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post #286 of 620

The SRM252 isn't a bad amp at all.  :wink_face:

post #287 of 620
Quote:
Originally Posted by realmassy View Post


I'm pleased to confirm your guess was right! The problem is the energiser, no issue with the 252! Which actually doesn't sound all that bad if I'm honest. The 009 are more than enjoyable even driven by this little cheap thing

 

Well, not "happy" that you've got an issue with your amp, but happy your 009's are fine.  Hopefully just at tube or something simple.  Good luck, an enjoy that little guy in the mean time.

post #288 of 620

Yes the 252 and its predecessors are somewhat of a bargain amp wise for the easier to drive Stax's. Sound pretty damn good to in relation to its price and much underrated by some who think you have to pay mega bucks for something respectable.

If i remember correctly Spritzer modded one of the earlier version to accept mini xlr balanced inputs :D

 

Quote:

Originally Posted by realmassy View Post


I'm pleased to confirm your guess was right! The problem is the energiser, no issue with the 252! Which actually doesn't sound all that bad if I'm honest. The 009 are more than enjoyable even driven by this little cheap thing
post #289 of 620

Well, I've found out my 009s have an imbalance. The left channel is about 2dB quieter than the right. Thankfully I've been able to adjust for this on my DAC but I wouldn't call that a permanent solution. The serial number is 2275.

 

Anything I should try first to see if the imbalance goes away before shipping them back to PJ?

post #290 of 620

Have you been able to confirm that it's the headphone by trying other headphones with your amp, or another amp with these headphones?

 

Unplug the headphones and short the plug with your fingers to discharge them. Check and see if they are still unbalanced.

 

If you haven't already let them play for a very long time (like over a week) without interruption at decent volume levels.  

 

That's the easy stuff you can try.  

 

Many pairs have been sent to STAX and returned with no "repair" made, but the imbalance gone... seems a plane flight is also a good fix, but not very practical!

post #291 of 620
Not cheap either, if you have to fly to Japan :-)
post #292 of 620

Does 2 db difference mean imbalance?

post #293 of 620

A bit of an update: I've remeasured each driver using a different method and the imbalance seems to have gone. Either these or my earlier measurements were incorrect (certainly possible) or the imbalance had cured itself since.

 

Maybe I'm going slightly mad.


Edited by loligagger - 12/22/13 at 9:06pm
post #294 of 620
It's good to know that everything is OK! Especially given the PITA to ship them back in Japan
post #295 of 620

I purchased the 009s a good few months back but have only managed to set them up now (long story). They are better than any others I have tried and that includes the SR-007 mk1, HD800, LCD 2&3. 

 

I am getting intermittent imbalance issues when I first use them where the right side is louder. Most of the time this seems to go away by letting the headphones play for a few minutes at moderate volume. Definitely a little worried. Has anyone else had this issue or can explain why it sometimes starts off like this and then seems perfectly balanced?

post #296 of 620

lol in my case (where i had to send it back for repairs) it was the other way around

 

the imbalance got worse the longer it played

 

what amp are you using?

post #297 of 620
Quote:
Originally Posted by Nitori View Post
 

lol in my case (where i had to send it back for repairs) it was the other way around

 

the imbalance got worse the longer it played

 

what amp are you using?

 

The SRM-717. The way it happened with you seems like the pattern with others. I know they charge so much to fix outside of warranty and I still have over 6 months left. Don't want to take any chances but if I do send it back and due to the intermittent nature of the problem they make not test extensively and send them back. It's only been a couple of days so will keep a very close eye.

 

I called the reseller (Elusive Disc) and informed them of the problem but said I will monitor for a little while. Regardless, they are contacting the Stax rep to inform him and get the process started.


Edited by Clsmooth391 - 1/17/14 at 8:59am
post #298 of 620
Do you have any other headphones to test with that amp? I've had a 717 that acted like that in the past, an imbalance when starting. Shortly after the other channel would come up and all is good. Obviously it acted the same with any headphones, not only the 009.
Quote:
Originally Posted by Clsmooth391 View Post

The SRM-717. The way it happened with you seems like the pattern with others. I know they charge so much to fix outside of warranty and I still have over 6 months left. Don't want to take any chances but if I do send it back and due to the intermittent nature of the problem they make not test extensively and send them back. It's only been a couple of days so will keep a very close eye.
post #299 of 620
Quote:
Originally Posted by shipsupt View Post

Do you have any other headphones to test with that amp? I've had a 717 that acted like that in the past, an imbalance when starting. Shortly after the other channel would come up and all is good. Obviously it acted the same with any headphones, not only the 009.

 

Unfortunately not. I just turned them on they were fine. I tried to re-create the problem and took the plug out. I discharged the pins and the imbalance came back. Let it play for 5 minutes and the problem has gone away again. 

post #300 of 620

I'm about 45 minutes west of Toronto if that helps. I have a SRM-1 you could test with.

 

If your in the Toronto area, maybe someone else could help you out by letting you plug your phones into their amp.

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