Head-Fi.org › Forums › Equipment Forums › Portable Headphones, Earphones and In-Ear Monitors › Best clip-ons: Yuin G1A, ATH-EW9, KSC-35km, modded KSC-35, Yuin G2A, MDR-Q68LW, DIY Grado clip-ons, KSC-75
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Best clip-ons: Yuin G1A, ATH-EW9, KSC-35km, modded KSC-35, Yuin G2A, MDR-Q68LW, DIY Grado... - Page 10

post #136 of 165
Thread Starter 

Some tea bags are made of nice fabric instead of paper. I used this fabric.

post #137 of 165

ok thank you!

post #138 of 165

I tried to cut a hold at the foam and it end up with disaster~ how do you cut it so nicely round?

post #139 of 165
Thread Starter 

I have a tools - pipes with sharp edges.

post #140 of 165

Well i know i may be off topic but recently discovered this review of the yuins and by the pictures the drivers look a lot like the ksc-35, porta or sporta. They have the same attachment system with clips aparently a titanium diaphragm, spikes for the foams and the same front cover. Is yuin using parts from koss o some kind of license?

 

http://www.techpowerup.com/reviews/Head-Direct/Yuin/G1/2.html


Edited by XgergoX - 8/6/10 at 4:27pm
post #141 of 165
Thread Starter 

I doubt they need a license. Koss PortaPro was released in 1984, so likely any Koss patents are outdated.

 

"Most patents have a lifespan of 20 years... Design patents have a lifespan of only 14 years." - http://www.ehow.com/facts_5697495_lifespan-patent_.html

post #142 of 165

So basically we may have a tuned or improved Koss driver? May be a properly modded 35 like yours is close or on par with the Yuin with the plate. Koss could "take" some ideas from Yuin and develope a new design.

post #143 of 165

It doesn't seem like Koss has done any real in-house engineering work in quite a number of years now sadly.  Given what happened to them recently I doubt that will change now.

post #144 of 165
Thread Starter 

I hope Koss will turn to the best. Yes, they did not unleash PortaPro driver potential, like Yuin did with their design. There are some good signs of progress though, like KDE250, which I am about to review. Here is a teasing pic:

 

KDE250_1.jpg?OpenElement

I am burning-in it hardly now, so review will come up in 3 weeks, no earlier. Straight out of the box, it delivers king-sized while pretty accurate bass, nice clarity and big soundstage with good imaging capabilities. It sounds really big, beating  many full-sized cans.

post #145 of 165

Is that an earbud?  Not and IEM?  Looks quite intriguing.  How much are they running, or have the hit the market yet?  Looking forward to reading the review.

post #146 of 165


 

Quote:
Originally Posted by kostalex View Post

I hope Koss will turn to the best. Yes, they did not unleash PortaPro driver potential, like Yuin did with their design. There are some good signs of progress though, like KDE250, which I am about to review. Here is a teasing pic:

 

KDE250_1.jpg?OpenElement

I am burning-in it hardly now, so review will come up in 3 weeks, no earlier. Straight out of the box, it delivers king-sized while pretty accurate bass, nice clarity and big soundstage with good imaging capabilities. It sounds really big, beating  many full-sized cans.

I`m waiting for the review. Koss is one of the few brands that i can buy locally, actually the only good one. I hope Koss unleash the full potential of the porta driver i mean they already have the main part. May be they should develope a new enclosure and tune the driver accordingly.

post #147 of 165

I wonder if it it would be possible for you to add a pic of these on your head.  I am so curios to see how these fit given the metal, non bendable arms.  They look like you would be putting a pair of glasses on. 

post #148 of 165

Awesome reviews, very much appreciated. I also prefer clips ons as they are far more stable compared to earbuds (unless i loop them around my ear).

post #149 of 165
Thread Starter 

 

Off-topic: Welcome read my new review - RE-Zero vs RE0 - SS vs tubes.

post #150 of 165

 

Kostalex, thank you for your reviews-so helpful.  In your opinion would the pico slim be enough amp for the G1A or the PK1?  I ask because as you likely know the slim is generally considered an IEM amp and is less powerful than a pico.  Thanks in advance.


Edited by mtntrance - 10/16/10 at 2:42am
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Head-Fi.org › Forums › Equipment Forums › Portable Headphones, Earphones and In-Ear Monitors › Best clip-ons: Yuin G1A, ATH-EW9, KSC-35km, modded KSC-35, Yuin G2A, MDR-Q68LW, DIY Grado clip-ons, KSC-75