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Just listened to some Fostex T50RPs today... WOW! - Page 207

post #3091 of 10641

Wow, these mods really work...  L3000.gif

 

I just got my T50RP's.  I listened to them for a bit but immediately realized their flaws.  I had already ordered the mod material so here's what I did:

 

- Plasticine mass damped the rear of the baffle in every place possible.  I put a lot in on each side, they were super damped.

- Lined the back of the cup with Silverstone acoustic foam.  I didn't just do a few strips, the whole back of the cup is lined with this stuff except the curved sides because I didn't want that part to press against the plasticine and greatly reduce the volume inside the cup

- Removed the felt from the front (ear side) of the baffle (NOT the back of the driver)

- Shure SRH840 Pads

- Silverstone acoustic foam donuts that are double layered on the back half to push the rear of the pad up to get an angled affect -- it works

 

I could immediately tell...

 

- Stronger bass, deeper sub-bass (from better seal)

- Much tighter bass

- Smoother mids

- Crisper, more detailed highs, though there is slight sibilance

- Just more awesome overall

 

I really liked the stock sound signature so I have zero desire to remove white felt from the back of the driver.  The highs are also good as they are so I will not be doing a reflex dot.  Before I poke around any more in the baffle and cup, I will be doing at least 50 hours of listening.  So far, this new improved soung signature is awesome.

 

Thanks guys!

 

 

EDIT:  I'm going to post why these mods work for my preferred sound signature.

 

- I'm more team treble than a bass head.  I like deep extensions in the bass but I like when bass knows its place.  I'd prefer it not be as forward.  Well-balanced is what I prefer I suppose.  

 

EIDT 2:  I should tell you how I'm running these:

 

Play on Mac OS X using FLAC Files (16bit/24bit mixture) --> Opus DAC --> Bijou Tube Amp --> T50RP's


Edited by wdahm519 - 9/30/11 at 4:16pm
post #3092 of 10641

Schweeet!  Congrats.  Looking forward to pix and details....   beerchug.gif
 

Quote:
Originally Posted by wdahm519 View Post

Wow, these mods really work...  L3000.gif

 

I just got my T50RP's.  I listened to them for a bit but immediately realized their flaws.  I had already ordered the mod material so here's what I did:

 

- Plasticine mass damped the rear of the baffle in every place possible.  I put a lot in on each side, they were super damped.

- Lined the back of the cup with Silverstone acoustic foam.  I didn't just do a few strips, the whole back of the cup is lined with this stuff except the curved sides because I didn't want that part to press against the plasticine and greatly reduce the volume inside the cup

- Removed the felt from the front (ear side) of the baffle (NOT the back of the driver)

- Shure SRH840 Pads

- Silverstone acoustic foam donuts that are double layered on the back half to push the rear of the pad up to get an angled affect -- it works

 

I could immediately tell...

 

- Stronger bass (from better seal)

- Much tighter bass

- Smoother mids

- Crisper, more detailed highs, though there is slight sibilance.  I'll see if this goes away in the next 50 hours, if not then thats my next fix.  

- Just more awesome overall

 

I really liked the stock sound signature so I have zero desire to remove white felt from the back of the driver.  The highs are also good as they are so I will not be doing a reflex dot.  Before I poke around any more in the baffle and cup, I will be doing at least 50 hours of listening.  So far, this new improved soung signature is awesome.

 

Thanks guys!

 

 

EDIT:  I'm going to post why these mods work for my preferred sound signature.

 

- I'm more team treble than a bass head.  I like deep extensions in the bass but I like when bass knows its place.  I'd prefer it not be as forward.  Well-balanced is what I prefer I suppose.  



 

post #3093 of 10641
And again I tell you that I'm hearing more stuff with my test tracks.
@LFF, 'counting' more evident wink.gif
post #3094 of 10641

I don't know if I've enjoyed a pair of headphones this much since my first pair of M50's....

post #3095 of 10641

Another Option:

 

I removed the 3M Transpore Tape from my "Comparison Modded Phones #2", in the quoted text, below.  I added 1, 2, and then 3 layers of "Johnson & Johnson Secure-Comfort Tape" (perforated cloth) to the naked drivers, with a reflex dot for all 3 trials - and compared each to my "Modded Reference Phones #1" in the quoted text.  

 

The results are very similar to "3M Nexcare flexible clear" tape.  By changing the number of tape layers (J&J Secure-Comfort and 3M Nexcare flexible clear tape), you can modify the sound signature to suit your ears.  One layer provides more bass and less treble.  Three layers provide a bit less bass and a bit more treble.  Two layers split the difference.  These tape mods "knock it outta the park!"  You get:  Deep, textured, controlled bass - more with fewer tape layers. Mids/vocals remain clear and can be moved closer to you with each successive tape layer. Treble is brightened with each successive tape layer.  WOW!

 

I next plan to try a layer or two of these 2 tapes on the Stock white driver felt to see what happens.

 

J&J Secure-Comfort Tape Mod Pix 1.jpg

 

J&J Secure-Comfort (perforated cloth) tape mods:

 

1. Paxmate Plus in the cups

2. Plasticine in the baffles

3. Stock white driver felt removed

4. Johnson & Johnson Secure-Comfort Cloth tape X 3 layers

5. Plastic furniture bumper - barely seen on the driver center grid space

6. Paxmate Plus ring under ear pads

7. Stock ear pads and cable.

8. Stock black bass port felt inside the cups in place

 

3M Substitute?.jpg
 

Quote:
Originally Posted by bluemonkeyflyer View Post

1. Modded Reference Phones #1:

 

 

Comparison Modded Phones #2:

 

The same configuration as my Modded Reference Phones #1, as above in the quoted text, except the stock white driver felt was removed and 3 layers of "3M Nexcare flexible clear" tape (3M Transpore) and a reflex dot were applied.

 

My Modded Reference Phones #1 are slightly brighter than my Comparison Modded Phones #2 that have three layers of 3M Nexcare flexible clear tape/reflex dot instead of Stock white driver felt.  Otherwise, they are very similar in sound signature and sound quality.  Both have a wide soundstage with very good 3D sensation, complex and controlled deep bass, clear mids, and airy highs.  These mods are the so simple to make and deliver the best "OMG Factor" of all the innumerable mods I've tried.  

 

If you have ruined your stock white driver felt and want to try something different, get some 3M Nexcare flexible clear tape and a reflex dot.  Try 1, 2, and 3 layers of this tape and a reflex dot; tune the 4 bass port slots to suit you and see what you think. The SQ is phenomenal (to my ears) with Diana Krall, Metallica, David Bowie, Leonard Cohen, Patricia Barber, Steely Dan, Classical, Coldplay, Foster The People, Radiohead...you name it...it all sounds fantastic!



 


Edited by bluemonkeyflyer - 9/30/11 at 4:19pm
post #3096 of 10641

I take back what I said about sibilance.  When I was writing that part I forgot that I had an EQ setting on that I forgot to turn off and it was causing some funky sibilance to happen. 

post #3097 of 10641
Way to go BMF smily_headphones1.gif
post #3098 of 10641

beerchug.gif

 

This is Too Much Fun!

 

I look forward to hearing about everyone's results who try these simple mods.  It's so easy and cheap, and incredible what you can do to tune these to meet your preferences.

 

Quote:
Originally Posted by dogears View Post

Way to go BMF smily_headphones1.gif


 

post #3099 of 10641
Quote:
Originally Posted by dogears View Post

@LFF, 'counting' more evident wink.gif


Very cool....wink_face.gif

 

 

I'm sad as I sent my Paradox headphones away for a few days. Hope to get them back by the 15th. Until then...I am missing them soooo much!


Edited by LFF - 9/30/11 at 5:20pm
post #3100 of 10641

^I might just keep that config biggrin.gif Scary bass I tell you! eek.gif

The T50RP is Stupendously Musical don't you think people? biggrin.gif

post #3101 of 10641

I played some Skrillex after a few more modifications (Cinema + Monsters) and my head just keeps freakin' rumbling (hooray basshead.gif). The only thing is, I modded one side more than the other to compare the two, and the side I didn't tamper with too much (only added BluTak [dont hate I got some before people started using plasticine :P] and removed the felt from the front of the driver) has less bass but it seems like all of the vocals just shift a bit to the left (the side I didn't mod too much) a bit. It feels kind of weird...

 

Also, my mom's co-worker wants me to mod a pair for her and also asked me if Beats Solo's were good, but I just told my mom to tell her that I would, and she would just need to pay for the supplies as well as eventually find a retailer selling them.

 

Don't say it's a blind suggestion that she probably shouldn't, considering my friend has a pair. He understands that they're not the best headphones for the price, but he just wants it to use as a necklace. ._.

 

Edit: Forgot to mention that the only slightly modded side is also a tad brighter than the side which I removed the felt from the back of the driver from.


Edited by justinliu - 9/30/11 at 7:20pm
post #3102 of 10641

I just added (out of curiosity and lack of bit of bass) two layers of the Nexcare Flexible Tape (Transpore -breathable) to the back of the drivers in place of the white felt.  There is slightly more bass and slightly less harsh treble now.  The slight sibilance is gone, the treble is sweeter and the bass is warmer.  I don't think (to my ears and personal taste) that the bass ports need to be tuned further.  I played around with closing off the vents with electrical tape without removing the foam just to get to see what "more closed off" sounds like.  The bass doesn't really change at all but the treble goes back to being team treble so no thanks on that one.

 

EDIT:  No reflex dot used.

 

I took some pictures and I will post them later!

 

You could say I am *very* happy at this point with the outcome.  These sound great.


Edited by wdahm519 - 9/30/11 at 8:05pm
post #3103 of 10641
Quote:
Originally Posted by wdahm519 View Post

I just added (out of curiosity and lack of bit of bass) two layers of the Nexcare Flexible Tape (Transpore -breathable) to the back of the drivers in place of the white felt.  There is slightly more bass and slightly less harsh treble now.  The slight sibilance is gone, the treble is sweeter and the bass is warmer.  I don't think (to my ears and personal taste) that the bass ports need to be tuned further.  I played around with closing off the vents with electrical tape without removing the foam just to get to see what "more closed off" sounds like.  The bass doesn't really change at all but the treble goes back to being team treble so no thanks on that one.

 

EDIT:  No reflex dot used.

 

I took some pictures and I will post them later!

 

You could say I am *very* happy at this point with the outcome.  These sound great.


They are fun and different from HD 650. They just sound more 'ortho.' Liquid mids to die for, imaging is pinpoint albeit gated, (not as deep) and a sound that's more nattural. The sound is sort of floated more than 'forced' to you. = Natural.

However, even though they voice /sound similar, they image differently. In this regard I actually preffered the 650, and there were a few other areas the HD 650 sounded true to life in. But this is with Silver / Blue Dragon recable. (Like you wdahm ; ). I'm sure you've noticed the same thing. With a recable, I think the T 50 would be a truly superior phone to a recabled HD 650! Have you received the same impressions wdahm?
post #3104 of 10641

Has anyone tried the Fostex with a digital amp like T-amp?

 

With my current config - I'm hearing more surprises from FFF's (not LFF biggrin.gif) Superman! It's like I'm wearing the mic used on the recording! Well, if you know what I mean L3000.gif

post #3105 of 10641

Wait wait wait, I had the equalization holes covered by my acoustic foam on the ear side of the bezel.  

 

Now that I've cleared them...

 

HOLY CRAP!  These are nice.

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