Sennheiser HD6XX

Sennheiser HD6XX Open-Back Professional Headphones – Black

The Sennheiser HD6XX is the result of a collaboration between Sennheiser and the audiophile community at Massdrop, delivering the legendary HD 650 sound signature at an accessible price. With its open-back, dynamic design and carefully tuned drivers, the HD6XX provides natural, spacious, and highly detailed audio that has made it a benchmark among audiophiles worldwide.

Crafted for long listening sessions, the lightweight build, plush velour earpads, and balanced frequency response ensure both comfort and accuracy. Ideal for home listening, mixing, and professional use, the HD6XX remains one of the most celebrated reference headphones in its class.

Key Features

• Based on the iconic Sennheiser HD 650 with a refined, community-driven tuning
• Open-back, dynamic design for natural soundstage and lifelike imaging
• Extended frequency response from 10 Hz – 41 kHz with low distortion (<0.05% THD)
• 300-ohm impedance optimized for headphone amplifiers and high-quality audio sources
• Detachable 1.8 m cable with 3.5 mm plug (includes adapter for 6.3 mm connections)
• Lightweight design (260 g without cable) with velour earpads for extended comfort
• Built in Romania with premium quality and durable materials

Specifications

• Transducer Principle: Open-back, dynamic
• Frequency Response: 10 Hz – 41 kHz
• Impedance: 300 Ohms
• Total Harmonic Distortion (THD): <0.05%
• Sensitivity: 103 dB (1 kHz, 1 Vrms)
• Weight: 260 g (without cable)
• Cable: 1.8 m detachable cable, 3.5 mm plug with 6.3 mm adapter included
• Color: Midnight Blue / Black

What’s Included

• HD6XX headphones
• 1.8 m detachable cable
• 3.5 mm plug with 6.3 mm adapter
• Documentation