Anyone happen to know that Koss UR-40 driver size? need to know for a possible project.
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The Headphone Driver Pics Thread - Page 14post #196 of 2988/28/11 at 12:30am
Head-Fi's Best Sellerspost #197 of 2988/28/11 at 12:42ampost #198 of 2988/28/11 at 3:32pm
Driver for my favorite headphone, the Koss Pro DJ100 (this is a dead one I blew up on accident)
No, it's not a KSC75 driver Has a ton of similarities to the SR-80 driver except it has only has one vent hole and a hole in the middle of the driver.
The DJ100 driver can fit into the SR-80 shell and vice versa. I haven't tried it though.
Has anyone seen this driver elsewhere? I keep hoping to find a DJ100 clone, but I don't think one exists.post #199 of 2988/28/11 at 9:27pmpost #200 of 2988/28/11 at 10:27pmpost #201 of 2988/29/11 at 9:53ampost #202 of 2988/29/11 at 8:24pmpost #203 of 2988/29/11 at 9:13pm
An in progress project of mine...
ortho SFI 120ohm driver, mounted into the ring gimbal...
of an AKG K240 Sextettpost #204 of 2989/6/11 at 9:51ampost #205 of 2989/7/11 at 6:08pm
more Grados and Alessandro
A very old MS1 driver (middle 90s) that recently died on me, and a new SR80i driver, ignore the solder plasters, these have been into several projects, also ignore all the dust and dirt in the MS1, it hasnt been taken out of the shell in over 4 years and I have no idea how did all that dirt got into the front of the driver:post #206 of 2989/7/11 at 6:31pmQuote:Originally Posted by JamesMcProgger
more Grados and Alessandro
A very old MS1 driver (middle 90s) that recently died on me, and a new SR80i driver, ignore the solder plasters, these have been into several projects, also ignore all the dust and dirt in the MS1, it hasnt been taken out of the shell in over 4 years and I have no idea how did all that dirt got into the front of the driver:
Won't the two drivers sound different now? Or did you get two new drivers?post #207 of 2989/7/11 at 6:40pmpost #208 of 2989/17/11 at 2:11pm
A little update on the first AKG Varimotion driver headphones from the mid 1990s with thicker/stiffer dome for better break-up behaviour.
K301 driver drawing:
K301 driver foam filter:
K301 driver (with plastic acoustic filter cover):
K501 driver:post #209 of 29810/28/11 at 9:57pm
I bought these beyerdynamc DT-990's in a thrift store for 25 euros they were all beat up. Fixed the ear padding and the broken yoke and voila my first serious headphones.
When i opened them up to look at the drivers they where both different anyone know why ?post #210 of 29810/28/11 at 10:40pm
Vintage Superex Clear the big black circle is the speaker as far as I can tell up close
Sansui SS-20 2 way
MCS 8710 LinearDrive ortho
Stax SR-50 closed electret
Edited by nick n - 10/28/11 at 11:46pm
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