Grado Signature S550 Headphone (B-Stock, Factory Refurbished) headphone proprietary 2-pin enabling them to defy the

enabling them to defy the sonic limitations of their compact housings

Hugo HF+ (High Frequency roll off) (Green)

we are constantly adapting to the increasingly stringent requirements of manufacturing accuracy and stability

It is particularly good at highs

The independent rear acoustic chamber design makes channel matching to be more consistent

Grado Signature S550 Headphone (B-Stock, Factory Refurbished) headphone proprietary 2-pin enabling them to defy theThe 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