[spritzer]

Stax has one model like that too, the SR-2. Officially it never existed but I have at least one review of it.

 

[ri_toast]

esp8s, that's pretty interesting. i have the 9s, if you look at my older posts theres a tear down/rebuild on the koss foam should you find a ground problem. you'll know when you touch the hp frame and they hum. i keep mine on a hp stand right next to the stax and still enjoy them on occasion. i often consider using them to fund a new purchase then think i'd miss them.
nice find! i'd like to hear/read your impressions.

 

[dub]

That's why I was asking…

 

[dub]

Just received it: it's really an ESP8 - manual shows a 1869 © (and in it you can find a measurement of each can — slighlty différent from each other)

Just plug it on my main amplifier: you have to turn it high to have something but it doesn't sound bad (maybe right canal a little weak?)

I'll try it asap

 

[Spasticteapot]

Just bought some ESP950s. They're rather nice headphones, but they're just not enough of an improvement on my DT880s to justify the cost.

Is the HE90 to blame, or do I need to look at some proper Stax before I see a real upgrade to my current cans?

 

[ri_toast]

Koss Electrostatic Line Overview - Wikiphonia

here's an article you might find interesting dub. i assume this phone can leach (draw) power form the amplifier as well as has some power of it's own. my 9's sound very different when run in the ac mode. i'm not sure if the eight has an ac mode, i saw in your pictures that there is a light on your energiser. i'm sure the author of the wiki would be interested; probally a member here.
hope you are enjoying them, closed stats are pretty rare!

 

[dub]

Thanks for this article — in fact I'm pretty shure this ESP8 is not running well:

I can hear some little "scratch" from times to times and the right canal is to low from at least 4db — I can use it but after having corrected the levels and with the amp turned at half: this way it sounds pretty well (except some pretty scratchs), something close to my AKG K340 I think

I'll have to send it to the headphone's doctor (I'll try to find one in january…)

Maybe I'll decide to get some ESP950 since the taste of the 8 seems to be good

 

[Duggeh]

Quote:

Originally Posted by spritzer /img/forum/go_quote.gif Stax has one model like that too, the SR-2. Officially it never existed but I have at least one review of it.

Did you ever find an SR-2? Did Bob buy the SR-1?

 

[spritzer]

Never found a SR-2 except for that one on ebay years ago. Bob did buy the SR-1 but it is still here, waiting for him to come home again. Might just buy it back since there might be a little project involving the SR-1 soon...

 

[M3NTAL]

Question:

With heavier hitting kick drums or electronic kicks at higher volume - the drivers make a noise that I would call "leaves rustling in the wind"... Is this a fault of the amplifier control at this volume or is the membrane rubbing on something internally or going beyond its limit?

If an amplifier upgrade or modification on the headphone itself cannot cure it, I don't see any reason to keeps these if I can't "rock" with them.

 

[edstrelow]

Quote:

Originally Posted by ri_toast /img/forum/go_quote.gif esp8s, that's pretty interesting. i have the 9s, if you look at my older posts theres a tear down/rebuild on the koss foam should you find a ground problem. you'll know when you touch the hp frame and they hum. i keep mine on a hp stand right next to the stax and still enjoy them on occasion. i often consider using them to fund a new purchase then think i'd miss them. nice find! i'd like to hear/read your impressions.

Yes I agree here. I hung onto my ESP9's and ESP6's even though I sold the ESP950. The closed cup design makes them useful from time to time. For a while I have been thinking that I preferred the sound of the ESP6 versus the ESP9 but after a recent upgrade of DAC's the 9 seems to have scaled up well and I appreciate it more.

One day I will get back to trying to run the 9's from a Stax amp.

 

[mobbaddict]

Just curious, is there any frequency response graph available for the 950?
I've read many reviews/feedbacks and from my understanding it has a midbass and an upper mid peak, but a graph would give me a better idea i think.

 

[juanitosan]

Trying to restore an ESP9 & don't have access to a soft copy of the ESP9 Service Manual showing a side cut out like the original ESP6 service manual does. Need to replace the foam. But does anyone know if the stock ESP 9s originally contained foam on the back side - against the cup like the ESP6s did?

Thanks,

Juanitosan

 

[juanitosan]

FYI: just found a softcopy of the ESP/9 maint manual and looks like there never was foam installed on the backside of the driver (inside edge of the CUP). First time I've seen this on any closed can (Stat or Dynamic).

Best,

Juanitosan

 

[spritzer]

Yes. the ESP9 had foam next to the cup which deteriorated quite badly and often corroded the internal components.