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SR60-Mod - Page 27  

post #391 of 5003

I had just started a thread in DIY asking about tackling the Grattle and recabling my 325i. I got linked here, so I think I'll jump on the bandwagon. I read all 26 pages, and I'm really exited to try some of this out.

 

Originally, I'd been simply living with the occational grattle and blowing or sucking (yah) when it got bad to try and quiet it down. Then i started having an intermittent connecton to the left ear. I thought it was inside, so I was going to have to open them up. Then I discovered the bad connection was at the splitter and not inside the left cup. So I wasn't going to open them up, but now I want to try some of this stuff. I've been reading about other phones, hoping to find out about something that combines the qualities I like best of my Grado an Sennheiser, but costs less than $700. (Really want to try Audio Technica AD2000.) If I can get a little more bass, (always looking for that!) clean up the details and widen the sound stage a bit by venting the drivers and damping the inside of the phone, well, maybe I'm set!

 

I've got some star-quad and a jack laying around I was going to recable them with, but I'm sceptical it would make an improvement, other than being repaired, over the stock cable. I've never been big in the cable camp. I did make a star-quad cable for my HD590, which helped just slightly, but those have a tiny little cable. They also have a thick veil compair to the Grado either way. Apples and oranges. The idea of gaining an improvement through silver is interesting though. One the one hand, even the plain braid is fairly expensive, and my inner cable skeptic is screaming. Logically however, I know it might make a difference over stock or star-quad because it's actually a different material. I want to make a cable at least as long as stock, and might end up doing interconnects if it turns out well, so I'd easily spend over $100. I have the star-quad, so it's basically free. Also, 24awg seems really small. Any probably benefit to going at least to 22, even if I have to braid it myself? The marginal cost shoulding me too bad...

 

On damping. is there a consensus on the best material yet? I see the felt, and I see some other stuff I'm not really familiar with. I don't know much about the subject. I suppose you don't really want to reduce the internal volume of the cup? But also want something that absorbs sound. The felt is not specfically inteded for that purpous, though, right?

 

On pads. I've been using the HD414 pads for ever. I did the quarter mod, but then turned them around and put them on backward so there's slightly more padding. If they weren't ugly yellow, they'd look absolutely stock. I couldn't stand the stock pads either. My ears were bruised after a few hours. How about those jumbo pads? Are they more comfortable than the stock 325 pad? Sounds liek they move the cup away from the ear if they're making more sound stage and less bass, so I might assume yes. I'm really happy with the 414 the way I have them setup, so i'm not to concerend.

 

Is there anything I should know about opening a 325i vs. a plastic cup?

 

Thanks, this thread is awesome!

post #392 of 5003
Quote:
Originally Posted by Nightslayer View Post

Eh I'm insulted. If you could see my previous posts you should be able to tell that it goes way beyond placebo, really.
 


Not necessarily. The other day I knocked my cans off their stand onto my DIY amp. Didn't seem like much at the time, but afterwards everything didn't seem to sound quite right - I was having to turn the volume up more than usual so the amp must be broken, or the cans, or my ears what about my ears OH MY GOD WHERE DID THE TREBLE GO WHAT HAPPENED?

 

The next day, everything was fine. Sound was full, clear and sexy.

 

I know yours was a more extended worry, but still. Sometimes it's good too take a break. Now enjoy your cans.

post #393 of 5003
Quote:
Originally Posted by Nightslayer View Post

I am utterly stumped. I went for a three-day camp, came back from the camp and put on my headphones, and the first thing I noticed was. Wait the sound sounds.. full. Then I realize OHMYGAWD THE BASS. THE BASS IS ACTUALLY THERE. And now I'm wondering why my resoldering of the connections and blowing on the vents and sucking on the vents never worked, but leaving it alone for three days somehow did. Here's to hoping nothing happens to the sound now (:


Whew, I am glad to hear that! biggrin.gif

 

Might have something to do with your source or your amp. Might want to check with other headphones.

post #394 of 5003

@ Darkwolf, I am going to break down your post into managable sections.

 

 

Quote:
If I can get a little more bass, (always looking for that!) clean up the details and widen the sound stage a bit by venting the drivers and damping the inside of the phone, well, maybe I'm set!

Part of what makes the sr325s special is the metal shells that they have. If you damp any part of this, you will remove that special quality that you paid extra for. Venting is fine, but you would be the first (that I remember) to vent the 325i, so YMMV.

 

I'm not going to comment on quality increases from other cables, but replacing your (not functioning) cable with star quad before you pay for silver is probably a good idea.

 

Quote:

 

On damping. is there a consensus on the best material yet? I see the felt, and I see some other stuff I'm not really familiar with. I don't know much about the subject. I suppose you don't really want to reduce the internal volume of the cup? But also want something that absorbs sound. The felt is not specfically inteded for that purpous, though, right?

The rear magnet covers (I think that's what they are called) already have a tar dampening material on them. Most of the benefits from this thread are geared towards lower models.

 

Quote:
Is there anything I should know about opening a 325i vs. a plastic cup?

 

 

Yes, since the housing is metal, it will heat up differently and won't bend. Bilavideo said that 325is are a pain to open somewhere in this thread.

 

That's all the help I can give, maybe someone with more knowhow can guide you further.


Edited by BobSaysHi - 11/15/10 at 3:10pm
post #395 of 5003

Thanks again Bob. Maybe I was already getting ahead of myself. I sort of assumed that if the internal geometry is about the same, than it should benefit from the same mods. But like I said, I'm no engineer. My intuition still says that the venting is to do with airflow, (geometry) and that damping is to do with resonance. (Geometry and material.) But I'd like to hear input from someone who's had them apart and maybe tried some of this stuff. I'm certainly not going to spring for silver cable right off the bat either. My current cable is working for the most part, just have to tweak it a little if it cuts out.

 

I'm gonna go to the White Plains NY meet on the 20th. I won't be doing anything before then. Hopefully after I spend the day listening to gobs of gear and picking brains I'll have a lot better perspective on what I want to do next. If I find the deminishing returns too steep to spring for different phones, or even silver cable for these, I might buy speakers instead, even though I don't get to use them nearly as often.

 

Anyway, I don't want to thread-jack. I want to know what Bilavideo does next.

post #396 of 5003
Quote:
Originally Posted by Nightslayer View Post

I am utterly stumped. I went for a three-day camp, came back from the camp and put on my headphones, and the first thing I noticed was. Wait the sound sounds.. full. Then I realize OHMYGAWD THE BASS. THE BASS IS ACTUALLY THERE. And now I'm wondering why my resoldering of the connections and blowing on the vents and sucking on the vents never worked, but leaving it alone for three days somehow did. Here's to hoping nothing happens to the sound now (:


Now that is strange...but interesting and good news. I can only think that the diaphragm or voice coil somehow snapped back into correct position. Perhaps during the suck operation the diaphragm suspension was stretched a little bit and needed time to relax and properly center the voice coil within the magnetic gap...that's as far as my thinking takes me. During a physical drop or shock stretching of the suspension/diaphragm might also explain why others have noticed reduced output...just needing time to realign and self repair. But good to hear you got em working.

post #397 of 5003

I miss my old sr80i :(

 

400.jpg

 

I'm interested in buying another sr60i btw

post #398 of 5003

I love your signature line about animals.

 

And I love my 325is w/ G-Cush.  I hope, as we all do, that the love affair never ends.

post #399 of 5003
Quote:
Originally Posted by bbophead View Post

I love your signature line about animals.

It's from "The Wicker Man." The original, not the god awful remake with Nicholas Cage. Go watch it.

 

post #400 of 5003
Quote:
Originally Posted by DarkWolf View Post

Thanks again Bob. Maybe I was already getting ahead of myself. I sort of assumed that if the internal geometry is about the same, than it should benefit from the same mods. But like I said, I'm no engineer. My intuition still says that the venting is to do with airflow, (geometry) and that damping is to do with resonance. (Geometry and material.) But I'd like to hear input from someone who's had them apart and maybe tried some of this stuff. I'm certainly not going to spring for silver cable right off the bat either. My current cable is working for the most part, just have to tweak it a little if it cuts out.

 

I'm gonna go to the White Plains NY meet on the 20th. I won't be doing anything before then. Hopefully after I spend the day listening to gobs of gear and picking brains I'll have a lot better perspective on what I want to do next. If I find the deminishing returns too steep to spring for different phones, or even silver cable for these, I might buy speakers instead, even though I don't get to use them nearly as often.

 

Anyway, I don't want to thread-jack. I want to know what Bilavideo does next.

 

Don't know about your other inquires but I can tell you a bit about opening up the 325i. And just to confirm, it is the gold cupped 325i not the newer silver 325is you've got right? If so, it took me a long time to open mine up...perhaps you'll be luckier.

 

First, I removed the foam pads and removed the drivers from the forks. I put the drivers grill side down on the kitchen table and fired up the hairdryer. Then holding the cable near the entry point of the driver, and holding the hairdryer stationary with the other hand aimed ONLY at the gold cup side, I rotated the driver around in a circle back and forth taking just a few seconds to complete a clockwise counter clockwise loop. Just be careful to NOT lift the driver off the table when rotating...you don't want any heat reaching the diaphragm through the grill side, or the other side too as mentioned. Even with the hairdryer on high and just a few inches from the driver it took a good 15-20 minutes to make the glue soft enough. When it was soft enough I was able to simply pull them apart by hand.

 

I haven't tried damping yet inside my 325i because I'm using wood cups instead of the stock metal gold ones but you may need damping on your cups. I feel (but could be wrong) that damping with wood cups may not be necessary since I'm not hearing anything too tonally peaky but that's another story.  
 

For damping I was thinking of maybe trying the same felt/fibre tape used to cover the vent holes. I know this tape is used elsewhere in electronics (like cable or wire dressing in tape walkmans) but I forget the name of it or where to buy it. Maybe somebody else here knows.

post #401 of 5003

Hi guys,

 

Just bought a new pair of sr60is and I guess I'll add another walkthrough with pics to the thread when they get here. Going to do the whole shebang with these guys.

 

I've missed my grados.


Edited by BobSaysHi - 11/16/10 at 9:43pm
post #402 of 5003
nice
post #403 of 5003

Update: I still haven't opened them up, but I did repair the cable by cutting out the splitter and soldering up the wires. Now it's just a section of heat shrink. Nothing to special about that.

 

I just finished building a set of extenders though, and wow! I used some thick 1-1/2" id PVC from the hardware store. (Cost me $0.13 for two little pieces.) I sanded them down to "reasonably flat and the same size" at around 1/2" or so. Didn't actually measure. I hot glued a single strand each of 16 awg. speaker wire around the top to make the lip for the cups. I put a layer of electrical tape around the inside to dampen a little, maybe.. Don't have anything better yet. I used electrical tape to attach them to the cups. I am using them with the stock bowls, that I also put a layer of electrical tape around the outside of. They're fairly comfortable without the driver touching my ear. The 414 pads aren't stiff enough to deal with the extenders.

 

Some things now sound a bit boomy and have bloated mid bass. Male voices tend to sound slightly like they're coming through a telephone. That's the extent of the cons so far. On the pros side, the bass has a lot more impact, and the over all sound has a lot more authority. The sound stage is wider, and less details get lost  layering over top one another. Some stuff outright kicks ass with this mod. Fleetwood Mac sounds amazing! Sisters of the Moon, which I've been using as a reference track for a little bit just plain owns. Prior to the head-fi meet in NYC, I hadn't really noticed the electric guitar that keeps poping up in the right side, other than to note it's presence. A couple phones in and someone handed me some LCD-2s coming out of a big ass tube amp. WOW! The electric guitar not only sounded absolutely live, but I felt my head was right next to the amp and I could feel the air moving on my ear. Most of the other phones, even high end ones just didn't come close to that. I've been after it ever since. My speakers make it more prominent, but not live. With this mod, I'm at least 80% of the way there, which is well in the realm of "very impressive."  Female vocals don't seem to be harmed, which is great. I could listen to my Fleetwood Mac collection straight through right now I think.

 

I'm going to be working with the EQ in foobar2000 a bit to see if I can clean up the mid bass bloat. I've tweaked it a bit and it's already a little better. I also need to give my self time to adjust. The Grados are so colored (I found this out over the weekend too) that just seems like, "What's a different color if I like it?" I also need to work with the pads a little to get them more comfortable for longer listening.

 

If you count the glue gun and sticks I bought, along with the price of the PVC, the ~6" of speaker wire and the bit of electrical tape I've gone through, I'm easily under $10 into this. I couldn't be happier with how it's turning out. It'll make me really think hard before I vent the driver at all. It might just turn into an upscale set of Dr. Dre's... I just heard some Dr. Dre "Sillzes" or whatever they were. The smaller ones. $180 they wanted for them! I had a good laugh. You can buy DT990's on Amazon for that much that'll blow those little turds out of the water. They're barely even mid-fi and would be equaled or beaten by most of Radioshack's $45+ crap. I'm digressing. Oh, "Tusk" sounds great too! I'm closer to hearing the skin of the drums, and the sounds of a crowd in the back ground are both audible, and still in the background. Yatzy!

 

post #404 of 5003

I found some ~1/4" foam with an adhesive backing that came with one of the window air conditioners. I used that to damp the inside of the extenders and it cleaned things up a bit. If anything though, they might sound a bit stuffy, almost like a hint of Sennheiser veil got mixed in. They're still a bloated and telephoneish for few things. Others sound amazing. I also used some of the foam on the headband. I lined the strap most of the way up bith sides laving an inch or so bare at the top. This spaces the cans out so the pads sit at a better angle, which improves comfort.

 

Oh wow. honky or not, I just popped the 590's on for a minute and the sound was around 8 times smaller! Hmm, but they do make the 590 sound a touch bright, even if still vieled pretty badly. What a mess.

 

Ultimately, I might go back and shorten up the spacers a little.

post #405 of 5003
Thread Starter 

SOME NEW PICS

 

Shells1.jpg

Shells2.jpg

Shells3.jpg

Shells4.jpg

ShellsStraightUp.jpg


Edited by Bilavideo - 11/24/10 at 5:47pm
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