Mar 29, 2012 at 6:50 PM Post #7,306 of 11,346


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But keep in mind, that all depends on the pads and specific damping scheme being used.  What he's doing is not the same as the mods being done here, so it doesn't apply directly. 



Yes, just simply meant that he doesn't immediately have to rip up his work if it sounds good to him. Just saying it can sound great with it closed up and not to be closed minded thinking that you can only achieve good sq with bass ports. 
 
Mar 29, 2012 at 8:52 PM Post #7,308 of 11,346


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How good are the RP2's by mrspeakers? I mean better than the LCD2's? I've done something similar, they sounded so dark and muddy.


Shouldn't have that sound.  What's your exact config?  
 
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Mar 29, 2012 at 9:20 PM Post #7,309 of 11,346


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No felt inside, and three of the four vents taped up. Why do you ask?


In my first mod attempt, I did what atl5 did (minus the dynamat) and completely covered the inside of the cup (including the port) with silverstone.  I also left the felt in place.  Taken together when my other mods and change in pads, my resulting trebles were very clean sounding compared to stock, but the bass was severely crippled (in fact, the roll off was laughable when I ran a frequency sweep).  In any event, it seems to me that the specifics of what various users have done to their bass ports are highly influential to both the highs and lows on these phones, but these details are often lost in the shuffle when the conversation in the thread often focuses on tape over the back of the driver, loading the baffle, shapes pressed into the plasticine, dynamat or no dynamat, etc...  That was my reason for asking.  By way of analogy, tiny tiny changes in the rotation of the port screw on Senn IE8's makes, or IMO breaks, the sound of those IEM's.  
 
Having removed the offending square of silverstone from my own pair, while leaving the felt in place, and then covering 2/4 slots from the outside with electrical tape, I am increasingly happy with the performance of my pair, but I totally look forward to future tweaking.  I believe I recall seeing some posts a long while back discussing taping the ports completely and then poking one or more holes in the tape with a needle.  Sounds like a fun experiment in reference to the basics I've read re the effect of porting subs.  
 
 
Mar 29, 2012 at 10:09 PM Post #7,310 of 11,346


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Shouldn't have that sound.  What's your exact config?  



No problem, I figured out why. It was due to the fact that I didn't replace the original felt on the bass ports with duct or electrical tape. I've heard that any acoustic foam place in the interior of the cups outside the little square thing does nothing. Damn, after you said they were as good as or even better than LCD2's I had to try it out for myself.
 
Mar 29, 2012 at 10:17 PM Post #7,311 of 11,346


Quote:
But keep in mind, that all depends on the pads and specific damping scheme being used.  What he's doing is not the same as the mods being done here, so it doesn't apply directly. 



Also, every pair is different and requires modding for your specific set.  They all have variance.
 
Mar 29, 2012 at 10:24 PM Post #7,312 of 11,346
But keep in mind, that all depends on the pads and specific damping scheme being used.  What he's doing is not the same as the mods being done here, so it doesn't apply directly. 


Exactly. Not being sure of his damping scheme, we more-or-less have to rely on some amount of porting if we want any response <50Hz.


Yes, just simply meant that he doesn't immediately have to rip up his work if it sounds good to him. Just saying it can sound great with it closed up and not to be closed minded thinking that you can only achieve good sq with bass ports. 

No reason to be confrontational, he's just trying to help. ;)

And he's right, actually, using the mods that are typically detailed around here, if you seal all the ports you won't have much lower or mid-bass to speak of.
 
Mar 29, 2012 at 10:41 PM Post #7,313 of 11,346


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How good are the RP2's by mrspeakers? I mean better than the LCD2's? I've done something similar, they sounded so dark and muddy.


They are very good. I consider them a step below the HE500 which is nothing to be ashamed of since I think very highly of the HE500.
 
 
Mar 29, 2012 at 10:47 PM Post #7,314 of 11,346
Are any of you folks going to the Charlotte NC meet this weekend? I'm bringing my T50s and would like to hear other variations for comparison.

They are very good. I consider them a step below the HE500 which is nothing to be ashamed of since I think very highly of the HE500.

I was told mine sound like some type of LCD-1.5, which I think isn't too far off.
 
Mar 30, 2012 at 1:02 AM Post #7,316 of 11,346


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Exactly. Not being sure of his damping scheme, we more-or-less have to rely on some amount of porting if we want any response <50Hz.

 
The pads are also part of it.  I can get bass extension all the way down with 003 pads and all ports sealed.  In fact, the bass can be overwhelming. 
 
But I do think being open minded is a great idea!  I find that it's also good not to make too many assumptions (or at least don't get stuck in your assumptions) because acoustics, especially with orthos is very complicated. 
 
Mar 30, 2012 at 1:10 AM Post #7,317 of 11,346


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But I do think being open minded is a great idea!  I find that it's also good not to make too many assumptions (or at least don't get stuck in your assumptions) because acoustics, especially with orthos is very complicated. 



I found this to be true in doing measurements.  Regardless of how accurate the measurements were (because come on, in comparison to Tyll it was probably bad measurements), I could see the delta change due to the application of the modification.  General rules of thumb worked for a large range of frequencies, but it wasn't an even boost in frequency response in a certain section.  It would be all over the place, and from there would require further very fine tuning that often went against the grain of what many believe here to achieve a flatter response.
 
Mar 30, 2012 at 1:22 AM Post #7,319 of 11,346


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what about raP MUSIC? do they sound good for that o no?



What? 
 
You need to:
 
- Use proper English
- Tell us what you mean
- In what circumstance, modded or un-modded?
 
It's hard for someone to just stumble in here with half a coherent question and expect a good answer, you have to understand.
 
Mar 30, 2012 at 1:29 AM Post #7,320 of 11,346
Has anyone tried the Plasti-dip stuff you paint on /dip tool handles into yet for adding vibration control and mass loading in all the rear cup recesses? I picked up a can of the Performix Plasti Dip for sealing the back of some replacement pads that were fabric backed instead of pleather.
Right on the can it says " Insulates: Vibration, deadens sound " Thought maybe it would be worth trying as a mass loader as well as a deadener rather than clay in the rears.  Someone's probably tried something similar I couldn't find anything in the search though. Looks like it's easy to simply paint in/on in layers.
 
may be worth looking at.
 

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