How £1,000 headphones are made: A Sennheiser factory tour
This machine is used to test the frequency response of a finished headphone. A sine wave is played through the headphones gradually rising from 10Hz upwards. A mechanical ear (the round silver thing in the photo) passes the sound it hears from the headphones to a computer, where results are measured for accuracy.
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Anonymous 29 July, 2010 08:11
Time changes every second,but there is always something remain its existence as well as bose headphones. Bose on ear headphones changes more beautiful,fashionable,and colorful.but still with high quqlities!
anonymous 15 January, 2013 19:02
Bose are for not for audiophiles. Period. Go to any site that aims to educate and you will find their name under 'products to avoid'.
I'm sure they would entertain someone who has never heard a headphone before, or who doesn't care to investigate fidelity, but this comment has no place next to Sennheiser. And for those who don't get it, will never get it. Which is unfortunate since they are missing out.