Technical Data
Specifications CX 400 black CX 400 silver
UPC No.
615104125391 615104125483
Housing color black silver
Design High quality, noise-isolating
ear canal phones
High quality, noise-isolating
ear canal phones
Transducer principle Dynamic, closed Dynamic, closed
Frequency response 17 – 21,000 Hz 17 – 21,000 Hz
Impedance 16 O 16 O
THD < 0.2 % < 0.2 %
Sound pressure level
(1 kHz, 1 Vrms)
113 dB 113 dB
Weight (without cable) 0.1 oz 0.1 oz
Connecting cable length 2 ft. with 3 ft. extension 2 ft. with 3 ft. extension
Plug 1/8 in. plug (angled) 1/8 in. plug (angled)
Delivery includes ear adapter set (S/M/L)
cable clip
cable winder
carry case
extension cable
ear adapter set (S/M/L)
cable clip
cable winder
carry case
extension cable
Languages German, English, French, Spanish, Italian, Dutch
Always purchase from an authorized Sennheiser dealer.
Sennheiser Electronic Corp., One Enterprise Drive, Old Lyme, CT 06371 • (860) 434-9190 • www.sennheiserusa.com ©2007