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post #3076 of 10678

^Drat. I'm not buying the O2 pads for YOUR comfort!

biggrin.gif

Thanks for the 'reality check' Bro!

post #3077 of 10678

Wow okay, I really want to read this thread but it's so freaking huge.

post #3078 of 10678

Sorry about that, someone got into my account.

post #3079 of 10678
Quote:
Originally Posted by DaBomb77766 View Post

Wow okay, I really want to read this thread but it's so freaking huge.



You should read it. It's da bomb. wink_face.gif

 

In all seriousness...it's a worthwhile read, especially if you plan on getting the T50's.

post #3080 of 10678

I've got them delivered yesterday and I'm giving them a two days stock listening, planning to do the mods on weekend.

 

Impressions of the stock T50RPs:

 

Definitely, very natural mids, vocals are gorgeous. Bass is quite detailed, but lacks authority (I'm not a bass-head). It has an armature iem bass impression almost. Highs sometimes promise greatness, but most of the time they are not there.

 

They suffer from boominess in sound, that makes the sound somehow fatiguing places. I think I've quite clearly got what is that plasticky resonance everyone is talking about. Soundstage leaves mixed feelings, and I don't use open cans at all)

 

I'm stocked with materials, so I intend to try reversible mods on them - plasticine in the baffles, acoustic foam in cups and around drivers, plus a reflex dot - I think this is BMF recommended scheme. Will post pictures and impressions.

 

PS. Stock comfort is good to me, 4/5 stars like. This was not expected, but I have quite an average head. They leak some sound out, which was not expected for a closed can.

 

PPS. How do you remove the pads? Do you pull from the outer circle of the pads around the cups, or the inner circle?


Edited by Cortlendt - 9/30/11 at 2:44am
post #3081 of 10678

Okay, since fuseboxx has heard that config already - I made some mods again and I am now enjoying this according to my taste:



2-2-2
0-T-0
2-2-2

 

where:

2: 2 layers Micropore

T: your ordinary masking tape

O: no tape, nada, open

 

vs my original recipe: it has lots of treble energy. Bass is tighter. Mids is back! about the same.

post #3082 of 10678
Quote:
Originally Posted by LFF View Post

You should read it. It's da bomb. wink_face.gif

 

In all seriousness...it's a worthwhile read, especially if you plan on getting the T50's.


...it's a dangerous read. After 100 or so pages you may be itching to mod but really you need to read the whole thread. If you don't you may make a mistake. For example removing the back-driver white cover irreversibly (there's now a reversible method, but that's another 100+ pages) which you may regret (I did).

If you think your patience won't last then I would recommend jumping in much later.
post #3083 of 10678

Cortlendt,

 

See post #2647 at this link:

 

http://www.head-fi.org/t/452404/just-listened-to-some-fostex-t50rps-today-wow/2640#post_7768186

 

Best wishes,

 

BMF

 

Quote:
Originally Posted by Cortlendt View Post

I've got them delivered yesterday and I'm giving them a two days stock listening, planning to do the mods on weekend.

 

Impressions of the stock T50RPs:

 

Definitely, very natural mids, vocals are gorgeous. Bass is quite detailed, but lacks authority (I'm not a bass-head). It has an armature iem bass impression almost. Highs sometimes promise greatness, but most of the time they are not there.

 

They suffer from boominess in sound, that makes the sound somehow fatiguing places. I think I've quite clearly got what is that plasticky resonance everyone is talking about. Soundstage leaves mixed feelings, and I don't use open cans at all)

 

I'm stocked with materials, so I intend to try reversible mods on them - plasticine in the baffles, acoustic foam in cups and around drivers, plus a reflex dot - I think this is BMF recommended scheme. Will post pictures and impressions.

 

PS. Stock comfort is good to me, 4/5 stars like. This was not expected, but I have quite an average head. They leak some sound out, which was not expected for a closed can.

 

PPS. How do you remove the pads? Do you pull from the outer circle of the pads around the cups, or the inner circle?



 

post #3084 of 10678

Quote:
Originally Posted by DaBomb77766 View Post

Wow okay, I really want to read this thread but it's so freaking huge.


Signal-to-noise ratio is pretty good, imo, with an acceptable amount of tail-chasing and reinventing the wheel. But if it's tl;dr, consider jumping over to ardilla's summary thread.

 

Edit: as bluemonkeyflyer mentions in the above post, this link is a good summary of the whys and hows.


Edited by micmacmo - 9/30/11 at 5:32am
post #3085 of 10678
Quote:
Originally Posted by HDMan View Post

Unfortunately, gotta say after all the mods, with 840 pads, they don't compare in anyway to the D7000's. No sounstage, hot midrange, unbalanced sound. That being said, all I'm running them out of is a soundcard, which was what the modded D7000's were using also. But they may improve greatly with an amp, let's see how they go when I get the Headzone Pro package from Beyerdynamic.



Sounds like you didn't mod correctly... wink_face.gif (just kidding).  That's too bad to hear.

post #3086 of 10678
Quote:
Originally Posted by HDMan View Post

Unfortunately, gotta say after all the mods, with 840 pads, they don't compare in anyway to the D7000's. No sounstage, hot midrange, unbalanced sound. That being said, all I'm running them out of is a soundcard, which was what the modded D7000's were using also. But they may improve greatly with an amp, let's see how they go when I get the Headzone Pro package from Beyerdynamic.


What modifications did you make?  What materials did you use?

 

post #3087 of 10678
Quote:
Originally Posted by HDMan View Post

Unfortunately, gotta say after all the mods, with 840 pads, they don't compare in anyway to the D7000's. No sounstage, hot midrange, unbalanced sound. That being said, all I'm running them out of is a soundcard, which was what the modded D7000's were using also. But they may improve greatly with an amp, let's see how they go when I get the Headzone Pro package from Beyerdynamic.

facepalm.gifSmiley-Facepalm.gif
 

 


Edited by LFF - 9/30/11 at 12:09pm
post #3088 of 10678
Quote:
Originally Posted by HDMan View Post

Unfortunately, gotta say after all the mods, with 840 pads, they don't compare in anyway to the D7000's. No sounstage, hot midrange, unbalanced sound. That being said, all I'm running them out of is a soundcard, which was what the modded D7000's were using also

those Denon's have a very high sensitivity and a very low impedance, making them ideal even off an ipod...the T50RP requires more juice. You didn't mention what soundcard either, if it's a cheapo C-Media/Realtek ASIC w/ a built-in 32 Ohm headphones driver, you've got your answer. Treat the T50RP like a $1K phone, and it will never disappoint IME.

About the earpads, I think the 840's sound metallic and plain horrible w/ the driver back-membrane intact...it would supposedly be a different story once you peel it off.
post #3089 of 10678

My O2 pads shipped today so hopefully soon :) Also tomorrow will be pretty exciting since I get my dac back from repair and a V200 amp which are better than what I'm currently using.

 

 

Also I'm not sure if I'm a fan of putting the felt over the bass ports. I'll stick with it for a few days but i don't quite like the balance. It definitely has less bass than no ports open and better quality but also I get more treble as well so it's definitely brighter than before.

post #3090 of 10678


1. Modded Reference Phones #1:

 

Quote:
Originally Posted by bluemonkeyflyer View Post

 

Chain: MacBook Pro with lossless files --> Toslink to Dacmini --> Modded T50RP's

 

My reference phones are BMF's without the Organdi.  I re-installed the stock white felt and added the following mods:

 

1. Paxmate Plus - 1 layer in the cup bottoms

2. Plasticine in back of baffles

3. Stock white driver felt back in place

4. Stock black bass port felt in place

5. Ring of Paxmate under ear pads

 

 

Naked drivers once again.  I tried 1 to 3 layers of "3M Nexcare flexible clear tape." The back of the package says "Hospital name: 3M Transpore Surgical Tape."  It has numerous perforations that allow just the right amount of air movement/driver excursion and adheres easily. Right off the bat with just 1 layer, I knew I was onto something great.  With only one layer of this tape, the cans opened up nicely but still had a tad too much sub-bass, slightly muffled mids on vocals, and veiled treble with no air at all.  Two layers was better and three layers much, much better than 1 or 2.  With each layer, the sub-bass was progressively controlled and the mids and highs unveiled.  Further tuning with a reflex dot better suits my tastes and hearing range.  This fourth set of modified T50RP's sound just like my third set used as my reference for these mod comparisons.  Closing off 1 to 3 bass port slots with electrical tape over the stock bass port felt allows for fine-tuning the bass:  the more slots covered, the less bass you get.  Closing all 4, however, resulted in a hollow, "in a well" type of sound effect superimposed over everything.

 

Conclusion:  With my preferred mods listed above, including stock white driver felt in place, I was able to sonically match their sound signature substituting "3M Nexcare flexible clear tape (3M Transpore) in place of the T50RP stock white driver felt.  This tape may be your solution if you mangled your stock white driver felt and want an equivalent to take yours back to stock SQ.  As always, your results may differ.

 

 

3M Transpore Mods.jpg

 

New and Improved BMF's - Modded set #4

 

Paxmate Plus in cups, Claytoons plasticine in baffles, Stock white driver felt removed, 3 layers of "3M Nexcare flexible clear tape ( aka Transpore )" over the back of the drivers, furniture bumper for reflex dot at center position of driver grid, Stock black bass port felt in place and no additional bass tuning, and a ring of Paxmate under stock ear pads.

 

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!

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