Sennheiser Announces CXC 700 Noise Cancellation Headphones
Sennheiser is expanding its broad line of noise-cancelling travel headphones with the CXC 700 ear-canal phone. The CXC 700, which was previewed at the Consumer Electronics Show earlier this year, features Sennheisers exclusive NoiseGard /digital system, which allows travelers to choose from three noise-cancelling modes optimized to reduce low, medium and high frequency noise. The CXC 700 is now available at select consumer electronics retailers with an MSRP of $319.99, but a quick look at street pricing shows they can be had for $229.95 shipped.
Mode 1 is effective on low-frequency noise in particular (100 to 400 Hertz), such as engine noise from trains, buses or small passenger planes. Mode 2 focuses on cancelling noise in the medium frequency range (400 to 3,000 Hertz), which is caused mostly by air-conditioning systems in large passenger aircraft or office buildings. Mode 3 has a particularly wide frequency range (100 to 3,000 Hertz), and combines the noise-cancelling effect in the medium and low-frequency ranges. As a result, background noise with different noise components–such as that experienced in airports, railway stations or underground stations–can be effectively suppressed, although with slightly lower noise-cancelling performance than the first two modes.
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