lol... i have no idea when i can done it like tat.. as i m still burning in with my latest mod with my little Juli@... so... stay tuned la.. i will keep my self update..

seriously i dun know how to do it my self like lampizator.. may b some 1 can guide or i take some time to consult some pro or my sifus...

it's not something easy to be fine-tuned to perfection sound.. haha. takes long long time man..

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Added on September 18, 2009, 11:13 pmLatest news of burning in my Juli@ after 50HOURS...
sounds like.... hmmm RM10k transport la..
don know how to mention it..

Soundstage.. warm, detail.. dynamic.. accurate.. nevertheless REAL sound..

bear in mind to DIGITAL CATEGORY OF AUDIOPHILES....
JITTER IS ANALOGue that has a straight relation to power.... Power source is the core of sound quality regardless of how high end chips or component....

look at my mods of JULI@, A REAL HIGH END oscilliator CLOCK has not installed ... wat if it has installed? lol..
sorry to your all.. i have no camera yet.. cant show u my trafo and power filter stage... previous picture was taken by my friend.. hehe
i expect the real sound of my MOD .... after 100hours.. with Sanyo.. OS-CONs...



will keep ur all update...

This post has been edited by vir___killer: Sep 18 2009, 11:20 PM

latest mod with power amps

Obbligato Copper caps 0.1uf
1 for AC bypass cap
4 for DC rail bypass cap

Black Gate N 50v / 4.7uf
2 for input signal coupling

100hours later it sounds warm, transparent, open sound.. nice bass oso..

i have just posted my external power supply of my sound card too!

This post has been edited by vir___killer: Oct 5 2009, 01:45 AM


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what amp is this....?

so you change the caps....then....?

very nice mods there, how i wish i understand electronics like you ; )

my amp is Adcom GFA-555 MKII

hmm

just now the sound changed again lol.. hmm overall is nice but just lack of abit high frequency extension.. probably its due to the obbligato copper caps..

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Added on October 6, 2009, 12:58 ami know a bit only.. may b not as u... hmm i see ur setup oso got mods wat.. i tot u know some of it too?

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Added on October 6, 2009, 1:06 amhey ... i got some updates regarding to my esi Juli@ sound card.. previously i use SANYO oscon for all of the caps...

after power amp burned in.. sound lack of high frequency extension...

the oscon cap was located as input bypass b4 the 5V regulator.. it is replaced by Rubycon ZL 10v / 220uf instead of oscon.. only 1 cap need to be change...
ZL i is a kind of brighter resolution.. too much of ZL is no good for EAR loll.. especially with bright systems...

now temporaily the high frequency just being release from the prison or FRIDGE LOL..

thank you...

This post has been edited by vir___killer: Oct 6 2009, 01:09 AM

Adcom...no wonder seams familiar.....

vir killer, before cap swamping party you better measures the DC from the output of the amp....then try adjust the output bias to reduce some DC offset. then you'll know how good if sound plus to restore that lack of high frequency.....

the obbligator takes sometime to shine....give it a week or two. FWIK obbligator copper case sounds bright with a good detail. some will like it but some said too bright....

Interesting mods on the Juli@

IMO the final solution is to... just take the PC out of the equation. And replace it with something like this:
http://www.diyaudio.com/forums/showthread....t=142562&page=5

Or just buy the new Naim DAC that plays files directly from a USB stick.

i dun dare to touch the DC biasing stuff.. Cos tat must need to a CRO for it la.. Wrong bias can burn the transistor..
haiz i put back my juli@ rubycon ZL cap to oscon edy.. cos it sound dull bcos of the blackgate has not full burned..
now still waiting for my blackgate N to be stable 1st.. i ask my fren he say it has to be 500hours like VCAP..
so.. just stay calm lo..

by the way, i m preparing my next project DAC with TUBE OUTPUT STAGE ehehe.. sounds good HA??

I want to make it like this.. but mine will using most audiophile parts for it.. HEHE..

This post has been edited by vir___killer: Oct 9 2009, 10:32 PM


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bro, what tubes will you be using for the DAC?

i think 12AT7(ECC81)

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Added on February 13, 2010, 7:52 pmi sell out my stupid solid state adcom gfa-555 and harman kardon citation 25 edy.. haha now change to tube.

now my amp is this

100% TUBE SOUND SATISFACTION

This post has been edited by vir___killer: Feb 13 2010, 07:59 PM

walao eh change again ah?