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.
Key Features:
Very lightweight
Effective attenuation of background noise minimizes risk of feedback
High maximum sound pressure level
85 Ω nominal impedance
Tough, detachable stranded steel cable
Neodymium ferrous magnet systems and lightweight copper-coated aluminium voice coils
for fast transient response
Extremely comfortable for extended listening
Great for mixing in noisy environments
Superior gain in any environment
Ensures universal compatibility
Easily field-servicable
Accurate sound reproduction
Technical Data
Frequency response 30–16,000 Hz -3 dB
Transducer principle dynamic, closed
Nominal impedance 85 Ω
Characteristic SPL at 1 kHz 100 dB ± 2 dB
Load rating 200 mW
THD < 0.4 %
Ear coupling supraural
Contact pressure approx. 3 N
Weight (without cable) 4.05 oz
Connector 1/8" stereo mini jack plug with adapter to 1/4" stereo jack plug
Connection cable 3 m, detachable dual-sided steel cable