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The HD 25 SP are closed dynamic headphones for monitoring, recording and outdoor applications. They are a lower-cost alternative to the HD 25, featuring a simpler headband and a slightly different capsule design.
Rugged closed dynamic headphone. Max. SPL 120 dB, frequency response 30 Hz to 16 kHz, THD < 0.4 %, nominal impedance 65 ., load rating 0.2 W. 3 m steel cable with 3.5 mm stereo jack plug and adaptor to 1 /4 " (6.3 mm) stereo jack plug.
