About Cap Mod of our OPAs:

        Some peoples enjoy to add the capacitors on OPA, through that to upgrade the SQ .  We through a lot of listen and test by professional equipment , the issue see Figure 1.
        It need add two capacitors , one connect V+ to earth , another connect V- to earth .  The earth wire wanna connect to GND of the gear.  Through this Cap-Mod can  upgrade the sound and  technically performance  .
       If don't connect the earth wire of OPA to GND , Figure 1 Cap-Mod  become Figure 2 Cap-Mod .   this Cap-Mod only need a capacitors connect to V+ to V- , it can upgrade the sound but not upgrade the technically performance.
        The technically performance can perform on the professional equipment and let us know what had upgrade .
       What the capacitors we can use ? 
       Only wanna  change sound color ,  use 0.01 UF had be  OK .  But we commend use 0.1 UF to 1 UF , this way we can easy to hear  improve of SQ .
       Not any capacitors can use by Cap-Mod . Different capacitors will take different sound , so the capacitors need choice by self sence .  For example:
       WIMA can take more fast , dynamic and clear of SQ .  but if you wanna sound be warm and  thick , don't use WIMA ,  oil- cap  will be a good choice .
       Our use EVOX MMK capacitors in Cap-Mod of our OPAs .  These  capacitors name call  RIFA ago ,   but now name call EVOX , the sound had soft and  clear .
       Our OPAs  have upgrade to the best Cap-Mod , so people don't need add capacitors on our OPAs .

Welcome to OPA testing. U are much lucky than me or Abel in the sense u are rolling HDAM whereas we are rolling opamp like 627, 1057, etc.

I have those evox cap. U can use it and solder it onto the OPA Earth.

This does not apply to OPA Sun loh.

Hi steve,

are u coming over for a review of the DAC 100. RAV is interested and I guess many others.

I mean Sun old version (Without cap) is different than the Sun V2. Sun V2 modified the cap, resistor and additional Evox cap.

The cap is free of charge. just how to send to you only.

Yours is a black wire connected to the casing. Remove that and plug to the screw tap.

Welcome to OPA testing. U are much lucky than me or Abel in the sense u are rolling HDAM whereas we are rolling opamp like 627, 1057, etc.

I have those evox cap. U can use it and solder it onto the OPA Earth.

This does not apply to OPA Sun loh.

Hi steve,

are u coming over for a review of the DAC 100. RAV is interested and I guess many others.

I mean Sun old version (Without cap) is different than the Sun V2. Sun V2 modified the cap, resistor and additional Evox cap.

The cap is free of charge. just how to send to you only.

Yours is a black wire connected to the casing. Remove that and plug to the screw tap.

Most people like to snip, but me dont like it. u can try it, and it would be fun. before try it, do u feel your system is bright or not.

that is very dangerous act. The power connector pin is not insulated. If forget to off supply can get electrical shock.

lol
i have unplugged everything before doing anything on the wires.

btw u using mine earth or sun hdam to try solder on yur zero dac? 
u burn my hdam i will take yur heed for replacement  lol a great replacement btw 

lol, that's mine lah.
I just got it from my bro.

yours is newer batch got white caps, mine is older one without the caps.