Since I put the velour HM5 pads on my existing pair they do leek a lot more so I've decided to make myself another pair with better isolation. I'm currently in the US so I've picked up a new stock pair t50rp's and finally also managed to get myself a pair of the Alpha Pads.

Question is if anyone has gotten a good result with the Alpha pads and if so with what configuration?

peter123 said:

Since I put the velour HM5 pads on my existing pair they do leek a lot more so I've decided to make myself another pair with better isolation. I'm currently in the US so I've picked up a new stock pair t50rp's and finally also managed to get myself a pair of the Alpha Pads.

Question is if anyone has gotten a good result with the Alpha pads and if so with what configuration?

Click to expand...

I've managed to make a good mod with AP for the T50RP's : http://www.head-fi.org/t/734437/fostex-t50rp-tuned-for-alpha-pad-mrspeakers-leather-comfort-strap-included-european 
 
I've used motor boat engine isolation (cf post below), plasticine and cotton.
 
How to :
 
Cut the black felt around the driver (don't cut the "grid" )
 

 
For the driver side I've done the same work than mrspeaker with his rastapants : plasticine all around the driver and on the rim (to seal the cup), don't touch the white gauze. 
 
On the pics the cotton stick on the plasticine

 
 
I've covered the inside of the cup with motor boat engine isolation (thickness : 1cm) and placed cotton over it (6 balls). I've also closed the vent, but not entirely (3 of 4 vents) 
 
On the pics some pieces don't stay in place while the cup is placed vertically, I've covered every hole.
 

 
Place the cotton (some of it stayed stick on the plasticine that's why it not covered everywhere on the pics)
 

 
NOT on pics : the electric tape covering 3 of 4 vents in each cups.
 
 
With stock pad the result is very thight bass in good quantity, a lot better treble, great mids => a bright headphone but non sibilant.
 
With the Alpha Pads on : bass got huge depth ! (very similar to the moded Yamaha YH100 one's), better SS and overall SQ, highs a little less present. 
 
In my opinion it's a very good mod ! 
 
By the way : don't put akasa with Alpha Pads, you will got WAY too much bass !  

tasoeur said:

I've managed to make a good mod with AP for the T50RP's : http://www.head-fi.org/t/734437/fostex-t50rp-tuned-for-alpha-pad-mrspeakers-leather-comfort-strap-included-european 

I've used motor boat engine isolation, plasticine and cotton.

How to :

For the driver side I've done the same work than mrspeaker with his rastapants : plasticine all around the driver and on the rim (to seal the cup), don't touch the white gauze. 

I've covered the inside of the cup with motor boat engine isolation (thickness : 1cm) and placed cotton over it (6 balls).

With stock pad the result is very thight bass in good quantity, a lot better treble, great mids => a bright headphone but non sibilant.

With the Alpha Pads on : bass got huge depth ! (very similar to the moded Yamaha YH100 one's), better SS and overall SQ, highs a little less present. 

In my opinion it's a very good mod ! 

By the way : don't put akasa with Alpha Pads, you will got WAY too much bass !   

Click to expand...

Thanks a lot!

This sounds like a great alternative tuning to my current pair. Exactly what I was looking for

I'll check it out as soon as I get back home. I've got loads of leftover materials since I made my last pair so I'll probably got all I need to make these.

I hope it will help, don't hesitate to share your futur mod !  
 
I'll take pictures of my mod if you want 

tasoeur said:

 
 
I'll take pictures of my mod if you want 

Click to expand...

 
Please do, my T50s are out for paint, and i plan on using alphas, or the alcantara pads i also have. I want to use the alphas since i already have them and i wouldnt have to buy a second pair of 1540 pads(already on my he4).
So, was going to try lattice mod in cups with rock wool, few other little things. But, would like to see your mod as well in case mine doesnt work to well.

hemipowered007 said:

   
Please do, my T50s are out for paint, and i plan on using alphas, or the alcantara pads i also have. I want to use the alphas since i already have them and i wouldnt have to buy a second pair of 1540 pads(already on my he4).
So, was going to try lattice mod in cups with rock wool, few other little things. But, would like to see your mod as well in case mine doesnt work to well.

Click to expand...

Okay, I'll take them tomorrow as I need a good light to take clear pics. 
 
A little bonus to my mod : you can easily remove everything ! Nothing have to be glued.
 
For the moment here is the isolation (acoustic one : http://www.solutions-elastomeres.com/en/9-composite-foam/110-se50-composite.html) I've used :
As you can see, I've cut pieces of 1cm (thickness).  
 

Thanks!

I've updated my "How to " post with pictures ! 

tasoeur said:

I've updated my "How to " post with pictures ! 

Click to expand...

Thanks a lot!

tasoeur said:

I hope it will help, don't hesitate to share your futur mod !   

I'll take pictures of my mod if you want 

Click to expand...

So I finally found the time to mod these. I did pretty much the same as you but didn't have any motorboat engine isolation around so I used some thick dampening foam for speaker instead . Wasn't really happy with the vocals so I added one 22 mm furniture felt pad behind the driver on each side, that did the trick. They now have great bass extension without much bleed and nice forward vocals the way I like them. I'm very happy with the result.

Thanks again for sharing your mod!

Pretty amazing that these are the same headphones (at least most parts ) that the ones I've got the HM5 velour pads on. That pair is much more airy and has better soundstage but less bass. Although this pair is more to my preferences they leak a lot of sound and lack some bass impact so the new pair makes a perfect complement and leaks very little sound. The Alpha pads are also extremely comfortable.

One for every occasion

peter123 said:

One for every occasion

Click to expand...

OMG are those Alpha Pads... WOW I need a pair of those PRONTO!
Big Sound Pillows...

trolldragon said:

OMG are those Alpha Pads... WOW I need a pair of those PRONTO!

Big Sound Pillows...

Click to expand...

Yep, they're seriously comfortable

peter123 said:

So I finally found the time to mod these. I did pretty much the same as you but didn't have any motorboat engine isolation around so I used some thick dampening foam for speaker instead

. Wasn't really happy with the vocals so I added one 22 mm furniture felt pad behind the driver on each side, that did the trick. They now have great bass extension without much bleed and nice forward vocals the way I like them. I'm very happy with the result.

Thanks again for sharing your mod!

Pretty amazing that these are the same headphones (at least most parts ) that the ones I've got the HM5 velour pads on. That pair is much more airy and has better soundstage but less bass. Although this pair is more to my preferences they leak a lot of sound and lack some bass impact so the new pair makes a perfect complement and leaks very little sound. The Alpha pads are also extremely comfortable.

Click to expand...

Hi peter ! 
 
It's nice to hear !
I'll suggest the 22mm furniture felt thing to the buyer of my T50RP ! 
 
And yeah, Alpha Pads are sooo comfy 

peter123 said:

One for every occasion

Click to expand...

Indeed 

Ha ha. I like that name: Sound Pillows