After comparing these two earphones I've been going back and forth about which one I prefer. The super.fi 4vi definitely have a clearer, more detailed sound. The treble is really crisp and music sounds well balanced, as if you are in the middle of a concert hall. However bass is fairly light, but punchy and defined. You can really hear the different layers of music and instrument seperation with these headphones.
The V-moda vibe duo's have a very different sound, darker and boomy in regards to bass. Music sounds smoother, more rounded off, there is less definition of the instruments. Listening to these sounds like you are sitting next to the subwoofer in a home theatre with the rear channels far away from you.
I like the way some music sounds with the vibes such as certain trance tracks, but listening to these headphones for a little while becomes fatiguing from the strong and booming bass. Very different from the very analytical and treble emhasis on the super.fi which can also get fatiguing from the very sharp treble notes.
I'm having a hard time deciding which earphones I prefer. If you like music where you can hear the seperation between instruments and especially enjoy soaring vocals and little details in music the super.fi 4vi's are for you. If you like booming bass like you're sitting in the backseat of a car with 2 massive subwoofers in the trunk, and don't care too much about clarity, the vibe duo's are right for you.
As far as construction and design is concerned, I like them both equally. The vibes are more bling with the chrome finishes, but the super.fi have an understated elegance. The button is a easier to use with the updated super.fi clicker. The vibes clicker switch is on a long barrel containing the mic and it's harder to find and press, but sound quality through the mic seems to be a bit better with the vibes. I like the cord of the super.fi better in terms of weight and tangibility, not as flash as the duo-toned metallic vibes but it's easier to manage.
They both come with decent cases, v-moda comes with a little pouch which easy to use and the super.fi's come with a slick little plastic case that's very pocketable and has a zippo flip up action. My preference is to the super.fi case, feels very sturdy and looks cool. Also, both earphones come with an assortment of silicone tips. The v-moda headphones are more comfortable than the super.fi, but at the cost of lowered isolation from the outside world. Super.fi packaging is more professional and it screams quality, I don't like the v-moda cheapo blister pack.
My ratings:
Ultimate Ears Super.Fi 4vi - 8/10
- Great iPhone earphone suitable for all types of music, great if you like your music with crystal clarity and separation of instruments. Nice looking kit all up, from the packaging down to the stylish metal buds and solidly constructed cord/mic/clicker. If you enjoy sitting next to a subwoofer, these headphones are probably not for you as they are light (but defined and punchy) in the bass.
V-moda Vibe Duo - 7/10
- Bling factor, these are for the trance/dance/hip-hop crowd who don't mind losing clarity in the music in favour of big bass. Can be fatiguing on the ears with the constant bass drone, colours music to favour the low end strongly. Great looking earphones that stand out (I have the chrome version). Clicker can be a bit hard to find and press, but not a deal breaker. Surprisingly light earphones and cord, very comfortable to wear.