Headphone Reviews and Discussion - Head-Fi.org
YoYo JoKeR
YoYo JoKeR
Nice review detailed. Can international buyers buy it? I wanna buy :p
thatBeatsguy
thatBeatsguy
Thanks!
I'm pretty sure international buyers could purchase this. User bhazard should have most of the details, because I live in mainland China and only needed shipping by land. Merry Christmas, by the way!
SlimShadyMJ
SlimShadyMJ
Nice review. And funny name hahah. You've convinced me that I need these lol. I love it when iems that are cheap really surprise you with the sound quality. Also, how difficult is it to teach yourself the piano? I've been meaning to learn how to play it for what seems like years now.
ivo001
ivo001
This is a great, very detailed review.
 
I have however one question:
I bought the first version of pistons (silver). Are those new gold pistons worth buying as a replacement? Or is the difference not big enough?
thatBeatsguy
thatBeatsguy
@ivo001 
 
     As I don't have the original Pistons in my possession (I'd love to get them when I have the chance), I cannot say for sure. However, I recall someone say that there is a significant boost in midrange clarity, and a smoother sound signature overall. I think you'll like it.
banjoanton
banjoanton
This is a absolutely great review. It actually made me buy my own pair of pistons. I'll hopefully leave a review afterwards!
Thank you! 
MarcadoStalker7
MarcadoStalker7
Awesome review. Its price makes it very tempting *-*
egosumlux
egosumlux
Thanks for taking the time. Let me tell you you got me interested in them and don't beat yourself up for having the Beats I had the Vmoda original LP before my foray into hifidom so everyone makes mistakes....hahahahahha
1clearhead
1clearhead
@ivo001
 
I have all the Pistons and I can tell you that "thatBeatsguy" is completely right! The Silver Pistons -originally called "Xiaomi Earphone Plunger Music Partner", has boosted midrange and better overall balance. But, the copper colored pistons has better details and clarity and a fuller sound; let's say like full-size headphones! When I compare all my Pistons (since they all carry similar sound signature) to my line-up of full-size headphones, the Xiaomi Pistons are the only IEM's that sound like I'm wearing full-size headphones. Now, that's saying a lot!
 
I believe, this is what makes these IEM's unique.
 
But, warn you! The Xiaomi Earphone Plunger Music Partner are extremely hard to get now. You might either end-up with a fake or a defective one. Xiaomi don't carry these anymore. So, anyone trying to get the silver one's might get lucky with a vendor that still carries the old stock.
 
To conclude, it is worth the effort having both the silver and the copper pistons, in my opinion.
maguire
maguire
loved the Review...What was your opinion about the mod V unmoded versions?
Thinking about the mod but enjoying them stock so I dont know?
recarcar
recarcar
Thanks for the review! Was really impressed by the sound quality of these. They are easily becoming a go to iem for me. 
Badelhas
Badelhas
Very nice, rich and detailed review. I agree with you all the way. Congrats
cjs001
cjs001
Hmm interesting.
 
Beryllium is expensive but not 5 times more expensive than gold. It costs around 370-400ish $ per pound of pure Beryllium whereas it's upwards of 16,000$ per pound for gold. Given that the company touts that it is a mere 2 µm thick, with 10mm diameter driver, that would mean an "assumed" Pure Beryllium diaphragm of 0.0011618 g in weight. So if we go by pricing and density of beryllium, the raw cost of the drivers are a mere 0.00104562$. That is if you ignore the manufacturing cost. But they did say it's an alloy so I'm guessing the amount of Beryllium is vastly lower than that, probably less than 2%. Whether the presence of such low amounts of Beryllium makes any difference to audio quality? I'm highly doubtful, but if they are actually really using beryllium - even in trace amounts, I'm guessing it probably helps. Though I suspect it's more or less just marketing ploy.
 
Finite element analysis comparison of aluminium, titanium and beryllium definitely shows differences between the three but that's on a theoretical 100mm driver diaphragm geometry. Given the driver size in the Piston is around 10mm I doubt using other materials would have significant advantage over beryllium. Though I suppose if the headphone sounds good for the price, who cares?

http://www.vueaudio.com/about/beryllium/the-use-of-beryllium-in-transducers/
http://www.audioholics.com/loudspeaker-design/loudspeaker-drivers/diaphragm-material
http://www.beresources.ca/AboutBeryllium/BeryllliumPrices.htm
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