blackreplica
100+ Head-Fier
- Joined
- Apr 14, 2004
- Posts
- 237
- Likes
- 1
Currently Measured Headphones:
Audio Technica CM-5
Shure E2C
Westone UM2
Sennheiser PC150
Sennheiser HD590
Sennheiser HD650
Beyerdynamic DT770 (80 ohm)
I have loudspeaker measurement software at my disposal and just came to realise what an interesting experiment it would be to measure the frequency response characteristics of the phones that i currently own.
I'm not 100% happy with the measurements, i cant help but feel that measuring earphones are not as simple as measuring loudspeakers, so take these measurements with a pinch of salt. Even slight changes in the way i positioned the phones on my mic caused very severe changes in frequency response measured. I suspect the lower frequency range to be quite inaccurate since low frequency response really depends on getting the right seal, and i did not even come close to that with these measurements (though i did try).
Methodology: I used a calibrated condenser measurement mic connected to a preamp to my laptop for processing. I used MLS software to take the frequency response measurements. all earphone measurements were done with the earphone tubes pressed against the mic, with each channel measured and recorded(left and right measurements for each phone are below). With the Westone UM2, i used the triflange sleeve inverted to cover the tip of my mic, creating a psuedo-seal. I did the same with foam tips for the Shure e2c, and used nothing for the Audio Technica CM7 since its an earbud type phone and creating a seal against the mic(or at least trying to get a seal) was impossible. For open headphones, the mic was located about 1cm away from the speaker, between the ear cups. The same was also done for closed headphones. I have also included an ad-hoc measurement i took of my (crappy) laptop speakers as reference. That measurement was taken about 5mm away from the speaker.
Its quite late now where i am and i just uploaded the measurements so i'll let you guys take a look and rejoin the conversation tomorrow or something. Enjoy!
Westone UM2:
Right Channel:
Left Channel:
Shure E2C:
Right Channel:
Left Channel:
Audio Technica CM5
Right Channel:
Left Channel:
Compaq Presario 1714AP Built-in JBL Pro Speakers
Right Channel:
Left Channel:
New Measurements:
Sennheiser PC150
Right Channel:
Left Channel:
Sennheiser HD590:
Right Channel:
Left Channel:
Sennheiser HD650:
Right Channel:
Left Channel:
Beyerdynamic DT770-80:
Measurement taken when NOT worn,Right Channel:
Measurement taken when NOT worn,Left Channel:
Beyerdynamic DT770-80:
Measurement taken when worn,Right Channel:
Measurement taken when worn,Left Channel:
Audio Technica CM-5
Shure E2C
Westone UM2
Sennheiser PC150
Sennheiser HD590
Sennheiser HD650
Beyerdynamic DT770 (80 ohm)
I have loudspeaker measurement software at my disposal and just came to realise what an interesting experiment it would be to measure the frequency response characteristics of the phones that i currently own.
I'm not 100% happy with the measurements, i cant help but feel that measuring earphones are not as simple as measuring loudspeakers, so take these measurements with a pinch of salt. Even slight changes in the way i positioned the phones on my mic caused very severe changes in frequency response measured. I suspect the lower frequency range to be quite inaccurate since low frequency response really depends on getting the right seal, and i did not even come close to that with these measurements (though i did try).
Methodology: I used a calibrated condenser measurement mic connected to a preamp to my laptop for processing. I used MLS software to take the frequency response measurements. all earphone measurements were done with the earphone tubes pressed against the mic, with each channel measured and recorded(left and right measurements for each phone are below). With the Westone UM2, i used the triflange sleeve inverted to cover the tip of my mic, creating a psuedo-seal. I did the same with foam tips for the Shure e2c, and used nothing for the Audio Technica CM7 since its an earbud type phone and creating a seal against the mic(or at least trying to get a seal) was impossible. For open headphones, the mic was located about 1cm away from the speaker, between the ear cups. The same was also done for closed headphones. I have also included an ad-hoc measurement i took of my (crappy) laptop speakers as reference. That measurement was taken about 5mm away from the speaker.
Its quite late now where i am and i just uploaded the measurements so i'll let you guys take a look and rejoin the conversation tomorrow or something. Enjoy!
Westone UM2:
Right Channel:
Left Channel:
Shure E2C:
Right Channel:
Left Channel:
Audio Technica CM5
Right Channel:
Left Channel:
Compaq Presario 1714AP Built-in JBL Pro Speakers
Right Channel:
Left Channel:
New Measurements:
Sennheiser PC150
Right Channel:
Left Channel:
Sennheiser HD590:
Right Channel:
Left Channel:
Sennheiser HD650:
Right Channel:
Left Channel:
Beyerdynamic DT770-80:
Measurement taken when NOT worn,Right Channel:
Measurement taken when NOT worn,Left Channel:
Beyerdynamic DT770-80:
Measurement taken when worn,Right Channel:
Measurement taken when worn,Left Channel: