I am going to buy the HD600 or 650 in future. So the Amp should drive them well, too. No one used the HA1 with e5?

I can detect it even in a normal volume. My god! My ipod is going to die? But it is ok when i am using the B&O A8. And if i adjust the e5 inserting angel. Turn clockwise or oppsite, the noise will dispear in some position.

Anyone give some advice regarding Corda HA-1? I do appreciate Jan's build qaulity. But how does it work with E5? Anyone try?

I can clearly hear operation noises such as the hard disk reading. It is serious. Is it inherent for ipod 3? Or just a specific case for mine?

Thanks everyone! I got a Total Bithead. But the hiss is terrible. Micro desktop AMP should be my preference. I dont want another mobile amp. The total bithead is fine with my HD590. Now i am considering : Corda HA-1 MK2, Jan said he can reduce the gain factor to reduce the noise, but i worry...

Buy a e5c. But find there is serious background noise together with my Total Bithead. What is the most valuable amp for e5c (quite and good drive)? I am considering the CORDA HA-1 MkII and Emmeline SR-71. What about others? Price don't excess $500 (student budget) I do need help. Thanks!