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The "non-Grado" Driver Grado Thread - Page 10

post #136 of 582
Interesting information! Thanks for going out on the limb and acquiring and testing all those drivers. Wish they were better...the search continues.

In a related story, the AKG Chinese driver (see link pg1) is dead. I was contacted by the company and my drivers never shipped. They said they contained magnets and were currently under embargo and could not be shipped which is total BS in my opinion. If you look at the site they have now made them unavailable to order. At least my refund has already come through...

Sorry guys, I tried! mad.gif
post #137 of 582

 

I've posted this everywhere else so why not here?! 

 

SennGrados rev 1. :)

 

In the top picture you can see the inside of the prototype reject cups from Vibro. Hand to sand the housing of the PX100 drivers so they'd fit. After listening the gaps between the three prongs were leaking too much, so I filled them with foam tape. Much better! 

 

Quite proud of these RS1 look-a-likes. Had to shape, sand, drill, stain, and coat the mahogany cups myself and they turned out very nicely. 

post #138 of 582
Thread Starter 
Quote:
Originally Posted by JoeDoe View Post

 

SennGrados rev 1. :)

 

 

Joe,

 

Nicely done!  I see the cups from time-to-time on ebay, but am unsure of taking the plunge as it could be a "grab bag" of a purchase where one doesn't know what they'd get or even how close the two would match - based on my understanding,

 

Thanks for the picture of the drivers and how they sit into the cup, as this is something I wanted to mention to the group, too. I've preferred to have the drivers slightly recessed as you have done, when compared to a flush mount.  The Sennheiser grills that cover the driver, protrude a slight amount. On my tests with the drivers mounted flush, it appears the pads squish down a bit and one's ears can nearly rest on the driver and make for some discomfort on the ears.  I've used both the true reverse quarter modded Sennheiser pads, as well as the G-Cush and L-Cush by Ear Zonk and with all three, I've noted somewhat of a discomfort until the driver was slightly recessed.

 

 

Levictus,

 

Thanks for your update, too.  The idea of an AKG driver was exciting as I had suspected it very well could have been designed for their open / semi-open headphones and might make for a great pairing with the wooden Grado cups.

 

The search continues ...

 

 

Edit: I wish I knew more about "doping" a driver as I'd go ahead and try the process on some of the drivers I have just to see what the results would be. I guess I could mess with them a bit and apply some materials to the cone and try it out.  Also, I have some spare magnets and possibly, if I could apply them with the right polar positioning, those results would be interesting to see too.  But, that's just some random ramblings at this point in time.


Edited by wje - 2/6/14 at 6:06pm
post #139 of 582
Clones looks nice. I would like some wood cups that reasembles RS1 but I cant find anyone who would make them for the price I can pay. Those unfinished Vibro cups are temptiing, but I'm affraid of their quality as it is hit or miss.
Edited by Rauliki - 2/6/14 at 11:29pm
post #140 of 582
Quote:
Originally Posted by wje View Post
 

 

This is something I wanted to mention to the group, too. I've preferred to have the drivers slightly recessed as you have done, when compared to a flush mount.  The Sennheiser grills that cover the driver, protrude a slight amount. On my tests with the drivers mounted flush, it appears the pads squish down a bit and one's ears can nearly rest on the driver and make for some discomfort on the ears.  I've used both the true reverse quarter modded Sennheiser pads, as well as the G-Cush and L-Cush by Ear Zonk and with all three, I've noted somewhat of a discomfort until the driver was slightly recessed.

 

 

 

 

Yes, I've had a problem with my ears touching the driver and causing discomfort, last night I put the drivers in new cups and recessed them a bit but might have to recess them a bit more.

post #141 of 582

I didn't bother doing a write up originally because I was pretty disappointed with the SennGrados.  I found them to be overly dark and muddy, which are two of the worst qualities in an HP for me.  I had dismissed the prospect and was getting ready to order a pair of turbulent drivers to put these parts to use, when I noticed a small patch of left over dynamat in my desk drawer.  On a whim, I put a pea sized drop on the back of each driver.

 

WOW.  I wish I had listened to these right before putting the dynamat on for better comparison.  What I'm hearing now is entirely different than my initial impression.  The muddiness is gone, and there is a clarity that definitely wasn't there before.  These things actually sound pretty respectable now.

 

If anyone has put together the SennGrados, stick a little blob of damping material on the back of the drivers and report back.  I think this is the missing piece of the puzzle.

 

post #142 of 582
Basically a pair of woodied Urbanears Platan:



Pads are a pair of Grado L-Cush over a pair of the leatherette donut pads that come on the Platan:



Added one layer of cotton at the ends of the cups.

Bass monsters they are not, but I am pleasantly surprised by the level of detail...listening to ALAC out of an iPod Touch first gen (Damon Albarn's Kinshasa One Two album).
Edited by fleasbaby - 2/9/14 at 10:26am
post #143 of 582
Thread Starter 
Quote:
Originally Posted by fleasbaby View Post

Basically a pair of woodied Urbanears Platan:


Pads are a pair of Grado L-Cush over a pair of the leatherette donut pads that come on the Platan:



Added one layer of cotton at the ends of the cups.

Bass monsters they are not, but I am pleasantly surprised by the level of detail...listening to ALAC out of an iPod Touch first gen (Damon Albarn's Kinshasa One Two album).

 

That's an excellent idea!  With most of Grado concotions, It's the center area where my ears experience the most fatigue. 

post #144 of 582

...and here are the closed Paduaks I received yesterday. I posted them in the StratoKOSSTer thread, but that's been quiet for some time...I have some KSC75 drivers in them now, on a Grado SR60 cable. Going to be trying some Platan drivers in there since I got some decent results on the other almost-closed cups I have. Also going to pick up some PX100 ii at some point this month and try them...

 

 

Need leather pads. The little donuts just don't cut it, so I need to start checking out other options...they are acceptable with the L-Cush, but that's not what we're trying for here is it now? :)

post #145 of 582

 

Does anybody know if the px200ii share the same px100ii driver? I actually have a pxc-250ii (noise cancelling headphones) I was wondering if I could use them...

Edited by squallkiercosa - 2/11/14 at 11:05am
post #146 of 582
Quote:
Originally Posted by fleasbaby View Post
 

...and here are the closed Paduaks I received yesterday. I posted them in the StratoKOSSTer thread, but that's been quiet for some time...I have some KSC75 drivers in them now, on a Grado SR60 cable. Going to be trying some Platan drivers in there since I got some decent results on the other almost-closed cups I have. Also going to pick up some PX100 ii at some point this month and try them...

 

 

Need leather pads. The little donuts just don't cut it, so I need to start checking out other options...they are acceptable with the L-Cush, but that's not what we're trying for here is it now? :)

I really like those. If you ever get some leather pads let us know where you got them from.

post #147 of 582
Thanks smily_headphones1.gif

I will broadcast loudly when I track them down/make them...it's turning into a Holy Grail experience...
post #148 of 582
Quote:
Originally Posted by squallkiercosa View Post
 

Why not give them a shot?

post #149 of 582
Quote:
Originally Posted by 7keys View Post
 

Why not give them a shot?

That's the plan but the cups are not ready yet. 

post #150 of 582

Hey wje... any status updates on your "OEM" drivers and their performance post-burn in?

Out of the box, it doesn't really sound like any of the drivers you acquired are capable of producing the full audio spectrum... well at least not without some roll off at the ends.

 

I am still eye-ing those 600 ohm drivers.

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