The story of this device
Koss's open-back flagship headphone, first teased in 2019 and finally released in 2026. It uses stainless steel, aluminum, and velour ear pads, and connects through a detachable mini-XLR cable.
Koss
A/550
Koss · Audio & MP3 players · Released in 2026 · A/550
Open-back flagship · 12Hz-22kHz · 287g · Mini-XLR · $349.99
Open this device in the web appDevice information
- Brand
- Koss
- Model
- A/550
- Release year
- 2026
- Category
- Audio & MP3 players
Specifications
- Connectivity
- Detachable mini-XLR cable (2m, 3.5mm)
- Media
- RLX44 driver, 54 ohm, 92dB SPL, 12Hz-22,000Hz
- Weight
- 287g (without cable)
- Notable
- Open-back, stainless steel/aluminum/velour, magnetic ear pads