Head-Fi.org › Forums › Equipment Forums › Portable Headphones, Earphones and In-Ear Monitors › beyer T50p: beyerdynamic Announces The T50p Portable Tesla Headphones
New Posts  All Forums:Forum Nav:

beyer T50p: beyerdynamic Announces The T50p Portable Tesla Headphones - Page 52

post #766 of 864

They were still made for the head of Roger the Alien, which makes them look silly out in public if you have a small to medium head. They absolutely could have done a better job with that and the cable.

 

But the sound? The sound is tops. Said with some Angels and Airwaves pumping through a total bithead. :)

post #767 of 864

I agree that the cable is very undersized and that could be an improvement for the BASS.

 

Does anyone know's how to open them?  I tried twisting and gently pulling on the earpads but to no avail.

 

I have done a quick search for MOD but it seems that nobody posted any re-cable job yet on the T50P.

 

biggrin.gif

post #768 of 864

Twinster, you should try the T50P out of your tube MAD EAR+ HD Purist, I thought tube and T50P were a very nice combo, but I heard them out of a hybrid.
 

post #769 of 864

Hey Mythless!

 

I will tried them and let you know. I just got new tube for it that should be a good match. I'm still burning them for now.  have you tried it with the Kicas?

 

Cheer

 

Simon

post #770 of 864

i wanna buy these amazing cans beyersmile.png but i also use a koss porta pro on my creative zen and at highest volume it's too low and they are 101 db,now these cans have 107 db now my question was are they much louder then my porta pro's....? k701smile.gifgr tim

post #771 of 864

Indeed, it's quite nice, very clean and transparent sound, the slight added bass in Caliente mode is a nice touch.  But, I think the T50P prefer a warmer sounding amp.  Time to see whether or not I want to venture into tubes, most likely I'll go hybrids.

post #772 of 864
Quote:
Originally Posted by dailysmoker View Post

i wanna buy these amazing cans beyersmile.png but i also use a koss porta pro on my creative zen and at highest volume it's too low and they are 101 db,now these cans have 107 db now my question was are they much louder then my porta pro's....? k701smile.gifgr tim


Regarding the Koss Porta Pro they are 60 ohms compare to the T50P 32 ohms. I found them easy to drive out of my iPhone. The Zen should be able to generate enough volume level.
 

post #773 of 864
Quote:
Originally Posted by dailysmoker View Post

i wanna buy these amazing cans beyersmile.png but i also use a koss porta pro on my creative zen and at highest volume it's too low and they are 101 db,now these cans have 107 db now my question was are they much louder then my porta pro's....? k701smile.gifgr tim


The question is at what input signal you achieve that volume. It looks like they chose dB SPL @ 1V.

For a non in-ear headphone 107 dB @ 1mW is a bit unrealistic, imo. But converted from @ 1V to 1mW it looks more realistic: 92 dB.

That also fits better to what can be seen in measurements.

 

So the t50p should be about half as loud if the above is right compared to the porta pro's if they produce 101 dB SPL @ 1mW.


Edited by xnor - 12/1/10 at 12:46pm
post #774 of 864
Quote:
Originally Posted by xnor View Post

Quote:
Originally Posted by dailysmoker View Post

i wanna buy these amazing cans beyersmile.png but i also use a koss porta pro on my creative zen and at highest volume it's too low and they are 101 db,now these cans have 107 db now my question was are they much louder then my porta pro's....? k701smile.gifgr tim


The question is at what input signal you achieve that volume. It looks like they chose dB SPL @ 1V.

For a non in-ear headphone 107 dB @ 1mW is a bit unrealistic, imo. But converted from @ 1V to 1mW it looks more realistic: 92 dB.

That also fits better to what can be seen in measurements.

 

So the t50p should be about half as loud if the above is right compared to the porta pro's if they produce 101 dB SPL @ 1mW.


Don't forget the Tesla technology wink.gif ... why should they measure them differently as usual (and compared to their other phones) and state such mistakable value ? (... don't tell me about marketing blabla ...) But I'm happy to ask bd directly via E-Mail about this for clarification.

 

I also had the opportunity to listen to the t50p on an iphone 4g ... couldn't put it to full volume without putting my ears at risk. They were very muted on a Sans Clip though with volume full up.

post #775 of 864
Quote:

Originally Posted by xabu View Post

 

Don't forget the Tesla technology wink.gif ... why should they measure them differently as usual (and compared to their other phones) and state such mistakable value ? (... don't tell me about marketing blabla ...) But I'm happy to ask bd directly via E-Mail about this for clarification.

 

I also had the opportunity to listen to the t50p on an iphone 4g ... couldn't put it to full volume without putting my ears at risk. They were very muted on a Sans Clip though with volume full up.

 

Tesla's a joke. tongue.gif

 

I don't know why they 'hide' this information. In other data sheets they usually write "x dB (1 mW / 500 Hz)" - which is perfect - but not so in the t50p data sheet.

 

Please do ask beyer.

 

About the Sansa Clip: if the t50p's specs were truly 107 dB @ 1 mW then you could enjoy songs with the Clip at around 102 dB (RMS).

In the other, more likely, case (92 dB @ 1 mW) you get only around 87 dB. wink.gif = Not extremely loud, like you said.

The iphone's only 6 dB louder, iirc.


 


Edited by xnor - 12/1/10 at 2:32pm
post #776 of 864

I've found what appears to be a fatal flaw in the T50p. There is a big hole in the fr. response where the lower midrange should be. there is nothing to tie the bass to the mid-midrange, which is necessary to present the soul of the music. You don't notice it that much for jazz but for pop/rock, some of the hook is missing, and the pieces don't lock together...there are three distinct pieces, the bass, midrange and treble, but the T50p seems to lack the glue to tie them together. I still like them, they give nice sonic thrills but the music is a square peg trying to fit into a round hole.

post #777 of 864

The same thing was said over at Headfonia, and I swear I'm not hearing it. But then again I'm not pushing the t50p's with anything more powerful than an iPhone or TBH. The greater the source, the greater chance you're going to hear the edge of what a headphone can do. Maybe I have the same hole in my hearing.

post #778 of 864

When my fave tunes no longer make me feel anything, and all I hear is the sonic structure of the recording, it's usually because the lower midrange is skewed or obscured.

post #779 of 864
Quote:
Originally Posted by xnor View Post

Quote:

Originally Posted by xabu View Post

 

Don't forget the Tesla technology wink.gif ... why should they measure them differently as usual (and compared to their other phones) and state such mistakable value ? (... don't tell me about marketing blabla ...) But I'm happy to ask bd directly via E-Mail about this for clarification.

 

I also had the opportunity to listen to the t50p on an iphone 4g ... couldn't put it to full volume without putting my ears at risk. They were very muted on a Sans Clip though with volume full up.

 

Tesla's a joke. tongue.gif

 

I don't know why they 'hide' this information. In other data sheets they usually write "x dB (1 mW / 500 Hz)" - which is perfect - but not so in the t50p data sheet.

 

Please do ask beyer.

 

About the Sansa Clip: if the t50p's specs were truly 107 dB @ 1 mW then you could enjoy songs with the Clip at around 102 dB (RMS).

In the other, more likely, case (92 dB @ 1 mW) you get only around 87 dB. wink.gif = Not extremely loud, like you said.

The iphone's only 6 dB louder, iirc.


 


Got an answer:

 

"the data stated by us are measured based on DIN EN 60268-7. The T 50 P nominal sound pressure level of 107 dB has been determined at 1 mW and at a frequency of 500 Hz. The impressed voltage at 32 Ohm is about 179 mV, to get a rated power of 1 mW."

Und im Original:
"die von uns angegebenen Daten sind nach DIN EN 60268-7 gemessen. Der Kennschalldruckpegel des T 50 p von 107 dB wurde bei 1 mW und einer Frequenz von 500 Hz ermittelt. Die anliegende Spannung an 32 Ohm beträgt ca. 179 mV, um eine Leistung von 1 mW zu erzielen".

 

whatever ...popcorn.gif

 

Edit: Compared to the values stated for the HM-801 output at 32 Ohm that sounds about right, because I can adjust the volume wheel only about 1/6 of the full range before damaging my ears ...

Edit 2: Where did you find the according technical data for the sansa? Unfortunately it's not stated on their site.


Edited by xabu - 12/2/10 at 11:40am
post #780 of 864
Quote:
Originally Posted by xabu View Post

Got an answer:

 

"the data stated by us are measured based on DIN EN 60268-7. The T 50 P nominal sound pressure level of 107 dB has been determined at 1 mW and at a frequency of 500 Hz. The impressed voltage at 32 Ohm is about 179 mV, to get a rated power of 1 mW."

Und im Original:
"die von uns angegebenen Daten sind nach DIN EN 60268-7 gemessen. Der Kennschalldruckpegel des T 50 p von 107 dB wurde bei 1 mW und einer Frequenz von 500 Hz ermittelt. Die anliegende Spannung an 32 Ohm beträgt ca. 179 mV, um eine Leistung von 1 mW zu erzielen".

 

whatever ...popcorn.gif

 

Edit: Compared to the values stated for the HM-801 output at 32 Ohm that sounds about right, because I can adjust the volume wheel only about 1/6 of the full range before damaging my ears ...

Edit 2: Where did you find the according technical data for the sansa? Unfortunately it's not stated on their site.


Well the t50p has a weird mids peak, it drops about -8 dB from there to 1 kHz (which I was referring to instead of beyer's 500 Hz). Additionally I've looked at a 1 V measurement and you cannot expect the driver to show the same efficiency at 0.179 and 1V.

 

Still, it's a bit weird...

 

The clip outputs about 10mW into 32 ohm, measured with an old multimeter. Considering t50p's 107 dB @ 1mW tongue_smile.gif it should be loud enough wink.gif

(Are you sure you didn't have the EU volume limit enabled with the clip?)


Edited by xnor - 12/2/10 at 12:17pm
New Posts  All Forums:Forum Nav:
Head-Fi.org › Forums › Equipment Forums › Portable Headphones, Earphones and In-Ear Monitors › beyer T50p: beyerdynamic Announces The T50p Portable Tesla Headphones