The HD 25-SP II are closed dynamic headphones for monitoring, recording and outdoor applications. They are a lower-cost alternative to the HD 25 II, featuring a simpler headband and a slightly different capsule design.

Features:
Very lightweight and comfortable, even if used for long periods
High maximum sound pressure level
85 Ohm nominal impedance for universal compatibility
Tough, detachable OFC cable
Neodymium ferrous magnet systems and lightweight aluminium/copper voice

Delivery Includes:
1 HD 25-SP II

Technical Data:

Nominal impedance 60 Ohm
Characteristic SPL 100 dB +/- 2 dB
Load rating 0,2 W
Contact pressure ca. 3 N
Weight w/o cable 115 g
Jack plug 3,5/6,3 mm stereo
Transducer principle dynamic, closed
Ear coupling supraaural
Cable length 3 m
THD, total harmonic distortion <0,4 %
Frequency response (headphones) 30.....16000 Hz (-3 dB)

Profile:
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 OFC cable with 3.5 mm stereo jack plug and adaptor to 1 /4 ” (6.3 mm) stereo jack plug.