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SR60-Mod - Page 63  

post #931 of 5003

Got my Dynamat from a fine upstanding Hifier here. ArmAndHammer hooked me up. Can here a difference and just started the sound comparison. 

 

Thanks AAH

post #932 of 5003


Nice looks like hand turned aluminum, I like the mesh also and the recable job it looks good.

 

 

 

Quote:
Originally Posted by sml1226 View Post



Quote:
Originally Posted by dxps26 View Post

I was sitting at home recovering from a Surgery, so I did this to my SR225's - 

 

http://img193.imageshack.us/i/img0063nm.jpg/

 

P.S - I've been trying to upload pictures to Head-Fi all day. No luck so far - is the site Broken??




img0063nm.jpg
Hmm, works for me just linking direct to it and using the [img]tags with the BB editor. But they look great. What is the cup made of?
post #933 of 5003

I got some Dynamat from A&H and put it on right away...mail came, dynamat on by like 1:30 this afternoon it 10 PM here and I've been listening all day and could easily listen all night...the dynamat takes any type of listener fatigue away...like gone!!!

 

It absolutely tames the highs without a noticeable taming effect, it just works, everything sounds natural and high notes are high notes and not the occasional-Oh that was bright!!!

This is the stuff!!!! 

post #934 of 5003
Quote:
Originally Posted by eclein View Post

dxps26- Those cans are pretty much awesome!!!!!!

 

ArmAndHammer- was kind enough to send me some Dynamat and I stuck a circular piece on the back of each driver.....the effects are subtle but noticeable, it refines the sound, why?, I have no clue...but it works!!!!

 

I may have a secret weapon in my arsenal, there is a little thing called an EVS ground enhancer that hit and became very popular with the folks over on audiocircle....its basically a piece of wire that when attached to the negative terminal on speakers themselves, or the amp itself somehow improves the imaging and soundstage. I have used them on my vintage JBL's with amazing results, you just attach them to the negative terminal and listen, its very dramatic in many instances. So anyway, I have a set that I'm going to attach to each ear cups negative terminal and see what happens. The wires in the earcups are White/Blue and Red/Blue...is the Blue wire the negative??? Here is what they look like:

100_0820.JPG

 

I figured I could tape them on and test the sound first......if these work like they do with speakers...Oh My!!!!


lol. Whatever.

post #935 of 5003

Okay, So got Mozilla working - here's the full story.

 

The Cups were milled from a solid 63mm / 2.5" Round of Aluminium, that is usually found at Mill stores in my area. You may find similar blocks at your friendly local machinist, or he may direct you to where you can get the stuff from. the rounds are sold in bulk as 10' lengths, but was able to find a place where they sold the material by weight, and procured about 10cm / 6" of the round, weighing 1.9 kgs, and costing something like $12.

 

Anybody with tons of cash gathering dust want to try Titanium?

 

IMG_0052.jpg 

 

The Cups were Turned on a simple Lathe by Hand. No CNC mumbo-jumbo required. The machinist was located by a shippie Friend of mine. He knows how to use these tools and got the cups made in a couple of hours. As you can see, the flange is slightly larger, and the overall depth of the chamber is reduced by 3mm. This brings the volume of air held in the chamber down by bit, closer to the old "non - I " 225. This was unintentional, but, when you're sitting in bed trying to get a part milled over the phone, that is what happens. Finishing was done by 320 grit paper.

 

IMG_0058.jpg

  

I have not gathered the cahoneys to extract the drivers from the plastic cages. I want to Get these made either in the metal again, or find some good hardwoods. Mahogany is non-existent at my corner of the world, but I can get Sheesham/Talhi, which is a very hard, dense, and dark wood-so hard, in fact that electric sawblades reportedly get red-hot during cuttings. Or, I could try Burmese or Assamese Teak, which looks wonderful. Tonally, I have no Idea how these will sound. I have not put in the Plastic Shim ring that comes with the Stock SR225i Housing, and I may consider Dampening the interior with Chamois leather, as I had done Earlier. The Driver magnet Plate has got a small piece of Shoe Heel Gel attached to it for vibrational and acoustic Damping, which also prevents the cable from rattling against the driver back.    The Grilles are from the Stock Cups- These might go if I find some nicer looking Substitute in black or copper.

 

IMG_0059.jpg

 

Finally, the Headband is Custom Leather, Dark Brown, wrapped over stiff Cardboard and glued to the Original Vinyl Band on both sides for a Seamless look. I May get the Cups milled down even more, and bring the look Closer to the HF2, but I think I like the One-Off look.

 

IMG_0063.jpg

 

And so - The Sound. That Will have to wait. My eardrums feel like they are about to explode, and my body is just reeling under the constant supply of painkillers and antibiotics. Tonsil Removal should not be This Painful.

 

-dxps26

 

-EDIT-

 

newgrill.jpg

 

Removed the Stock Grilles and put in a Finer, more open Steel mesh. These look the part, don't know if they'll sound better...

 

-dxps26

post #936 of 5003
Thread Starter 

Beautiful work!  Way to take it to the max!

post #937 of 5003

Any update on the Brazillian rosewood, Bill?

post #938 of 5003
Quote:
Originally Posted by KimChee View Post

Any update on the Brazillian rosewood, Bill?

And the croc headbands? :)

 

@dxps26 - Beautiful piece of work. Hope it sounds accordingly o)

post #939 of 5003

So this gentleman from audiocircle, after hearing me spout off about Grado's, had a pair of SR125's that he didn't like so he offered to send them my way for which I am very grateful. The fact that these 125's were due to arrive as backup gave me the motivation to mod the SR60's.

 

These headphones are shrill, harsh in the high end like I'd be put off by them also so I can see why he didn't like them. The bass seems to be more prevalent but the high end is too much, so I jut wanted to say thank you Bill for doing this thread, videos, woodies etc..because right now my modded SR60's sound so much better than these stock 125's. I wanted to hear what type of difference there was, now these are older Grado's, but man are they bright....so anyway BilaGrado's are the way to go for sure!!!!

Thanks Bill!!!!

post #940 of 5003
Thread Starter 

 

Originally Posted by KimChee View Post

Any update on the Brazillian rosewood, Bill?


This stuff is hard to cut.  It's the slowest going of any wood I've used, but I did manage to get something done with a couple of thin rings.

 

Photo on 2011-01-22 at 12.57.jpg

 

The Brazilian rosewood wood could use another three coats of lacquer but I was in a hurry to sand, lacquer and apply.  I was happy that I got some aluminum mesh in the mail.  This stuff is thicker than window screen but still easy to cut with scissors.

 

Photo on 2011-01-22 at 12.58.jpg

 

This is minimal wood.  The drivers on this SR60 are not yet liberated, so the front shell is the stock plastic.  The cabling is also stock.  I've got some Dynamat on the back of the magnet plate and I've stripped away the driver cloth (a good thing, which I could hear while doing so, as I had the iPod running while I was removing the cloth).  Soundwise, it's hard to believe these are the same headphones I started with.  The bass is prominent but tight (I aired out every hole with my ballpoint pen and reamed each hole with the tip of the plug).

 

Photo on 2011-01-22 at 12.58 #2.jpg

 

With all the tweaks combined, it's a very clear and open but dynamic presentation.  I look forward to hearing it with more copper in the cabling - or silver - and with a two-shell to go "full wood" from the driver to a bigger, longer air chamber.  Charlie Mingus's Goodbye Pork Pie Hat reminds me of the HD800, except for the more forward presentation.  You can hear all the little asynchronies in the two saxes, each with its own signature reedy raspiness.  I can hear the valves as the notes are being mechanically produced much like.  On a song like the Beatles' Yesterday, I can tell on what guitar notes the right hand was plucking a little harder than the left hand was depressing the strings for a clear ring.  Kiss's Shock Me sounds crystal clear, rather than muted in that mid-70s recording style.  The bass on Rage Against the Machine's Renegades of Funk is as aggressive as the track was meant to be.  Linda Ronstadt's Heat Wave sounds as sharp, and dynamic, as if it were recorded near enough in time not to severely date me.  Even Frank Sinatra's Moonlight Serenade sounds clear yet commanding in its presence that the strong-bass notes have that church-organ thump and shimmer that grabs you by the backbone.  A little more HD800 soundstage would be nice here but it's a function of the comfies.  When I get the leather pads made, we'll see how far back I can go and still get that wonderful bass.

post #941 of 5003

Dxps26, those look awesome. I wish i had some of the improved cups (I versions) so I could model aluminum after them. I would really like to make something like that in the future. I will have to talk to my friend who is wise in the ways of turning about that.

 

Bila, those new cups look great. Makes me realize I need to laquer my cups, they need a bit of a sheen to them. The finished oak is just too dull for my liking. Any hints what to use?

 

I would post pics, but I still can't get anything to work. The Head-fi image uploader errors every time. And using the traditional [img]imageshack direc link[/img] isn't working for me.

post #942 of 5003
Thread Starter 

 

Originally Posted by eclein View Post

So this gentleman from audiocircle, after hearing me spout off about Grado's, had a pair of SR125's that he didn't like so he offered to send them my way for which I am very grateful. The fact that these 125's were due to arrive as backup gave me the motivation to mod the SR60's.

 

These headphones are shrill, harsh in the high end like I'd be put off by them also so I can see why he didn't like them. The bass seems to be more prevalent but the high end is too much, so I jut wanted to say thank you Bill for doing this thread, videos, woodies etc..because right now my modded SR60's sound so much better than these stock 125's. I wanted to hear what type of difference there was, now these are older Grado's, but man are they bright....so anyway BilaGrado's are the way to go for sure!!!!

Thanks Bill!!!!

 

Eclein, I owe you big time.  Nobody has ever done what you've done by comparing the modded 60s against stock versions of the higher stuff (I did against the PS1000 and the HF2 but I've got an obvious conflict of itnerest) so it's wonderful to read what you've written.  
 

post #943 of 5003

Bill- I'm trying to figure out how to make a  - BilaGrado - logo....I should of gotten you to sign a piece of paper so I could find someone to make little logo badges....LOL.. That would so cool.....

 

So these 125's have 1/4 Jack native and I need a headphone extension cord to sit and chill and I have one thats fine but I can't find 1/4 to mini adapter, I of course have like 3 of every other kind made on the planet....I know its here somewhere...

 

Should I mod the 125's??? I think I have too.....I still have a little dynamat....

post #944 of 5003

I responded to a PM from another head fier yesterday with regard to how these modded 60's stacked up against other Grado's. I used the 225 as my reference point. IMO the stock 225's sound much better than a stock 60 but they are very very similar in terms of their sound signature they are just more Grado. The bass ia a little better, the mids are smoother and more liquidy, and they offer a little more clarity and definition. Overall it's just a better headphone. I think a good analogy is it's sort of like the difference between 128kps and 256kps and they seem to have a little more dimensionality to them, they are airier sounding.

 

The modded SR60 though bridges the gap. Some are still going to prefer the 225 and the no muss no fuss approach, plug and play. My impressions on the 60 I modded is, recabling it with the 4 braided silver brought out more details and improved the clarity quite a bit, and the punch mod added some bass. The big difference is the tonal quality of the wood versus plastic. The wood is much more organic and has a more natural resonance. Not quite sure about soundstage yet though. I've done some extensive listening with jumbos and it adds quite a bit to the soundstage. Moreso than a 225 with bowls. It comes at a sacrifice though because they diffuse quite a bit of the Grado energy. They dont completely suck out the mids like they did when I tried them on the HF2 but they do get recessed. It also provides for a little darker presentation. It tames the highs, which to some extent is not all that bad of a thing.

 

I did some tinkering yesterday and switched some pads around. I posted on this above. Right now I'm using the comfies but I would like to find a compromise somewhere between what the bowls present and what the jumbos present. Any thoughts on that yet Bill?

 

And my HF2 got some head time yesterday too. I absolutely love that headphone. 

post #945 of 5003
Thread Starter 

 

Originally Posted by xaval View Post

Quote:
Originally Posted by KimChee View Post

Any update on the Brazillian rosewood, Bill?

And the croc headbands? :)

 

@dxps26 - Beautiful piece of work. Hope it sounds accordingly o)


I didn't order enough leather with a croc print to do this justice, but here's a prototype.

 

Photo on 2011-01-22 at 14.39 #2.jpg

 

I cut too close on the pattern, not giving myself enough extra room for padding.  As a result, this headband is just straight leather over the wire.

 

Photo on 2011-01-22 at 14.40.jpg

 

Still as these things go, it's surprisingly more comfortable than the stock vinyl pad.  

 

Photo on 2011-01-22 at 14.41.jpg

 

On my next try, I'm going to cut considerably wider so I can just go nuts with padding.  But before I do, I'm going to need a bit more leather than this.  It was a mistake to buy this in units of half a square foot.  The next time I buy leather, it's going to be a whole hide so I'll have plenty of room to maneuver.  Still, I'd wear this over the vinyl any day of the week (and twice on Sunday).  

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