AdamCalifornia
Banned
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- Jul 29, 2005
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I am confused by reading of the specs printed on
the boxes which came with my headphones.
What strikes me is that the specs say that
the Total Harmonic Distortions of
Beyer's DT880's and Sennheiser's HD595 are les than 0.2 and 0.1 respectively!
Does this fact mean that the DT880s distort more than the HD595s?
What I've read is that sometimes companies measure those distortions at
'different levels of power, frequencies and SPLs'. So I f we made
a common denominator would the THD of the the DT880s be still less than 0.2?
Has anyone actually measured the THDs of those two headphones?
How aboot other Sennheisers HD580 - HD650? How about AKG K701 or Sony SA5000?
Here are the relevant specs:
Beyerdynamic DT880:
Nominal impendance: 250 Ohm
Nominal SPL: 96 dB
Power handling capacity: 100 mW
Nominal THD < 0.2%
Sennheiser HD595:
Impendance: 50 Ohm
Max SPL at 1kHz, 1Vrms: 112 dB
Long term max. input power: 500 mW
THD at 1kHz, 10dB SPL < 0.1%
Also in the Sennheiser HD595 case the following is printed inside the box:
- Highly constant, compressed cellulose fleece reduces total harmonic distortion <=====
- Special diphragm geometry reduces intermodulation distortion
Note that Sennheiser elaborates on the issue of the THD, while Beydynamic is quiet about it!
Clearly both Sennheiser and Beyerdynamic use different language
and perhaps diffrent measurements to address their THDs.
See you,
Adam
the boxes which came with my headphones.
What strikes me is that the specs say that
the Total Harmonic Distortions of
Beyer's DT880's and Sennheiser's HD595 are les than 0.2 and 0.1 respectively!
Does this fact mean that the DT880s distort more than the HD595s?
What I've read is that sometimes companies measure those distortions at
'different levels of power, frequencies and SPLs'. So I f we made
a common denominator would the THD of the the DT880s be still less than 0.2?
Has anyone actually measured the THDs of those two headphones?
How aboot other Sennheisers HD580 - HD650? How about AKG K701 or Sony SA5000?
Here are the relevant specs:
Beyerdynamic DT880:
Nominal impendance: 250 Ohm
Nominal SPL: 96 dB
Power handling capacity: 100 mW
Nominal THD < 0.2%
Sennheiser HD595:
Impendance: 50 Ohm
Max SPL at 1kHz, 1Vrms: 112 dB
Long term max. input power: 500 mW
THD at 1kHz, 10dB SPL < 0.1%
Also in the Sennheiser HD595 case the following is printed inside the box:
- Highly constant, compressed cellulose fleece reduces total harmonic distortion <=====
- Special diphragm geometry reduces intermodulation distortion
Note that Sennheiser elaborates on the issue of the THD, while Beydynamic is quiet about it!
Clearly both Sennheiser and Beyerdynamic use different language
and perhaps diffrent measurements to address their THDs.
See you,
Adam