Manufacturer refurbished by Sennheiser, these HD 600 sit in the brand’s long-running audiophile line-up and compete with other open-back reference staples such as the Beyerdynamic DT 880 and AKG K701. “Manufacturer refurbished” typically means the headphones have been returned or serviced, then fully tested and restored to proper working order; you may see light cosmetic marks, but performance should meet the maker’s spec.
Who are the HD 600 actually for?
If you want a neutral, analytical presentation for mixing, mastering, or picking apart recordings, the HD 600’s reputation is well earned. The open-back design trades isolation and big sub-bass for a wide, airy soundstage and more natural treble, which helps with placement and detail. They’re also a calmer listen than many “fun” tuned headphones, so long sessions are less fatiguing—assuming you can listen in a quiet room.
- Open-back tuning: more spacious imaging, but sound leaks in and out
- Reference voicing: prioritises clarity and balance over heavy bass
