? sure heheh i try to ask yap and see

My bad, when i asked earlier if anyone had done "this mod" before, i posted the wrong link. The link is here. LINK

Now has anyone done THIS mod before?

That is a different mod than what we had been doing. it deals with output stage, bypassing the opamp and directly couple to the tube.

What we had been doing is to change different OPA such as Earth, Sun and Moon (coming) to give different sound quality. By putting in Earth and snipping the output decoupling cap, ZERO DAC give a big jump in the transparency and detailing and accuracy, rivalled the sound of expensive cdp.

Zero Dac with Earth does give value to my old timer CDPs that have good built ( but lacking in DAC capability ) a big boost, thus saving me the money to hunt for a new and more expensive CDP.

Moreover, in my opinion the quality of new entry level CDPs are no match than those old timers. Coupled with Zero Dac, my old timer CDPs are given a new lease of life, at acceptable low cost investment ( Proton Saga level ? ).

What am I saying is there is no regret for me to buy a Zero Dac.

The only problem is how to keep tracks of so many moddings going on , for a person with ZERO tech background ( sorry, i am from financial school ) . People here are taking 5 steps a time, I am just happy to take only one step at a time.

What is Output Decoupling ( snipping ) ? can google the term ?

P/S > THANKS TO THOSE WHO HAVE DONE SO MUCH R & D ON ZERO DAC.

This post has been edited by SKY 1809: Oct 5 2008, 06:14 PM