[YtseJamer]

  shigzeo said he heard some hiss. Can anyone sensitive to hiss comment, from either the beta units or a production unit? I'll be using my recently acquired ER•4Ps and would think I'll be able to hear it with those if there's any that's 

 
X2.
 
It's also a red flag for me because I want to use the HA-2 with my JH13s.

 

[HasturTheYellow]

  what Frequency range does the Bass boost targets?

 
Hot off the presses:
 

Normal: No bass boost applied. The frequency response is flat.
 

Bass Boost: Bass boost is turned on. Low frequency band gets a boost.
 

Bass Boost Detail: Bass frequency below 100 Hz gets about 5dB boost. The boost gradually decreases from 100Hz to about 500Hz where it reaches the normal non-boosted level.

 

[gerelmx1986]

 

  what Frequency range does the Bass boost targets?

 
Hot off the presses:
Normal: No bass boost applied. The frequency response is flat.
 
Bass Boost: Bass boost is turned on. Low frequency band gets a boost.
 
 
Bass Boost Detail: Bass frequency below 100 Hz gets about 5dB boost. The boost gradually decreases from 100Hz to about 500Hz where it reaches the normal non-boosted level.

Thanks a lot for the info, indeed a good bass boost (certainly looks goos for my MDR-1T yo give those a punch)

 

[ImmaLizard]

Just received my HA-2 and so far I am really impressed. Very neutral to my ears and pairs really well with iPhone and PM-1. More updates to come as I get some more time with it.

 

[Wurstteppich]

Ans shops in DE which will dell this unit?

 

[gerelmx1986]

Ans shops in DE which will dell this unit?

maybe you can try purchasing it online, but it seems is only available for US/Canada/ and my country (México)

 

[ImmaLizard]

Just tried using HA-2 with my iPod classic with my 30 pin cable. Unfortunately it is not able to take digital feed like my HP-P1 can. Bummer.

 

[HasturTheYellow]

Based on the Apple specifications an iPod Classic 120GB running 2.0 and iPod Classic 160GB running 2.0.3 software should be compatible with the HA-2.

 

[ImmaLizard]

Just tried again and it works. Sorry for the confusion. Might have had it set to B initially.

 

[HasturTheYellow]

Good to hear that it is now working properly.

 

[miceblue]

Definitely interested in hearing someone's impressions on the HA-2 with LCD 2 and/or Mad Dogs. Was looking at getting a Fiio E12, but if this is a good deal better, I may just keep saving for this. 

I personally haven't tried the HA-2 with a planar magnetic headphone other than the PM-3, but based on how the two sound with my 669 Ω AKG K240 M, I would put my money on the HA-2's amplifier section over the E12. I find the E12 to sound grainy in the treble section, the instrument separation a bit blurry, and has a woollier-sounding bass to me in comparison, which I've always found to be the case with the E12.

 
shigzeo said he heard some hiss. [COLOR=0000FF]Can anyone sensitive to hiss comment, from either the beta units or a production unit?[/COLOR] I'll be using my recently acquired ER•4Ps and would think I'll be able to hear it with those if there's any that's 

X2.

It's also a red flag for me because I want to use the HA-2 with my JH13s.

Shigzeo's remarks with the background hiss were with really sensitive in-ear earphones. I was a beta tester for the HA-2 and I think my ears are just really sensitive to the background hiss since I could hear it with all of my in-ear earphones (Shure SE215, JLab JBuds J5, dollar store earphones). When playing music, I think the noise is pretty minimal and it doesn't bother me as much unless it's during a really quiet part.

I did let one of my friends try out the HA-2 (final beta) with his myriad of in-ear earphones ($100-300 range) and after about an hour's time with it, he didn't complain about the noise at all, so I don't think it's a big problem for most people. My Geek Out 450 on the other hand....yeah that has a LOT of background hiss relatively speaking.


I'm not sure about CIEMs though since neither of us have one. Maybe shigzeo can chime in on this?

 

[feverfive]

I...must...resist.
 
I don't even "need" a device like this, but I have respect for Oppo + the design of this gadget is right in my wheelhouse.  I wonder how it compares to the Meridian Explorer (1st version, but with fixed output impedance).  I'd never use this as anything more than an amp w/ my AK120ii (and even then, very seldom since I love my Vorzuge Pure II amp), but I wouldn't mind outputing via USB from my MBP & my iPhone 6 (which I RARELY use for music).

 

[vasunshine]

Just received my HA-2 and so far I am really impressed. Very neutral to my ears and pairs really well with iPhone and PM-1. More updates to come as I get some more time with it.

 
Wow that was fast. You may be the first one received it. How long did it take to ship? Just place my order today...

 

[Poimandres]

I would be interested to know if you hear any hiss with sensitive iems.

 

[HasturTheYellow]

   
Wow that was fast. You may be the first one received it. How long did it take to ship? Just place my order today...

 
They will ship the same day or next day. So delivery is usually a week or less.