Welcome to Head-Fi, Sorry About Your Wallet!
I just upgraded recently and received my SF5's to days ago, this is what I posted in another thread:
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Ok guys, initiall impressions: WOW!
The detail is so much greater than the SF3's, the bass is nice and dooofy and the vocals just shine!
Comfort wise it's the same, however, the ccable on the SF5's I bought were pretty roughed up, and all green from the oxidisation, so I swapped the cables. Also using it with flip-flop mod, and they stick out as much as the SF3s. They are a bit bigger as they are dual driver and have the little driver housing at the back:
SF5's (white, mine are clear)
The SF3s dont have that little 'hunchback' thing, its just flat.
I'm very satisfied with this purchase, at $120 I think I've done well.
The great thing, is I've jumped from earphone to earphone, so I can feel the difference, whereas people tell me 'just buy the best one', todate I've probably spent enough for Triple Fi's or soemthing, but I'm enjoying hearing the differences!
Back to the SF5's.
Delta Goodrem - Brave Face
Fantastic, her voice sounds perfect and the drums/bass in the back shine as a result of the dual driver. They don't over power the song, but they def sound awesome.
Louie Armstrong - What A Wonderful World
Never heard his voice in so much detail, was such an enjoyable track to listen to, with the jazz instruments in the background.
Sakin - Braveheart Theme (Trance Remix)
DOOF DOOF - the bass is there, no EQ, and a wonderful punch, very alive. Not boomy as the SF3's were, which puts a focus on the highs in the track (all the electronica). Absolute bliss.
Linkin Park - What I've Done
Feels like I'm standing with Optimus Prime at the end of Transformers! Wow, love it, the guitar sounds absolutely amazing, and all the instruments aren't drowned out, everything shines. Vocals, are very natural, feels like a concert in your head.
Enya - Only Time
I cannot even describe how wonderful I felt listening to this song, just sounded oh so natural, and so serene. Gosh!
I'm very very happy with this purchase, and probably going to sell off my SF3's - was considering keeping them as a backup phone though, will see how things go as I am expecting a few more phones soon!
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SF3 = Single Driver and SF5 = Dual Driver, such a big difference, I am loving them so much, clearer tighter bass without losing quality in the highs!