Sennheiser PXC 300 review (headphones)

We evaluated the Sennheiser PXC 300s' noise-canceling (NC) performance on New York City's subways and buses. The din reduction wasn't up to the standards set by full-size headphones that completely enclose the ears, but it's definitely in the ballpark. Engaging the NC circuitry significantly boosted the PXC 300s' volume level and accentuated the midrange frequencies, which heightened the apparent NC effect. That volume gain was also appreciated because the PXC 300 wouldn't play particularly loud with our iPod. Sound quality was above average, with good bass power and definition. The PXC 300s, like many other noise-canceling headphones, produce acoustic pressure on the eardrums. Listeners sensitive to this effect may find it mildly uncomfortable.

We compared the Sennheiser PXC 300s with one of our favorite NC models, AKG's K28 NCs ($160). The Sennheiser's sound was clearly more detailed with superior bass definition, but the AKG produced more bass and could play a lot louder than the PXC 300s. Noise-canceling abilities on both 'phones were excellent.