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Kelephant
43
Jun 30, 2016
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The fiio m3 only pushes. >40mw while the xduoo x2 can deliver >250mw. Correct me if I'm wrong but that's a big difference. No amp needed there. I think I'll take x2.
Jun 30, 2016
6EQUJ5
444
Jul 4, 2016
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XDuoo X2 - 8 Ω – 150 Ω Fiio M3 - 16 Ω - 100 Ω
Only 50 Ω more but most IEMs are way under 100 Ω. The bundled IEM with the M3 is 27 Ω and they sound pretty good for being bundled. Most IEM bundled with players and phones don't sound very good as they are the bottom of the barrel cheap IEM crap. I'm quite surprised Fiio bundled some pretty decent open ear buds with the M3. I'm happy to sacrifice 50 Ω for 24-hour playback. Not everyone is going to be traveling with a DT990 600 Ω or an HD800 300 Ω headphone as they aren't exactly portable.
In no specific order, this is just a small sample size of IEM Ω measurements:
Thinksound ts02 - 16 Ω Macaw GT100S - 16 Ω Radius TWF31/TWF41 - 32 Ω TFZ Series 1 IEM - 12 Ω Ostry KC08 and KC08T Earbuds - 32 Ω / 40 Ω Fanmusic E6 - 32 Ω AAW W300AR CIEM - 16.8 Ω Beyerdynamic DX 120 iE Earphones - 47 Ω MEE Audio M-Duo - 16 Ω Chord & Major Earphones - Jazz & Rock 16 Ω / World Music 20 Ω Thinksound ts01.1 Walnut Exclusive Launch - 32 Ω Ortofon e-Q7 - 31 Ω OSTRY KC06A - 16 Ω NuForce NE800M Earphones - 16 Ω TFZ Series 1 IEM - 12 Ω Venture Electronics Monk Plus Earbuds Exclusive Red - 64 Ω MEE Audio Sport-Fi M6 Earphones - 16 Ω HiFiMAN RE-00 - 64 Ω Campfire Audio Nova - 22 Ω InEar StageDiver 3 - 40 Ω Macaw RT10 Sports Earphone - 16 Ω Audeo PFE 232 - 47 Ω Dynamic Motion DM008K - 32 Ω Dynamic Motion DM100 - 24 Ω Etymotic Research MC3 and MC5 - 16 Ω Creative Aurvana In-Ear 3 Plus - 28 Ω Noble 6 IEM - 30 Ω Beyerdynamic DTX 101 iE Earphones - 12 Ω Flare R2A - 16 Ω Beyerdynamic MMX 101 iE Earphones - 23 Ω Brainwavz S5 - 16 Ω CTM CT-400 Pro CIEM - 18 Ω Final Audio Design Heaven II - 16 Ω Final Audio Design FI-BA-SS IEM - 16 Ω NuForce NE750M - 16 Ω Little Big Sound NatureTones Seed - 16 Ω Etymotic Research Hf5 Portable In-Ear Monitors - 16 Ω Brainwavz Delta IEM Earphones - 16 Ω Westone W30 - 30 Ω HiSound Audio WooDuo 2 - 16 Ω Shure SE215 - 17 Ω Shure SE535 - 36 Ω FLC8S - 11 Ω
These are IEMs, but even then plenty of headphones are under 100 Ω and not difficult to drive. There wasn't any IEM I saw that was over 64 Ω. The only time you'd need an amp is if you're bringing high-end high impedance headphones with you and at that point, ​you'd want a much better player than the XDuoo X2 and Fiio M3 so you can take full advantage of them.
Jul 4, 2016
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