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Just listened to some Fostex T50RPs today... WOW! - Page 382

post #5716 of 10561

Couple question, mostly directed at mrspeakers:

 

1. For your latest version of the Rastapants 2 w/ 840 pads, what exactly are the 5mm risers you stuff the pads with? Would tissue work as well?

2. I don't really want to do anything that isn't reversible, so I'm not too keen on removing the white felt from the driver... how much of a difference will this make in SQ?

3. Any pro-tips for a first time mod?

 

 

 

Oh yeah, is there anything I can do about unbalanced drivers? The left can seems a bit "louder", or more prominent. It's not to the point where it's unlistenable, but its definitely noticeable.


Edited by steelle - 1/4/12 at 3:58pm
post #5717 of 10561
Quote:
Originally Posted by steelle View Post

Oh yeah, is there anything I can do about unbalanced drivers? The left can seems a bit "louder", or more prominent. It's not to the point where it's unlistenable, but its definitely noticeable.
Try checking if it isn't due to a contact issue in the headphone jack. Then try sealing the gaps around the jack inside the left cup. If all that fails, use the balance control in your amp / audio player / sound card control panel.
post #5718 of 10561

Here's a noob question.  Is the silverstone sound dampening foam better than dynamat for the cups?

 

 

post #5719 of 10561


The Silverstone foam will help with sound reflection and the Dynamat will help on the vibration of the cups. It all help on mass loading the front baffle if applied around driver.

Quote:
Originally Posted by sling5s View Post

Here's a noob question.  Is the silverstone sound dampening foam better than dynamat for the cups?

 

 



 

 

post #5720 of 10561
Quote:
Originally Posted by steelle View Post

Couple question, mostly directed at mrspeakers:

 

1. For your latest version of the Rastapants 2 w/ 840 pads, what exactly are the 5mm risers you stuff the pads with? Would tissue work as well?

2. I don't really want to do anything that isn't reversible, so I'm not too keen on removing the white felt from the driver... how much of a difference will this make in SQ?

3. Any pro-tips for a first time mod?

 

Oh yeah, is there anything I can do about unbalanced drivers? The left can seems a bit "louder", or more prominent. It's not to the point where it's unlistenable, but its definitely noticeable.

 

On the 840 I used both solid soft but carve-able foam and 2-3 layers of Akasa foam, they sounded close enough to each other.  I should measure but I've been crazy busy lately and test/measurement has taken second fiddle to chilling out and listening.

 

I agree with the earlier comment that if the balance is WAY off it's probably corrosion in the female receptacle, and a little de-oxit will probably solve it.  Usually corrosion like this "crackles" when you rotate the cable and there's audio on...   
 

 


Edited by mrspeakers - 1/4/12 at 11:10pm
post #5721 of 10561

I recently received my T50RP and REALLY like them! First, these are extraordinarily neutral transducers--so much so that I now find my HD 650 colored. Second, I also find myself more aware of the beautiful purity of the sound of instruments and voices. Finally, I feel a stronger emotional connection with some acoustic music through these headphones.

 

I have two complaints. First, the fit takes a lot of fiddling to get right; it's very unstable at first. (I tried stuffing the rear of the headphone pad to improve fit and soundstage, but it moves the transducers away from the ear, eviscerating low-frequency response.) Second, at higher volumes, vocals and violins can sound like they're being played through a pipe.

 

Given that the T50RP costs only $75, however, WOW!, these are spectacular headphones! (Big manufacturers, are you listening? You can make great headphones for less than $1k-2k!)

 

Great work, Fostex!


Edited by Balisarda - 1/12/12 at 4:24am
post #5722 of 10561

I am pleased to say that although the T50RP's are closed in design, they still can hold there own on the A8 Realiser. I recently did a PRIR of the Acapella Sphäron "Excalibur" http://www.acapella.de/en/hornspeakers/sphaeron_excalibur.php , they have 4 x 15" woofers, a big midrange horn and tweeter. They can go as low as 20hz and the T50RP delivers. The 3D dimensional sound is out of this world.

 

Can't wait for the Stax Omega's, but enjoying the T50RP's in the mean time.


Edited by HDMan - 1/5/12 at 10:39am
post #5723 of 10561

I got two of the supposedly new T20RPs from B&H in today, this is gonna be a fun time.

post #5724 of 10561


can you confirm (visually) that your drivers are similar/identical to the t50rp?

Quote:
Originally Posted by pyrokid View Post

I got two of the supposedly new T20RPs from B&H in today, this is gonna be a fun time.



 

post #5725 of 10561

Okay, this is ridiculous. I totally get the resonance issue. But for 50 dollars, you have to be kidding me. This is ridiculous. The mids. Oh my god, the mids. Holy God! Especially coming from Ultrasones, which kind of glaze over mids...

post #5726 of 10561
Quote:
Originally Posted by geetarman49 View Post


can you confirm (visually) that your drivers are similar/identical to the t50rp?



 



They are, at least on the one pair I opened up so far. I don't know enough about the specifics yet to really tell you anything other than that they match visually though.


Edited by pyrokid - 1/5/12 at 2:20pm
post #5727 of 10561

thnx ... might get a couple prs myself, then.beerchug.gif

post #5728 of 10561

Both of mine have the FOSTER DP29 sz1d as well.

post #5729 of 10561

As did mine. It was hard to see in the picture, but the writing matched and they also had the black housing and not the worse plastic white housing. 
 

Quote:
Originally Posted by pyrokid View Post

Both of mine have the FOSTER DP29 sz1d as well.



 

post #5730 of 10561
Quote:
Originally Posted by pyrokid View Post

Okay, this is ridiculous. I totally get the resonance issue. But for 50 dollars, you have to be kidding me. This is ridiculous. The mids. Oh my god, the mids. Holy God! Especially coming from Ultrasones, which kind of glaze over mids...



When you say glaze over do you really mean pillage?

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