Based on 4 r/BuyItForLife mentions

HD Open-Back Headphones

$239.95

Sennheiser

Powered by Sennheiser's proprietary transducer technology for truly excellent sound performance, the open back HD 599 delivers impressively natural spatial performance. Topping Sennheiser's 500 series, the full sized premium headphone offers near-audiophile levels of sound quality and exceptional wearing comfort thanks to the large ear cups and soft replaceable ear pads. Finished in a distinctive Ivory color, with matte metallic detailing and a brown stitched headband, it is a great choice for those wishing to enjoy entertainment with sophisticated sound, design and build quality.

Reddit mentions

  • “I have been loving my Sennheiser HD 550s for about 15 years now. I've bought 2 pairs and plan to continue using them for the foreseeable future. They are "open air" meaning they…”
  • “I've got 16 year old Sennheiser HD500s with a detachable cord. The drivers went out before the cable or the jack did. Prior to dropping money on that first set of Sennheisers, I'd…”
  • “The short is, there’s a lot of good headphones out there. If you don’t have a vested interest in TOTL audio quality the difference of a $150 to $400 headphone isn’t going to mean…”
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Product details
Headphone Cup Type
Over-ear
Body Part Use
Head, Ears
Noise Cancellation Type
No (active noise cancellation)
Performance Highlights
Modular design
Driver Technology
Dynamic
Connectivity Technology
Wired
Compatible Devices
Premium audio gear (such as Sennheiser's own HDV 820), Balanced sources, Hi-fi gear, Mic-enabled jacks
Ports and Interfaces
3.5mm jack
Cable Length
1.8 m
Connectivity Highlights
Detachable Cable
Earpad Material
Synthetic velour
Driver Size
38mm
Frequency Response
6 Hz to 39.5 kHz
Headphone Impedance
150 Ohm
Sensitivity
106.7 dB / 1 V RMS
Sound Output
Stereo
Audio Highlights
Low distortion, High-range extension (treble and sub-bass regions)
Maximum Input Power
106.7 dB (Max Sound Pressure Level)
Total Harmonic Distortion
<0.2% (1kHz / 90dB SPL)
Earcup Style
Open-back
Earcup Type
Open-back
Recommended Use
Music listening, Gaming
Highlighted Uses
Gaming, Daily listening
Suitable For Kids
No (volume limiting / child-safe)
Typical Users
Audiophiles
Style
Over-ear
Weight
237 g
Dimensions
9.8 CM (height)
Foldable
No
Material
Synthetic leather (headband), Metal mesh (earcup covers)
Monaural
No
Pattern
Tightly patterned (metal mesh on earcups)
Manufacturing
Made in Ireland
Assistant Support
No (integrated voice assistant)
Included Accessories
Drawstring bag
Supported Accessories
Replacement parts