Conclusion: The Sony MDR-EX71SL earbuds offer great value and performance and can be classified as a mid-range product. I would recommend these earbuds for everything but sports activity. They are great for studying in noisy places, blocking out noise on public transportation and iPod listening while walking around campus. I won't be using these for sports activity.
Excerpt: If you like bass, you'll love the Sony MDR-EX71 headphones. Online opinions say that the bass is too thick and muddy and that there are no highs, but they're only half right. Our oscilloscope tests show that the bass is quite clean, not muddy in the least, and also that it extends noticeably deeper than that of other canal phones. The MDR-EX71s are actually a very good companion for players that are weak in the bass.
Conclusion: La conception bien pensée, la présence d’un système d’isolation phonique et la bonne acoustique des écouteurs de Sony permettent aux MDR-EX71SL de se démarquer. Ils constituent une bonne alternative au casque traditionnel et se branchent sur tous les baladeurs.