Grado Signature S550 Headphone optical and a lightweight ergonomic design

and a lightweight ergonomic design for ease of use

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

unbalanced

Weight (without cable) Approx

35mm port Power Supply Parameters Power supply DC 12V/2A Battery capacity No battery Audio Parameters     Parts of performance and parameters of Line-out output (RCA

Grado Signature S550 Headphone optical and a lightweight ergonomic designThe 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