Sennheiser HD 580 Precision earphones
Article Abstract:
Sennheiser's HD 580 Precision earphones, priced at $349, feature comfortably designed ear cushions and headband. The earphones have a rated impedance of 300 ohms and weigh 280 grams. The HD 580 Precision earn an extremely enthusiastic recommendation both for their performance and good value.
Publication Name: Audio
Subject: Music
ISSN: 0004-752X
Year: 1996
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Sennheiser HD-540 Reference II earphones
Article Abstract:
Sennheiser's $195 open-ear HD-540 Reference II phones are well-designed and extremely comfortable, but the usual isolation deficiencies of open-ear headphones are present in this unit. Nevertheless, the HD-540's value and even frequency response earn the headphones a recommendation.
Publication Name: Audio
Subject: Music
ISSN: 0004-752X
Year: 1992
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Sennheiser HDC451 noise-cancelling earphones
Article Abstract:
The Sennheiser HDC451 earphones use an electroacoustical technology called NoiseGard to cancel noise from outside sources. They are easy to operate ad very useful for listening to music when traveling. The price is $269.
Publication Name: Audio
Subject: Music
ISSN: 0004-752X
Year: 1995
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