Hifiman hm901 開箱分享

iamsocheap

muffy 發表於 2013-9-26 12:56
你對IEM卡既評語好正
如果可以接近平衡而又不太重口味的話
我會秒入!

約出黎試下先囉?哈哈

muffy

iamsocheap 發表於 2013-9-26 12:59
約出黎試下先囉?哈哈

今晚MK見?

iamsocheap

muffy 發表於 2013-9-26 12:57
btw 點解標配卡出唔到廠既...
八卦問下

因為某問題，所以廠方話想確保QC無問題先出廠咁話，話要將全部標配卡全新CHECK過同煲完先出廠。

iamsocheap

muffy 發表於 2013-9-26 13:01
今晚MK見?

今晚我唔得呢...

muffy

iamsocheap 發表於 2013-9-26 13:02
因為某問題，所以廠方話想確保QC無問題先出廠咁話，話要將全部標配卡全新CHECK過同煲完先出廠。 ...

哇咁我果張會唔會有問題架?
我最近買架

iamsocheap

muffy 發表於 2013-9-26 14:02
哇咁我果張會唔會有問題架?
我最近買架

我諗應該無問題嘅...

tleonard

Better be safe than sorry?

http://www.head-fi.org/t/605982/hm-901/1680

This must really be my unlucky day. You guys won't believe what just happened!!

I fitted my RE600 into my HM901, on it, left side of the earphone started heating up seconds into the song in my ear followed by lots of distortion sound and i quickly detached it from the player.

left it for awhile to cool and when i plugged it in again, the driver on the left side apparently burnt out or something and there was no sound on the left side. I tried fitting the RE600 into my handphone and computer using the convertor and still no sound on the left side. Time to send it back...BUT ..thats not the end of the story...

I then tried using another Westone 4R on the HM901 and yes, you guessed it, no sound on the left side again. Tried fitting a headphone onto the player and no sound on the left either. SO NOW, i have got to send BOTH the HM901 and the RE400 back!! I was already worried when my device would heat up seconds into the song for now apparent reason and now my suspicions are confirmed. I am very very disappointed with this effort from Hifiman. This is my first purchase from them and to get not only one device busted BUT BOTH on the same day is really bad.

Hopefully no one gets into the same mess as me. I was lucky that i pulled the plug out of the HM901 or who knows that thing might have exploded in my ear or something. Anyone who has gotten into the same mess as me?

I have the Hm901 with the standard amp module. I use the RE600 balanced (no extension). My ears are still ringing and hurting at the moment, might have to see a doctor or something if this persists. Have forwarded a mail to hifiman and the dealers. I really think twice about using it now (i can't anyway unless i only want to listen to a single side)....might really explode or something if i use it again.

http://www.head-fi.org/t/605982/hm-901/1710

Thanks for KillerX's post. I have confirmed with him that it is a standard amplifier module damaging problem because his 901 line out is working fine. I do have a feeling it is a stupid problem that can be solved by burn in in factory, but we need to do more research other than burn in. I have called our manufacturing manager 5 min ago and we will check all of our stock standard card and make sure this problem will not happen again. We will check our AD8397 vendor about this problem as well and make sure it is not a chip problem. We are also working on QC procedures so that we can 100% get rid of defective amp cards before shipping. From now on we will buring in all amplfier modules for 48 hrs before shipping.

peterwongPW

呢部真係好野黎,第一次試果時,已經比佢個音場吸引左.....

muffy

tleonard 發表於 2013-9-26 16:38
Better be safe than sorry?

http://www.head-fi.org/t/605982/hm-901/1680

一個好好既藉口去買其他卡...

muffy

iamsocheap 發表於 2013-9-26 16:05
我諗應該無問題嘅...

師兄想問你充電既時候隻火牛有無話好鬼熱?