VSONIC VSD1S (upgraded version)

Great sound with very detailed and nicely textured mid range,adequately punchy bass, not overwhelming, decent highs.
Overall build quality is very good.
Very Fast and Prompt service from HiFiNage.
Thanks.

I am pretty surprised about the sound quality even out of the box without any burn-in. The soundstage is big enough for an IEM, the smooth flowing mids and sparkly treble, even the bass is tight and not overwhelming. Instrument separation is ample and rich detailed sound will blow you away. Nothing comes even close to this under 5k. It has got a slightly V-shaped sound signature. Rest assured, for an average user, its a fun sounding IEM.

Fantastic clarity with good bass...detailing is excellent...go for it...you will not be disappointed...

The order was received well in time with good packaging, thank you HiFiNage for such awesome product and delivery.

Now about the product:

Accessories: 1. I got 4 foam tips with it with different colours, they blocked all the sound from outside, however, I prefer the double flange tips provided.

2. Clip for over the ear design, a shirt clip.
Build quality: It feels sturdy and doesn't tangle at all, very good I must say.

Isolation: It was mediocre with any tips other than foam tips but I listen to it at home so no worries.

Sound: I did a burn-in of 100 hours before listening. The moment I put them on ears, my jaw dropped, the accurate fun sound that I was craving for years, it sounded like I am in the studio listening to monitoring speakers, great instrument separation and vocals were very lively.

LOWS: The bass is enhanced, not by much but I must say very punchy and tight bass, it's in the place, very fun to listen to, has a good texture.

MIDS: The mids of this IEM has good presence, a tiny bit fat excellent, just balanced and very lively.

HIGHS: The lower highs don't shine as the lows and mids, the upper highs have ok sparkle, the 10khz is bumped up for presence in this IEM hence can be fatiguing for a long time listening, so I just tune it down a bit with eq and its perfect.

This earphone has a slightly v-shaped signature which makes a very fun to listen to the sound, all in all, its super value for money, I never spent much money on a headphone, but after I put it into my ears I understood what I was missing, if you are reading this review and is a one who loves music to core depth, buy these!! These are amazing IEM's and worth every single penny. Grab it and show it off to your friends and watch their jaw-dropping LOL
GO GRAB IT BEFORE THE STOCK ENDS!!!!!!!

A big thank you to Hifinage for binging Vsonic to India. Shipping was super-fast, decent pricing and pre and post-purchase customer care is top-notch.

Build, accessories and comfort:

The plastic housing is light and has a good feel to it, although the comic sans lettering is far from classy. The metal swivel nozzles ooze quality and the cable looks like it can take a beating. I must point out that despite their over-ear appearance, the VSD1/S is equally comfortable worn up/down. The light housing and swivel nozzles contribute hugely. Plus, they include ear-guides for those tricky situations.

A decent number of tips are included with the VSD1S, that will tip roll you into a good fit. I particularly like the Vsonic foam tips. They are denser than comply memory foam tips but very comfortable. And unlike comply, they do not alter the sound(for me at least). One important thing to note is that the nozzle is thinner than most earphones, ruling out tip swapping from other earphones (unless they have a slim nozzle too)

Microphonics: Cable down is below average and non-existent when worn cable up. I observed no driver flex whatsoever.

Sound:
Source: LG G2, Sansa Clip Zip, Asus Ultrabook. The VSD1S is easily driven to ear-splitting volumes and respond well to EQ. All tracks were >256kbps.

The overall signature is V-shaped. But the V is not drastic and therefore plays well with all genres.
The bass is bumped over neutral with good presence. Not very linear though, with a gradual boost up to the midbass before dropping in the lower mids. The sub-bass is felt at average listening volumes, has a natural decay and is of better quality (read: control) than the mid-bass. The midbass keeps things lively. However, the drop in upper mids is more evident as a result.
The mids are not strictly recessed. They sit a row behind the ensemble and are sufficiently accurate and clear. The upper mids are gradually more emphasized (a trend which continues into the treble range). Female vocals are more intelligible than male vocals. In tracks that do not have much midbass presence, the mids really shine through and show how capable the VSD1S midrange is.
Having read reports of sibilance on the GR07, I was pleasantly surprised to note that this wasn't a major issue on the VSD1S and was forgiving enough. Yes, the treble is emphasized, and on occasion does overstep the line, but only when the recording contains stressed TTT's or shhh's. In short, the VSD1S treble is not a deal-breaker. On the contrary, it made the IEM more enjoyable.

The soundstage does not leave you wanting, with average depth and above average width. Stereo imaging is convincing and is helped further by high bitrate audio.

This must give you a picture of what makes the VSD1S a great IEM. It is versatile. It has a V-shaped sig that has been flattened out a bit, allowing it to handle anything thrown at it with aplomb.
It truly is amazing considering the price-point, and sometimes makes you forget that it only costs ~3K.

Full review: http://www.head-fi.org/products/vsonic-vsd1s/reviews/11749