Grado Signature S550 Headphone (Open Box) desktop up to 384kHz-32bit/DSD128） 3

up to 384kHz-32bit/DSD128） 3

Silicone pads on all three contact points of the base ensure a secure grip while protecting your furniture from scratches

Ergonomics Neck hanging design

560mW@600Ω

A breakthrough core technology developed by HIFIMAN and the first of its kind in headphone application

Grado Signature S550 Headphone (Open Box) desktop up to 384kHz-32bit/DSD128） 3The Grado Signature S550 brings the core values of the Signature Line into a more streamlined and approachable form. Designed for listeners who value musical engagement as much as technical performance, the S550 delivers clarity, balance, and energy in a headphone built for long, immersive listening sessions. At its heart, the S550 is tuned to preserve the immediacy and openness Grado is known for, while offering a refined presentation that remains