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KOSS ESP-950 Thread - Page 95

post #1411 of 2688

first attempt at a stax male jack. Came out perfect. Need to buy some

Teflon. machining plexiglass is a pain



post #1412 of 2688
Originally Posted by kevin gilmore View Post




Brilliant!  :beerchug:

post #1413 of 2688

Where'd you get those pins?

post #1414 of 2688

from an idea by chinsettawong.


I trashed 2 x neutrik male gold xlr's.

which makes the piece above about $20 so far

plus the machined cap


they are exactly the correct size, 3/32 inch

Edited by kevin gilmore - 6/23/14 at 4:08am
post #1415 of 2688

So the question becomes where can you source freestanding 3/32" gold pins of the right length so you don't have to go through the expense and effort of buying and pulling apart Neutrik male gold xlrs, which sounds overly expensive, time-consuming and a general pain. Neutrik must be getting them from somewhere. I bet they'd tell you if you ask nicely.

post #1416 of 2688

well these guys


from here



but they cost more than buying the neutrik connectors and they don't have the umbrella flair that keeps them

in the hole. The pins come out in seconds with an appropriately drilled piece of aluminum and a small bench



Its not about cost, its about having the perfect connector.

you should know that this is the way I do things.

Edited by kevin gilmore - 6/23/14 at 2:04pm
post #1417 of 2688

Is 2.5 mm too large?


Also, do you have the CAD drawing of the pin placements still?  I can't find it anywhere.

Edited by n3rdling - 6/23/14 at 8:00pm
post #1418 of 2688

Well Kevin, I get that you're not concerned about cost, and the Ladd pins don't work right so they're not a practical option. And it still must be a pain to pull the Neutriks apart. What about my second approach, asking Neutrik where they source their pins? It's not like you're competing with them--you're clearly not planning on mass producing XLRs.

post #1419 of 2688

this is the female jack, but the numbers are the same (in inches)



2.5mm is too large in diameter.

post #1420 of 2688

Anybody interested in a pair of ESP-950s with maybe 100 hours on them and no issues last time I tried them (7 months ago) for $600 shipped anywhere in the continental US should PM me.  I like them, but prefer my LCDs, and need the cash to feed my other habit -- orchard equipment.  Any of you who think this hobby is expensive should be thankful you're not into Italian orchard equipment... (why yes, I DO need a $60,000 tractor...I think... ).  The Koss won't buy me much more than a small part of a side-shifting mower or airblast sprayer, but every little bit will help at this point.


I'll be putting a post up in the FS section over the weekend, but figured I'd give the aficionados a shot first.

post #1421 of 2688

Could some help me with RMA ?


I write mail to Koss USA but I didn't receive any mail :(

post #1422 of 2688

This is copied from the Koss website. Follow these instructions and you will nave no problem. I have been through the process and it's painless. The whole service process took about 2 to 3 weeks.


After you mail everything, give them a PHONE CALL and verify that your part has been received:




Warranty or Repair within the United States

If you have not done so, please register your stereophone by clicking here.

Once you have completed registration, you may send your warranty items to our Corporation and we will repair or replace them in accordance Limited Warranty.

Our address is:
Koss Corporation
Attn: Warranty Return
4129 N. Port Washington Avenue
Milwaukee, WI 53212
You may also visit our Milwaukee location if you are from the area.

$9.00 for the return shipping and handling per stereophone (money order, cashier's check, or personal check: payable to Koss Stereophones), a note describing the failure, as well as your contact information: name, return shipping address, phone number and email.

We recommend that you ship your items to Koss so your shipment is trackable. Please keep your tracking information on file. We will ship out warranty replacements within 72 hours of the product being processed via standard US mail or via UPS. Please allow 10-14 days for shipment delivery.
If you would like to check the status of your warranty, please call Koss Consumer Sales at 1-800-USA-KOSS.



post #1423 of 2688

But first I want to ask them few questions ;)

post #1424 of 2688

I just got my Koss 950's back and they look like they're brand new. They did some reconditioning and changed the serial number. These babys sound pretty awesome, even with the stock amp. I've finally found a replacement for my beloved AKG K340's!

post #1425 of 2688

A word about the infamous squeal. I've had my 950s since 1992, and the squeal has finally reared its ugly head for the first time in all those years. There have been some suggestions here that it occurs due to dust inside the mechanism. So I took a can of Dust-Off compressed air and sprayed it into the perfed metal that sits on the outside of the ear cups. Sure enough, the squeal went away, headphones sound just like they did before.

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