[ericj]

I have not, but I would try deoxit before oil

 
Deoxit can sometimes destroy potentiometers. By cleaning the carbon trace right off of them. 
 
CAIG has a different product called FaderLube that doesn't have that problem. 
 
If you have to get into the E/90, you have to take the sticker off the front panel. And you're more or less guaranteed to destroy it, which is why Koss just replaces it when they service an E/90. 

 

[smy1]

So i got my koss and plug my rca to 3.5 mm with my fiio and only my right side play music but left dosent?

Edit oh shoot didnt know it had another volume knob fot left side

 

[buke9]

So i got my koss and plug my rca to 3.5 mm with my fiio and only my right side play music but left dosent?

Swap the sides and see if the right side still plays.

 

[smy1]

Swap the sides and see if the right side still plays.

lol it was because the left side volume knob was at 0
 
didnt know it had 2 volume knobs for right and left

 

[Pana Sonic]

   
Deoxit can sometimes destroy potentiometers. By cleaning the carbon trace right off of them. 
 
CAIG has a different product called FaderLube that doesn't have that problem. 
 
If you have to get into the E/90, you have to take the sticker off the front panel. And you're more or less guaranteed to destroy it, which is why Koss just replaces it when they service an E/90. 

Luckily I don't need to get inside the E/90 unless its the only way to remove the knobs. I've lubricated the Objective2 potentiometer before, so I don't see lubrication being an issue. Guess I'll just try unscrewing the knob screws and pulling them out with rubber gloves.

 

[buke9]

lol it was because the left side volume knob was at 0

didnt know it had 2 volume knobs for right and left

I read about it first so it didn't throw me but if I didn't read about I'm sure I would make the same mistake

 

[obobskivich]

I read about it first so it didn't throw me but if I didn't read about I'm sure I would make the same mistake

I've read about it, and owned them for a few years, and still sometimes do this when I'm not fully yet awake...

 

[smy1]

So i was wondering how would i upgrade the esp950 amp to something better?

 

[buke9]

So i was wondering how would i upgrade the esp950 amp to something better?

You just got them and want a new amp? Spoken like a true Head-Fi'er ; ) You have to change the plug on the extension cable or buy one pre made to use a Stax amp or one made for the Stax connection. Just got a Stax SRM1 MK 2 and it is much better than the E-90 in my opinion.

 

[smy1]

You just got them and want a new amp? Spoken like a true Head-Fi'er ; ) You have to change the plug on the extension cable or buy one pre made to use a Stax amp or one made for the Stax connection. Just got a Stax SRM1 MK 2 and it is much better than the E-90 in my opinion.

I love the esp950s so far but as a head fi'er you need to get the most out of your headphone

 

[buke9]

I love the esp950s so far but as a head fi'er you need to get the most out of your headphone

Completely understand. Haven't had a lot of time on the Stax amp but soundstage is one of the big pluses for the amp so far.

 

[doctorjazz]

I was using a Stax 323b amp, needed an adaptor cable. I liked the sound, but the adaptor fell apart, so UM back you the stock amp. I thought it gave bass more body.

 

[obobskivich]

If I remember correctly, sending the headphones back to Koss with non-standard termination is one of the few things that can kill the warranty. Better to build/buy an adapter.

 

[ardgedee]

There should be an extension cable packed with the ESP-950. If not, you can order one from Koss cheap-ish. Hack that up for your adaptor.

 

[doctorjazz]

Mine was an extension I bought with the adaptor. Was nice while it lasted...