Sennheiser HD 490 PRO – Professional Open-Back Studio Reference Headphones

Overview

The Sennheiser HD 490 PRO is a professional open-back studio reference headphone designed for critical mixing, mastering, audio editing, and music production. Its open acoustic architecture delivers an exceptionally wide soundstage, precise stereo imaging, and an uncolored frequency response, allowing engineers and producers to make confident monitoring decisions.

Built for extended studio sessions, the HD 490 PRO combines lightweight ergonomics, replaceable ear pads, and outstanding acoustic accuracy for demanding professional workflows.

Features

• Open-back acoustic design for an expansive and natural soundstage
• Neutral, uncolored frequency response
• Precise stereo imaging and spatial localization
• Controlled, accurate low-frequency reproduction
• Lightweight ergonomic construction for long studio sessions
• Two interchangeable ear pad sets for Mixing and Producing applications
• Extremely low harmonic distortion for critical monitoring
• Optimized for professional mixing, mastering, editing, and critical listening

Technical Specifications

• Acoustic Principle: Open-back
• Ear Coupling: Circumaural (Over-ear)
• Transducer Principle: Dynamic
• Transducer Size: 38 mm
• Frequency Response: 5 Hz – 36,100 Hz (-10 dB)
• Impedance: 130 Ω (1 kHz)
• Sensitivity:
• 105 dB SPL (1 kHz / 1 Vrms)
• 96 dB SPL (1 kHz / 1 mW)
• Maximum Sound Pressure Level: 128 dB SPL (1 kHz @ 5% THD)
• Total Harmonic Distortion (THD): <0.2 % (1 kHz, 100 dB SPL)
• Power Rating: 300 mW (100 h, noise IEC 60268)
• Cable Length: 1.8 m
• Connection: Wired
• Connectors: 3.5 mm and 6.3 mm adapter
• Weight (without cable): 260 g
• Operating Temperature: 0°C to +50°C
• Storage Temperature: -25°C to +70°C
• Operating Humidity: 10–80% (non-condensing)
• Storage Humidity: 10–90%

Package Contents

• Sennheiser HD 490 PRO Headphones
• 1.8 m detachable cable
• 3.5 mm to 6.3 mm adapter
• Mixing Ear Pads
• Producing Ear Pads
• Quick Guide
• Safety Guide