Grado Signature S550 Headphone optical 4" Net weight 578g (1

4" Net weight 578g (1

gloss-matte spatters on magnesium

With its larger diaphragm compared to typical 12mm or 14mm planar drivers

unbalanced

Weight (without cable) Approx

Grado Signature S550 Headphone optical 4" Net weight 578g (1The 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