deepak Posted September 14, 2008 Author Report Share Posted September 14, 2008 I successfully completed the recable with the Stax extension cable. Let's just say that out the KGSS, it's a totally different world than with the E/90. I won't do much listening tonight because I'm tired and will go to sleep soon, but I'll try to put some impressions tomorrow. Unfortunately, I think some dust infiltrated the right driver and I get an annoying squeal, I'll also have to investigate that tomorrow. Damn detailed impressions please A temp fix for the squeal (if it's just dust) is gently tapping on the housing. This worked with my old pair I sent in to Koss. Quote Link to comment Share on other sites More sharing options...
Tachikoma Posted September 14, 2008 Report Share Posted September 14, 2008 My temp fix for squealing is to press the headphones against my ear... and I have no idea why it works, but it does (with vintage round-driver stax) Quote Link to comment Share on other sites More sharing options...
GPH Posted September 14, 2008 Report Share Posted September 14, 2008 Might not be dust but the terminals on the driver arcing. If it is indeed dust then taking the driver apart and blowing gently on the diaphragm and stators (remove any residual charge first by shorting the Stax plug) should get rid of the particle. I just opened the cup and don't see any dust. I tried tapping on the cup and shaking it gently, but the squeal is still there. If the problem is due to arcing between the terminals, is there any way to fix the problem by myself? Quote Link to comment Share on other sites More sharing options...
Tachikoma Posted September 14, 2008 Report Share Posted September 14, 2008 The dust isn't large enough to be seen by the naked eye, most of the time. Quote Link to comment Share on other sites More sharing options...
spritzer Posted September 14, 2008 Report Share Posted September 14, 2008 I just opened the cup and don't see any dust. I tried tapping on the cup and shaking it gently, but the squeal is still there. If the problem is due to arcing between the terminals, is there any way to fix the problem by myself? The gap between the stator and diaphragm is only 0.5mm and the dust can be much smaller then the to cause a nasty squeal. It is also on the inside of the driver so you have to take it apart completely. One question though... when you were soldering the wires, did you have the drivers completely covered so no excess flux could burn its way through it? Quote Link to comment Share on other sites More sharing options...
GPH Posted September 14, 2008 Report Share Posted September 14, 2008 The gap between the stator and diaphragm is only 0.5mm and the dust can be much smaller then the to cause a nasty squeal. It is also on the inside of the driver so you have to take it apart completely. One question though... when you were soldering the wires, did you have the drivers completely covered so no excess flux could burn its way through it? Yes, the drivers were covered. Quote Link to comment Share on other sites More sharing options...
spritzer Posted September 14, 2008 Report Share Posted September 14, 2008 That removes one nasty possibility. Didn't you just split open the housing and replace the cable or did you remove the drivers as well? I don't see how dust could infiltrate it if you just opened up the housing. Quote Link to comment Share on other sites More sharing options...
GPH Posted September 14, 2008 Report Share Posted September 14, 2008 That removes one nasty possibility. Didn't you just split open the housing and replace the cable or did you remove the drivers as well? I don't see how dust could infiltrate it if you just opened up the housing. Yes, I just opened the housing. One thing though that I didn't mention, the squeal was there when I first received the pair, but very very small and not permanent. Now, the squeal is there all the time on the right driver. I might just send it to Koss and get a brand new pair. Quote Link to comment Share on other sites More sharing options...
deepak Posted September 14, 2008 Author Report Share Posted September 14, 2008 Yes, I just opened the housing. One thing though that I didn't mention, the squeal was there when I first received the pair, but very very small and not permanent. Now, the squeal is there all the time on the right driver. I might just send it to Koss and get a brand new pair. This was the same problem with my first pair. It manifested itself maybe 20-30% of the time music was playing. No squeal whatsoever now. Anyway this was in a message Marc sent me (I hope you don't mind me posting this ) good luck with the squeal. It can be fixed, the problem is just a poor arrangement of the leads going to the stators. You'll get the new 2007 drivers like I did though Quote Link to comment Share on other sites More sharing options...
spritzer Posted September 14, 2008 Report Share Posted September 14, 2008 i.e. arcing between the wires. Try to arrange the wires for maximum separation and even insulate the terminals or just remove the cable and send the phones to Koss. Quote Link to comment Share on other sites More sharing options...
GPH Posted September 14, 2008 Report Share Posted September 14, 2008 i.e. arcing between the wires. Try to arrange the wires for maximum separation and even insulate the terminals or just remove the cable and send the phones to Koss. You're saying I can send the phones to Koss without any cable and they'll replace them no questions asked? Quote Link to comment Share on other sites More sharing options...
spritzer Posted September 14, 2008 Report Share Posted September 14, 2008 You're saying I can send the phones to Koss without any cable and they'll replace them no questions asked? That's what Marc said they do a few posts back. Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 Where can I get a female esp950 plug? Quote Link to comment Share on other sites More sharing options...
grawk Posted October 15, 2008 Report Share Posted October 15, 2008 attached to an esp950 extension cable Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 attached to an esp950 extension cable yeah but from a website like allied electronics Quote Link to comment Share on other sites More sharing options...
Salt Peanuts Posted October 15, 2008 Report Share Posted October 15, 2008 Where can I get a female esp950 plug? Cannibalize the amp? Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 Cannibalize the amp? Without actually destroying the amplifier either. I'm trying to make a esp950 to stax pro adapter and I found the Stax connector I need, but I can't seem to find an esp950 connector. Unfortunately, I don't feel like spending $150 just to get an adapter from APS so I rather just make one myself. Quote Link to comment Share on other sites More sharing options...
grawk Posted October 15, 2008 Report Share Posted October 15, 2008 You could have a connector made for you, I suppose. Quote Link to comment Share on other sites More sharing options...
Voltron Posted October 15, 2008 Report Share Posted October 15, 2008 I enjoyed the 950 out of my 007t this weekend, even though I didn't have time for detailed listening. It is pretty forward for a 'stat but that was also in part because it was in comparison to the Sigma normal bias model I was checking out too. To my ears, the Sigma sounded under-powered and a bit diffuse in the mid-range. The vocals were set back in the mix and were too soft. the 950 has a lot of bass, also. I am going to try to borrow these off JP before he flips them. Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 You could have a connector made for you, I suppose. I suppose so too. I know some people that posted in this thread used this kind of adapter so I am inclined to see what they used. Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 I enjoyed the 950 out of my 007t this weekend, even though I didn't have time for detailed listening. It is pretty forward for a 'stat but that was also in part because it was in comparison to the Sigma normal bias model I was checking out too. To my ears, the Sigma sounded under-powered and a bit diffuse in the mid-range. The vocals were set back in the mix and were too soft. the 950 has a lot of bass, also. I am going to try to borrow these off JP before he flips them. I have a good feeling I'm going to like the ESP950. Now, how did you magically use your ESP950 with your 007t? If you built this cable, where did you get the parts? If you bought it from somebody, whom did you buy it from? Quote Link to comment Share on other sites More sharing options...
deepak Posted October 15, 2008 Author Report Share Posted October 15, 2008 I have a good feeling I'm going to like the ESP950. Now, how did you magically use your ESP950 with your 007t? If you built this cable, where did you get the parts? If you bought it from somebody, whom did you buy it from? Most people in this thread either: 1. reterminated a Koss extension cable with an OEM 5 pin connector 2. recabled the headphones with a Stax cable 3. bought the APS adapter Why don't you want to do number 1 again? A spare extension cable from Koss is under $15. Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 Most people in this thread either: 1. reterminated a Koss extension cable with an OEM 5 pin connector 2. recabled the headphones with a Stax cable 3. bought the APS adapter Why don't you want to do number 1 again? A spare extension cable from Koss is under $15. Good you mentioned this. I had no idea I could get this cable from Koss. I believe I have everything I need now. Thank you guys very much. Quote Link to comment Share on other sites More sharing options...
grawk Posted October 15, 2008 Report Share Posted October 15, 2008 I thought the big joe + k1000 combination was the best possible headphone setup ever? Why did you sell it? Quote Link to comment Share on other sites More sharing options...
Guest troymadison Posted October 15, 2008 Report Share Posted October 15, 2008 I thought the big joe + k1000 combination was the best possible headphone setup ever? Why did you sell it? I loved it until I listened to my MB Quart QP55x and I stopped using the AKG K1000 after that. Things change I guess. I still think they are the best headphone I've ever listened to for some particular genres. I do miss them and if they ever do come back in production, I'll buy it again maybe. Quote Link to comment Share on other sites More sharing options...
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