[udo]

Quote:

Originally Posted by jenhwa you should not share the ground ....it affects the Sound Quality there are four pins left signal/left ground/right ground/right signal

Did you see that both grounds are connected at the bottom of the board?

 

[TigzStudio]

Quote:

Originally Posted by udo Did you see that both grounds are connected at the bottom of the board?

Yeh I noticed that!!

should we seperate this ground on back of pcb you think?

and then use one ground for L and one ground for R?

 

[JJ15k]

OT : just noticed head fi is the first hit when googling chinese dac

This thread is no 2.
Good luck on your mods tiger

 

[yo2tup2]

Quote:

Originally Posted by Ori I fully agree. The RCA out should be replaced with insulated jacks and the connection to the main board should be via a twisted pair. Even better if you shield each pair and ground the shield at the PCB side only.

What wire thickness do you suggest for this? Would a solidcore 28gauge be too thin for this application?

 

[Ori]

Quote:

Originally Posted by yo2tup2 What wire thickness do you suggest for this? Would a solidcore 28gauge be too thin for this application?

22-24 AWG is more appropriate and solid core, of course. A shield is not a must, but can't hurt either.

 

[TigzStudio]

What do you guys think about this stuff for the chasis of the Zhalou?

http://www.partsexpress.com/pe/showd...number=268-010

 

[RogerWilco]

Quote:

Originally Posted by JJ15k OT : just noticed head fi is the first hit when googling chinese dac This thread is no 2. Good luck on your mods tiger

WOW--i had no idea.

 

[jenhwa]

when the tdk ferrites made a difference,
it made me think ...
the case is too small, transformer too close to circuit, create noise
short of changing the case ... what could I do ?

then i remember , we use to cut up unetched PCB to use as shielding,
not exactly fun in a tight fit, so I unbolted the transformer and wrapped it in

kitchen aluminium foil ....hahaha ...it actually works ... cheapest tweak yet!!!

 

[RogerWilco]

Quote:

Originally Posted by jenhwa when the tdk ferrites made a difference, it made me think ... the case is too small, transformer too close to circuit, create noise short of changing the case ... what could I do ? then i remember , we use to cut up unetched PCB to use as shielding, not exactly fun in a tight fit, so I unbolted the transformer and wrapped it in kitchen aluminium foil ....hahaha ...it actually works ... cheapest tweak yet!!!

But how did it improve the sound?I still have some copper foil here i had thought about using.I did put some of the copper foil on the underside of the top .

 

[jenhwa]

the background is more quiet, anyway it cost nothing to try

if you hear something and you like it just add more layers

you don like it peel it off, easily reversible

 

[uzziah]

somebody drop me a PM when i can buy zhaolu2. i can't read this thread any longer

 

[jamesp]

Quote:

Originally Posted by uzziah somebody drop me a PM when i can buy zhaolu2. i can't read this thread any longer

Me too...please....

 

[TigzStudio]

lol. yeh this Thread has started to slow, they need to hurry and release the Zhalou 2.

 

[aznsensazian]

good lord, this thread has grown out of proportion. We will need a separate zhoalu 2 thread when it comes out and i bet in just a few weeks, that thread will have an insane amount of posts and dare i say could topple this one

 

[TigzStudio]

who has big enough resolution to see all the page numbers at the bottom of the screen? ehehe