SR60-Mod
Jun 27, 2011 at 3:37 PM Post #4,831 of 5,004


Quote:
I've been doing some "behind the scenes" investigating to see if I can determine the cause for the delays in the Grado cups being shipped from Bilavideo.  About the only conclusion that I can come up with is as follows:
 



LOL!
 
Jun 27, 2011 at 3:43 PM Post #4,832 of 5,004
 
 
Unfortunately, this forum doesn't show when a member last visited.  You can only search for their most recent posts.  I would be nice if we could see if he's been "lurking" around here.  I'm quite sure he has been. 
frown.gif

Bila's online right now. We'll see if he posts anything today

 
Jun 27, 2011 at 3:43 PM Post #4,833 of 5,004


Quote:
Sir, I stand corrected. and will sure require your services if I ever have a lost package.
 



No problem.  I'd be glad to assist where needed.  Actually, there are lots of times when my wife has a random question and I have an immediate answer for her.  After a while, the thinks that I'm actually making the stuff up.  The fact is, my brain is like a sponge.  Sometimes, I remember too much of what I shouldn't remember and not enough of what I should remember. 
confused.gif

 
 
Jun 27, 2011 at 4:00 PM Post #4,834 of 5,004

 
Quote:
The fact is, my brain is like a sponge.  Sometimes, I remember too much of what I shouldn't remember and not enough of what I should remember.  
confused.gif
 



hah, mine is the same. I'm incredibly observant and pick up and remember little details about everything, and absorb knowledge on things I do as hobbies like audio and electronics but when it comes to my academic studies for instance, it doesn't wanna stay in there for very long :p
 
Jun 27, 2011 at 4:09 PM Post #4,835 of 5,004

This is why I went to a trade school. normal education bores me to death. 3d Modeling doesnt really seem like I should be getting paid for it.
 
Quote:
 


hah, mine is the same. I'm incredibly observant and pick up and remember little details about everything, and absorb knowledge on things I do as hobbies like audio and electronics but when it comes to my academic studies for instance, it doesn't wanna stay in there for very long :p



 
 
Jun 27, 2011 at 4:52 PM Post #4,836 of 5,004
I agree with what was said. I wish I could have sponged up useful things in school (anything related to engineering) the way I have absorbed (and retained) information about my many hobbies, which sadly aren't as important as my day to day job functions.
 
3D modeling is a lot of fun. I really enjoy the work I have done in Solid Works and Pro Engineer the past few years. Sadly my current job only allows me to do work in AutoCAD, which isn't bad, but isn't nearly the challenge that 3D stuff is for me.
 
Jun 27, 2011 at 5:01 PM Post #4,837 of 5,004


Quote:
Amazing pic Cabillas.
Just got back from a quick trip to Isla Canela and Sevilla as I was in the Algarve working on my tan. The cataplana was very tasty :)

Mind telling the story behind that amp?
And the Alu/madera copas, will this be a design you're offering too?
 




Thanks, tell me if you come back here, i´m glad to wnow  you. The story is a Ra-1 clone buy in ebay and modify with two woods boxes with the similar measures of the original. One box have the alimentation and the other the clone, with mogami cables beetwen and solens capacitors. But bateries clone sounds better, more relaxing in treble, and all.
Original is this: http://cgi.ebay.es/Headphone-amplifier-assembled-nice-housing-Grado-RA-1-/320667881851?pt=LH_DefaultDomain_0&hash=item4aa94b917b
It can be use like previous too, i was using for pc way to amplifier of speakers, but now i have a new Dac maverick, is this: http://cgi.ebay.es/Maverick-Audio-Headphone-Amplifier-DAC-Tube-PreAmp-/330569640118?pt=LH_DefaultDomain_0&hash=item4cf77c68b6
The best way for our grados is a cd+amplifier Ra-1 (clone or not, but with solen capacitors), but i you want to use pc you need a dac for kill noise interferences.
Certainly the aluminium shells were made under order, and them sould out at all.

 
Greetings from Cádiz.
 
Jun 27, 2011 at 5:09 PM Post #4,838 of 5,004
OPENING UP YOUR SR60i
 
Fortunately, the SR60i is one of the easier Grados to open up.  Its cups are held together by rubbery glue that's heat-sensitive.  Softening the glue is simply a matter of steaming the cups till the glue loosens up.  I've ruined a few shells by putting them in boiling water (bad idea).  You don't need a full boil, just steam.  A few minutes of a shallow steam bath will do the trick - at least with the SR60i.
 

 
I filled a teapot with water, got it hot an d steamy and then poured a shallow layer of water into a cake pan.  That's the objective.  Of course, to place my cups in steamy water, I had to first prepare them.
 

 
The minimalist design of the SR60 makes it easy to take apart.  The forks that connect the cups to the headband just clip on - and what clips on can as easily clip off.
 

 
Okay class, quick question: Which side would you want your cups facing when they hit the water?  Top side up or Poseidon Adventure?
 

 
If you said, "Top side up," you should register to vote.  But I digress.  
 

 
Give it just enough time to do its thing and you'll be able to pry your Grados apart WITH YOUR BARE HANDS.  (Chuck Norris can do it without the steam.)  It's a little drippy but it wipes right off, revealing undamped plastic chambers, the magnet plate, those holes we want to pop and some wiring we're going to mess with before this story is over.
 

 


So I've ordered my sapeli cups from cabillas (yay!). I need to liberate the drivers and unsolder/resolder wires into the new cups. I was just curious if anyone could enlighten me as to what that white plastic-y looking substance in between the solders is. Should I avoid it? Any tips on soldering/desoldering these babies? Also, does this steam bath technique work on my 225i's? Or is the adhesive different?


Kojaku
 
Jun 27, 2011 at 5:17 PM Post #4,839 of 5,004
I learned how to use Maya in school. Now I use Multigen/Presagis Creator at work. Its a simple program compared to Maya, but for what we do it does it well.
 
I was working at school to work on film. I moved home after school and took a 3d modeler job for military simulation. 8 years later I'm still doing it. It has grown tiresome over the years. I have to dumb down my modeling for the ancient systems they run the simulators on.

 
Quote:
I agree with what was said. I wish I could have sponged up useful things in school (anything related to engineering) the way I have absorbed (and retained) information about my many hobbies, which sadly aren't as important as my day to day job functions.
 
3D modeling is a lot of fun. I really enjoy the work I have done in Solid Works and Pro Engineer the past few years. Sadly my current job only allows me to do work in AutoCAD, which isn't bad, but isn't nearly the challenge that 3D stuff is for me.



 
 
Jun 27, 2011 at 7:24 PM Post #4,841 of 5,004


Quote:
 I was just curious if anyone could enlighten me as to what that white plastic-y looking substance in between the solders is. Should I avoid it? Any tips on soldering/desoldering these babies?


I believe the white component is some electrical insulating compound.  It will ensure that the solder doesn't run together and short out the connection.  I also believe that the wires (positive / negative) connect from the soldering points and go through that insulated material and down under it where they connect to the voice coil of the driver.  My guesses might be a little bit off on this one - but, I do believe I'm in the ball park as I've worked with a driver that was hosed - so, I had a few moments to gradually take some of the components of the driver apart to review the construction of it.
 
 
Jun 27, 2011 at 8:12 PM Post #4,842 of 5,004


Quote:
No problem.  I'd be glad to assist where needed.  Actually, there are lots of times when my wife has a random question and I have an immediate answer for her.  After a while, the thinks that I'm actually making the stuff up.  The fact is, my brain is like a sponge.  Sometimes, I remember too much of what I shouldn't remember and not enough of what I should remember. 
confused.gif

 



Same here! I did excellent on quiz bowl... got through a considerable amount of my tests in subjects I didn't care for with the power of deductive reasoning. Can't believe how some teachers try to trick you every question and give away the answer... probably 50% of my classes

 
Quote:
 


hah, mine is the same. I'm incredibly observant and pick up and remember little details about everything, and absorb knowledge on things I do as hobbies like audio and electronics but when it comes to my academic studies for instance, it doesn't wanna stay in there for very long :p


I'm the same way... but, the stuff I pick up is science and anatomy, hence my chosen career.. It just kind of sticks and works for me for whatever reason.
 


Quote:
This is why I went to a trade school. normal education bores me to death. 3d Modeling doesnt really seem like I should be getting paid for it.
 


 



 
I got bored with modeling rather quick.. It is fun as a hobby, but I think as soon as I got a paycheck for it I'd hate it with a passion (or a grade, as I found out).. It just sucks away any fun that is to be had.
 
Quote:
So I've ordered my sapeli cups from cabillas (yay!). I need to liberate the drivers and unsolder/resolder wires into the new cups. I was just curious if anyone could enlighten me as to what that white plastic-y looking substance in between the solders is. Should I avoid it? Any tips on soldering/desoldering these babies? Also, does this steam bath technique work on my 225i's? Or is the adhesive different?


Kojaku



Steam technique worked well for me and my sr80i's. I've heard of people melting stuff with a hairdryer, never heard any horror stories with steam. Congrats on the cups, and the soldering isn't too hard. Don't let people scare you.. Just go quick, and you will be fine.

 
 
Jun 27, 2011 at 9:24 PM Post #4,844 of 5,004


Quote:
Got my MS1-i's in the post.
I want to mod them, but my lord WHERE DO I START D:
Already pulled the cloth.. Feel they could use a tad more bass though..


 
4-hole mod. I haven't done this yet, let me know if you like it. I actually liked the white cloth, the bass loosens up over time you get enough later. Just play some drum n' bass at a respectable volume through them when you sleep for a couple nights, you'll hear a difference. You just also learn to listen for it later and not to feel it. It's there but due to the way the cups are the impact doesn't really transfer as well as other cans I feel.
 
Jun 27, 2011 at 9:27 PM Post #4,845 of 5,004
Got my MS1-i's in the post.
I want to mod them, but my lord WHERE DO I START D:
Already pulled the cloth.. Feel they could use a tad more bass though..


I still haven't punched the holes in mine. With all of the talk of changing the number of holes, I'd recommend you do the same if you plan on replacing the shells.

Screen is probably a good place to go if you want to bust the old plastic out. Alessandro is less affected by the grill though without the button, so maybe no change is necessary until you've done other mods. I don't have a MS1 so I can't vouch for it's performance with different mods.

Anyway, considering the money I could be using to go to some of Cabillas' shells has to go to a phono preamp to be able to use the RP1 with my better setup, I'm going to be trying some jatoba again. Has anybody (other than Bila, who isn't here anymore) made some super shorties? 1" single piece? I don't have 1.5" or 2" boards around here much, so it's either 2 piece or shorty.
 

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