I bought these when my Klipsch S4i started dying (volume is cutting out on the left channel). Fair enough – 7+ years is a long service life for a pair of inexpensive earbuds. My first priority was compatibility with my 3G iPod Shuffle, which needs a 3-button remote to operate. The second was to get a sonic upgrade – I thought 8 years was a long time for headphone technology to improve. The third priority was form factor – I loved how small the Klipsch S4i and the iPod Shuffle were together, so I didn't consider non-earbud headphones for replacements...

The Sennheiser Expression series was an inexpensive, lightweight entry-level lineup of open, supra-aural (on-ear) headphones from the early 1990s comprising the HD 320 / 330 / 340 models. The headphones were designed for home listening and they were based on the same design, with different-colored exterior foam and plastic housings to distinguish each model (bright red foam, grey angled plastic grill, grey circular-holed grill, respectively).   This was my first "good" headphone, purchased from a musical instrument store in 1994. Until then, I had...

Introduction First, the set of headphones I am reviewing is 12 years old (predating the "i" and "e" series drivers and larger cups) and I listen to them almost every day, so they've had plenty of burn-in. I recommend listening to them for a few weeks at least before making any sonic judgments – mine took at least a few months to settle into their final sound. They sounded pretty rough and underwhelming when I received them from Alessandro. For reference, I listened to a set of Sennheiser HD 320 headphones for about 10 years before switching to these...