[Tachikoma]

I recently received my 353xBK and L300 LTD. However, I just learned about the importance of letting the energizer charge and keep charging the diaphragm. To that note, I'm wondering if the 353x has always-on bias since I'd rather not have the amp on 24/7

Not according to this https://www.head-fi.org/threads/kal...00-electrostatic.900147/page-17#post-15205924

 

[JimL11]

I recently received my 353xBK and L300 LTD. However, I just learned about the importance of letting the energizer charge and keep charging the diaphragm. To that note, I'm wondering if the 353x has always-on bias since I'd rather not have the amp on 24/7

Not really necessary. This comes from the old Quad ESL, which used a nylon coating on its diaphragms that required hours to charge up, but electrolytic headphone diaphragms charge up within a second or so, and once charged will keep their charge for some time. This could be demonstrated with the old Stax adapter boxes which contained the bias supply and transformers. The bias supply was AC powered, while the music signal went through the transformers, which were driven by speaker amps.You could unplug the adapter box, which removed the bias supply power, but the headphones would continue to play for some time because the diaphragm remained charged for a period of time after the AC power was disconnected.

 

[ahmedie]

I am not sure if you are interested but I heard the new stax amps (srm 700T / 700S) while technically they are not much improvement over older designs, they were clearly step up from 727/700TII and closer to a kgst I heard !! I think they are trying to keep house sound and don't want to go for hyper detailed sound. When direct comparison between 700T and 700TII, I noticed how muddy is 700TII. Tonality wise they were really good and made L700 sings. As for 009 and 007 matching they sounded average ...

 

[ahmedie]

I recently received my 353xBK and L300 LTD. However, I just learned about the importance of letting the energizer charge and keep charging the diaphragm. To that note, I'm wondering if the 353x has always-on bias since I'd rather not have the amp on 24/7

As for L700/L300LE I think this is relative and have being noticed by at least 4 people including me that keeping the amp on for a while does improve sound greatly. Maybe charging diaphragm over time changes material characteristics which in turn makes electrostatic field more uniform over diaphragm surface ?

 

[Tachikoma]

Is it about keeping the amp on, or keeping the headphones charged, though?

 

[Jacques Lolive]

I am not sure if you are interested but I heard the new stax amps (srm 700T / 700S) while technically they are not much improvement over older designs, they were clearly step up from 727/700TII and closer to a kgst I heard !! I think they are trying to keep house sound and don't want to go for hyper detailed sound. When direct comparison between 700T and 700TII, I noticed how muddy is 700TII. Tonality wise they were really good and made L700 sings. As for 009 and 007 matching they sounded average ...

When you talk about 700TII you mean amplifier SRM007tII?

 

[ahmedie]

When you talk about 700TII you mean amplifier SRM007tII?

Yes miss types

 

[Jacques Lolive]

Yes miss types

Thank you this is what i thought. What a pity ! So the new amps are not good with the SR009 and SR007?

 

[Tugbars]

Is it possible to send headphones for repair(to STAX japan) if it's bought second hand and we don't know the dealer which the pair has been bought from?

Is there anyone giving repair services such as cleaning diaphragm etc?

 

[Hubert481]

Only the stax repair centre if the country where the stax was bought will repair it.
No other repair center will do what.
That is law of stax mafia.

i was discussing that several times with the stax company.


Go to a company which has a own repair shop and no original stax shop.

 

[Tugbars]

Yeah. My question is, is there someone who is giving such repairing services?

 

[Whitigir]

Yeah. My question is, is there someone who is giving such repairing services?

Call up Stax dealers, they can do RMA for you ? Just guessing

 

[statfi]

Is it possible to send headphones for repair(to STAX japan) if it's bought second hand and we don't know the dealer which the pair has been bought from?

Is there anyone giving repair services such as cleaning diaphragm etc?

I purchased some earspeakers that I then damaged from Jack Wu <jack@wooaudio.com>. Woo were helpful in getting me in contact with Arale Leung <arale@edifier-international.com> to get them repaired. Good luck.

 

[Tachikoma]

Yeah. My question is, is there someone who is giving such repairing services?

https://www.head-fi.org/threads/electrostatic-headphone-repair-stax-sennheiser-jecklin-float.824712/

 

[Tugbars]

Thanks everyone. The channel imbalance is just 12% but it's worth to have them fixed before it get's worse.