Sennheiser HD 25 – Professional Closed-Back Monitoring Headphones

Overview

The Sennheiser HD 25 is a professional closed-back monitoring headphone designed for broadcast, live sound, DJ performance, field recording, and studio monitoring. Renowned for its exceptional durability, high maximum SPL handling, and outstanding passive noise isolation, it has become an industry standard for demanding professional audio applications.

Its lightweight construction, split headband, and rotatable ear cup provide excellent comfort and flexibility for extended monitoring sessions.

Features

• Closed-back monitoring design
• Excellent passive ambient noise isolation
• High maximum sound pressure handling
• Accurate and balanced sound reproduction
• Lightweight yet highly durable construction
• Rotatable right ear cup for single-ear monitoring
• Replaceable cable and ear pads
• Optimized for DJ, broadcast, studio, and ENG applications

Technical Specifications

• Acoustic Principle: Closed-back
• Ear Coupling: Supra-aural (On-ear)
• Transducer Principle: Dynamic
• Frequency Response: 16 Hz – 22,000 Hz
• Impedance: 70 Ω
• Sensitivity: 120 dB SPL (1 kHz, 1 Vrms)
• Maximum Input Power: 200 mW
• Total Harmonic Distortion (THD): <0.3 % (1 kHz)
• Passive Noise Attenuation: Approx. 30 dB
• Cable Length: 1.5 m (coiled cable)
• Cable Type: Detachable, single-sided
• Connector: 3.5 mm stereo mini jack
• Adapter: 3.5 mm to 6.3 mm
• Weight (without cable): Approx. 140 g

Package Contents

• Sennheiser HD 25 Headphones
• 1.5 m detachable coiled cable
• 3.5 mm to 6.3 mm adapter
• User documentation