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Sony's DSD-capable PHA-2 portable headphone amp/DAC - Page 30

post #436 of 567

What do you mean by channel imbalance?

I don't aware any problem of mine.

post #437 of 567
Quote:
Originally Posted by JHern View Post
 

Bummer to hear about the channel imbalance, was going to pick up one of these in the near future…but this is the biggest pet peeve of mine in the entire world, Sony just lost a customer.

 

I don't have channel imbalance either.... bit of a misnomer in truth. 

post #438 of 567

No imbalance here... And yesterday listened pretty much all day... 

post #439 of 567

Try playing a mono track then start from 0 volume and slowly turn past the 9 o'clock position.

As you crank up and down, you'll notice the change in balance happening when it hits below 9 o'clock. 

Anything over 9 o'clock is fine.


Edited by delancyst - 2/28/14 at 5:42am
post #440 of 567
Quote:
Originally Posted by delancyst View Post
 

Try playing a mono track then start from 0 volume and slowly turn past the 9 o'clock position.

As you crank up and down, you'll notice the change in balance happening when it hits below 9 o'clock. 

Anything over 9 o'clock is fine.

Lowest volume position (up and down) using the following mono files:

 

http://www.mediacollege.com/audio/tone/download/

 

Using my XBA-H3, DAC connected to the PC. No perceptible balance problems.

post #441 of 567
Quote:
Originally Posted by JHern View Post
 

Bummer to hear about the channel imbalance, was going to pick up one of these in the near future…but this is the biggest pet peeve of mine in the entire world, Sony just lost a customer.


I hear you. This is a huge pet peeve of mine as well, and reminds me of cheap old AM radios as a kid. You expect higher quality if you are spending this much on a product.

 

... but on the other side of that: In a real world scenario with the PHA-2, when do you listen to music or anything at that low of a volume? For the PHA-2 the volume imbalance happens at 9 o'clock... but even with my iphone 4S turned up to 15/16, I still need to turn up the volume on the PHA-2 to at least 10:30 or 11. Where the imbalance happens is moot to when you actually listen to music.

post #442 of 567
Quote:
Originally Posted by fkrieger View Post
 


I hear you. This is a huge pet peeve of mine as well, and reminds me of cheap old AM radios as a kid. You expect higher quality if you are spending this much on a product.

 

... but on the other side of that: In a real world scenario with the PHA-2, when do you listen to music or anything at that low of a volume? For the PHA-2 the volume imbalance happens at 9 o'clock... but even with my iphone 4S turned up to 15/16, I still need to turn up the volume on the PHA-2 to at least 10:30 or 11. Where the imbalance happens is moot to when you actually listen to music.


Note that in my test I used both winamp plus stereo tool DSP just to go as far as I could go in amplitude, it get's audible at the lowest level in the amp, still, failed to perceive any balance difference.

post #443 of 567
Quote:
Originally Posted by zilch0md View Post
 

 

Yes, I regret not looking into that point when that page with detailed specs was still available.  I have no idea what the output impedance is for the PHA-2.  

 

I don't even know for sure if output impedance was included in that table of specs from which I only quoted output power.

 

Today, I've looked for specs, but like you, can't find anything on output impedance.

 

Mike

PHA-1 was around 7-10ohms

http://monoadc.blog64.fc2.com/blog-entry-99.html

post #444 of 567

Anyone have a Sony PHA-2 with recent firmware and touch 5G or iphone5?

 

I want to see screenshots of it playing a 24/96 file using flacplayer app or Onkyo HF app.

 

Thanks.

post #445 of 567

The PHA-2 is firmware upgradable? I didn't knew that...

post #446 of 567
Sorry, forgive my incorrect assumption regarding firmware.
post #447 of 567

Is the PHA-2 japan only, or is it expected to arrive in the uk at some stage?

 

Cant seem to find any UK announcements of coming availability. 

 

Thanks in advance

post #448 of 567

as far as I know it is getting released in the USA this month apparently, maybe Europe after?

 

I find it hard to believe it won't be released over here at some point... it has implementation for Walkman's via a separate dedicated lead so would make sense to any other manufacturer but we're talking Sony.

post #449 of 567
Quote:
Originally Posted by OK-Guy View Post
 

as far as I know it is getting released in the USA this month apparently, maybe Europe after?

 

I find it hard to believe it won't be released over here at some point... it has implementation for Walkman's via a separate dedicated lead so would make sense to any other manufacturer but we're talking Sony.

 

Ok great, thanks for the info.

post #450 of 567
yes, PHA2 will be in USA very soon. I've confirmed this with my contact at Sony. PHA1 will stay in the lineup.
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