Headphones — Grado Labs Signature S950

The Signature S950 is an open-back over-ear headphone from Grado Labs, a family-run American manufacturer with a distinctive house sound built up over decades of continuous, largely hand-assembled production in Brooklyn, New York. The Signature series sits toward the top of Grado's extensive headphone hierarchy, reflecting the brand's most refined current driver and housing engineering.

Key specs that matter

Frequency response spans an exceptionally wide 3.5Hz to 51,500Hz within plus-or-minus 10dB, an extraordinary bandwidth extending far beyond conventional audible range in both directions. Maximum sound pressure level is 117dB SPL at 1kHz at 5% THD, with sensitivity at 115dB SPL at 1kHz/1mW - both notably high figures making the Signature S950 easy to drive to considerable volume. Impedance is 38 ohms at 1kHz. Connection is wired via a 6.3mm connector.

Sound and use context

Expect the immediate, dynamic and forward-sounding character Grado's house sound has been celebrated for across decades - the exceptionally wide bandwidth and high sensitivity combination reflects the brand's characteristic emphasis on energy, presence and genuine excitement in the presentation, a distinctive alternative to the more laid-back tonal balance some rival open-back designs pursue.

Pairing

The 38 ohm impedance and high 115dB sensitivity mean the Signature S950 is easy to drive from a wide range of sources, though it rewards a dedicated headphone amplifier capable of extracting its full dynamic character.

Alternatives

Grado Labs' broader headphone hierarchy, spanning both more accessible and even more elaborate models sharing the same fundamental house sound, offers alternatives for buyers wanting either a different price point or a further-refined expression of Grado's characteristic tonal signature. Grado's continued hand-assembly of its headphone range in Brooklyn across multiple generations of the same family reflects a rare manufacturing continuity within the modern personal-audio industry, one many longtime Grado owners specifically value alongside the sound itself. Recommended for listeners specifically seeking Grado's characteristic energetic, forward house sound in a refined package. A fine, characterful choice overall for Grado enthusiasts. Recommended overall for Grado enthusiasts specifically. A worthy pick overall.