Went and meet the seller today at Sunway Pyramid to get my DACs
Initially I told him that I wanted to buy only one DAC, yet he decided to come to Sunway Pyramid during Saturday near buka puasa time (really hard to find parking man, had to drive all the way up to the roof top to get my parking)
We went to Starbucks non-smoking area for an area with less noise in order to really test the DACs, seller decided to spend me a latte because today's my birthday! woot, free audition and free drinks lol, awesome. (btw, he didn't even check my IC

)
Anyway, he took out 4 different type of DACs, from OScon 330uf, OScon 220uf, Nichicon Muse and Elna Silmic2. He hint me on the signatures of each of the caps then suggested me to try every single one of them.
Started with OScon 330uf, I am not an audiophile person myself, so my hearing may not be as precise, neither is my explanation as well. Nonetheless, the OScon 330uf is more fun for me, I'd say the audio line has more variables. Suitable for people like me who listens to all range of musics.
Then I tried the OScon 220uf, the sound is similar to 330uf. There's a slight difference from 330uf but I couldn't sense it, perhaps my hear is numb after listening to the OScon 330uf. (I tested with several songs, including rock, hip hop, vocal songs for each and every DAC)
Then I tried the Elna Silmic2, whoa... the mids... is damn awesome, if you are a vocal or mid person and who could care less about the bass, this is the one to go. The vocals voice that goes through the Silmic2 caps is so precise and focus. If you'd listen carefully, you can even actually imagine the artist's lips shaping to produce the sound we call music.
Last I tried Nichicon Muse, the DAC that should be coupled with an AMP. Beware, nichicon is very clear, it drills to the detail of the music. You can really hear the minor minor details of the song, but the problem is... it's awesome that you can hear details. But overall, it gets tiresome for me because everything sounds so equally good and none of them outshine each other, making the song sounds flatter. However, if you're a bassy person, you should really give nichicon muse a green light

Spent about 2 hours trying out all these DACs, ended up buying three of them. One for myself, two for my friends.
In brief, I'd highly recommend this seller to everyone. Not only is he friendly, he's also honest about his products. If you were to find a seller, might as well find one who's interested and passionate in his field, and Slevin is one of those people.
*P.S: It really was my birthday yesterday lol.