Grado Signature S550

Grado Signature S550 – Engaging Open-Back Headphones with Balanced Precision

The Grado Signature S550 brings the core values of the Signature Series into a more accessible and streamlined model. It combines musical presence with technical precision, delivering a clear, balanced, and energetic listening experience designed for extended listening sessions.

The S550 is tuned to preserve Grado’s characteristic openness and immediacy, while presenting sound in a more refined and natural way. The result is an engaging reproduction that handles both subtle details and dynamic passages with clarity and control.

Features

Open-back design for a natural and airy sound
Newly developed 50 mm dynamic driver with high resolution and control
Balanced and engaging sound signature
Detachable Signature Silver cable for flexibility and durability
B Cushions as standard for balanced comfort and sound presentation
Compatible with S, F, L, and G Cushions for sound and fit customization
Adjustable headband for long-lasting comfort and stable fit
Hand-assembled in Brooklyn

Sound Performance

The S550 features a newly developed 50 mm dynamic driver focused on balancing detail, dynamics, and musicality. The design ensures fast response and precise articulation, while maintaining a cohesive and relaxed presentation.

The soundstage is open and direct, with clear midrange presence, controlled bass, and smooth yet detailed treble. This makes it suitable for both intimate recordings and more complex productions.

Detachable Cable

The S550 uses a detachable cable system with a 4-pin mini XLR connection. This provides greater flexibility, improved durability, and easy cable replacement or customization.

The cable is lightweight and flexible, reducing strain during use while maintaining signal clarity and dynamic response.

Ear Pads and Customization

The headphones come with B Cushions as standard, offering a balanced combination of comfort and sound performance. The model is compatible with multiple cushion types within the Grado range, allowing users to adjust soundstage, comfort, and fit.

Comfort and Build

The adjustable headband is designed to distribute weight evenly, ensuring comfort during long listening sessions. The construction is built for durability and everyday use.

The S550 is hand-assembled in Brooklyn, ensuring consistent quality and craftsmanship.

Specifications

Driver Type: Dynamic
Design: Open-air (Open-back)
Driver Size: 50 mm
Frequency Response: 6 Hz – 44 kHz
Total Harmonic Distortion: < 0.2% @ 100 dB
Sensitivity: 112 dB (1 mW)
Impedance: 38 ohms
Driver Matching: 0.05 dB
Weight: 335 g
Cable: Signature Silver, detachable
Headphone Connector: 4-pin mini XLR (balanced)
Source Connector: 3.5 mm with 6.3 mm adapter
Ear Cushions: B Cushions