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Sony PHA-1 portable DAC/amp - Page 21

post #301 of 497
Nice to know they are awesome I want to get them that's why I asked smily_headphones1.gif
post #302 of 497

one more...

 

I have not noticed a low high impedance difference yet ( using dac in) with my IEM's.  I do set the impedance hi lo switch to match the vol control impedance and that way it sounds good. It really shouldn't matter all that much unless there is something really wrong with the design (doubful). I don't remember the seller I bought from but they did not under report the value of the amp (33k yen, I think). They included me some "hello kitty" napkins, really funny smily_headphones1.gif

post #303 of 497

Got my PHA-1 today after a month shipping time. First impression is build quality is superb, feels solid like it will last forever.

 

First music test was with my not-even-broken-in MDR-1R's ran through USB with a Macbook Pro. This is my first experience with a headphone amp of any kind. From what I can tell after a few songs the bass sounds much better at louder volumes, thats about is so far...it pretty much sounds the same otherwise. I know its not the best review by far, but Ive only owned it for a few hours now.

 

 

On a side note, I tried the PHA-1 with my XBA4's and the power light would dim under heavy bass at loud volumes.

post #304 of 497
Quote:

Originally Posted by rc10mike View Post
...

 

 

On a side note, I tried the PHA-1 with my XBA4's and the power light would dim under heavy bass at loud volumes.

 

Work it! beerchug.gif

post #305 of 497
Quote:
Originally Posted by AJHeadfi View Post

 

Work it! beerchug.gif


What do you mean by that? Im guessing the low impedance of the XBA4s is causing too much of a draw on the amp, they never really needed an amp, I just wanted to see what would happen.

post #306 of 497

My experience with PHA-1 is, please give it some time to burn in, it will really open up.

post #307 of 497
Quote:
Originally Posted by tdk2013 View Post

My experience with PHA-1 is, please give it some time to burn in, it will really open up.

Likewise. Mine didn't begin to sound good until it had 50 or so hours on it.
post #308 of 497
Quote:
Originally Posted by barbes View Post


Likewise. Mine didn't begin to sound good until it had 50 or so hours on it.

 

+1 on that. I am starting to appreciate this little guy.
Reply
post #309 of 497

I was so tempted to get the Sony primarily because it's an all-in-one for my iPod Classic and iPhone 5. I ruled out the Fostex HP-P1 and CLAS as they were too expensive. However the fact that the PHA-1 has only 5 hours battery life when using iDevice USB input plus the fact that I did not intend to use the other mini-USB inputs at all in the near or distant future dissuaded me. So it became a toss-up between the HP-P1 and the CLAS. I settled for the CLAS (14 hours battery life) and when paired with my "old" but very very very slim Arrow 3G, the size was comparable to the HP-P1 yet gave me the flexibility to switch amps around. At this very point in writing, I'm listening to the CLAS paired with my cMoyBB and HD650. This is not meant to "diss" the PHA-1. If a newer version is launched, and let's face it, Sony launches new versions every 200 days (or so it seems) and if it has longer battery life, I could, no I would, be tempted again.

post #310 of 497
Quote:
Originally Posted by rc10mike View Post


What do you mean by that? Im guessing the low impedance of the XBA4s is causing too much of a draw on the amp, they never really needed an amp, I just wanted to see what would happen.

 

Enjoy giving the PHA-1 a thorough workout. I read (on Head-Fi) the XBA4's have an extreme impedance curve that is difficult for amps.

post #311 of 497

Anybody using this with an Xperia Z android phone?

I tried the Apex Glacier and was really impressed with the sounds but music was randomly skipping for a split second and didn't have time to trace the issue.

post #312 of 497
post #313 of 497
Quote:
Originally Posted by zenpunk View Post

Anybody using this with an Xperia Z android phone?

I tried the Apex Glacier and was really impressed with the sounds but music was randomly skipping for a split second and didn't have time to trace the issue.

I just purchased the xperia z and the pha-1. I assumed I could connect the z to the amp using a micro b to usb 2 connector as pictured here but seems not so I got the wrong cable. I will have to get a new cable a see what goes. I assumed you could connect based on the pics of this link. Anybody care to comment?

 

http://call-t.blog.so-net.ne.jp/2013-02-14

post #314 of 497

Thanks. I had a usb OTG and with the Glacier it was just plug and play (although no notification appeared that a USB device was plugged in). Apart from the random skipping it sounded great.

Rique, let me know how it goes. 

post #315 of 497

Already use PHA-1 with Note2 for about 1 week.
Just concern about quick battery draining when using DAC (microUSB connected with Note2 via OTG cable), I got 3%~4% per hour when normal use, while about 30% per hour when using DAC to listen music, it just got me mad.
Sony told us in its operation manual,

 

[/quote] If you are listening to music too loudly, the battery may drain even if the unit is connected to a computer, or an AC outlet using the recommended USB AC Aadaptor (optional) [/unquote]

 

So... they IMPLY PHA-1 will still keep charging its batter when you listening music with PHA-1 connecting to a desktop PC, but what will happen if a mobile phone is connected?
According to my own observation, I believe it do, anybody can confirm this? thanks!


Edited by tkbf1 - 5/11/13 at 11:12am
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