Sennheiser HD 414 X

These HD 414 X (also written HD414X) dynamic headphones were manufactured by the Sennheiser Corporation. Here are some of its features and specifications.

Frequency Response: 20 Hz to 20 kHz
Impedance: 2000 Ω
Nominal SPL (DIN 45 580): 94 dB
Mass without cable: 125 g
Cable length: 3 m