Grado SR125x Headphone, Wired, Dynamic Open-Back

Hear Your Music Step-Forward—Livelier, Clearer, More Intimate

Slip on the Grado SR125x and you’re immediately in the room with the performers. These open-back, on-ear classics deliver that unmistakable Grado energy—fast transients, vivid mids, and airy treble—so vocals soar, guitars bite, and micro‑details you’ve missed finally surface. If you crave the immediacy of a live set without the fatigue, the SR125x is purpose-built to make your favorite tracks feel newly alive.

Why Audiophiles Choose This Product

• Bold, engaging sound: An upfront, detailed presentation that spotlights vocals and strings with speed and clarity. Consumer Reports’ lab tests characterize the SR125x’s sound quality as excellent overall, with an open, lively character that preserves room ambience.
• X Series driver engineering: Fourth‑generation 44 mm drivers use a more efficient magnetic circuit, a lower-mass voice coil, and a reconfigured diaphragm to reduce distortion and preserve harmonic integrity.
• Comfort you can wear for hours: The updated headband adds extra cushion, while breathable S‑cushion foam pads keep things light and airy—perfect for long listening in quiet spaces.
• Easy, plug‑and‑play versatility: With 38 ohms impedance and 98 dB SPL at 1 mW, the SR125x reaches satisfying levels from laptops, USB‑C dongles, and portable players. The cable ends in a 3.5 mm plug, and a 6.35 mm adapter is included for home gear.
• Hand‑built heritage: Each pair is assembled by hand in Brooklyn, with drivers matched to 0.1 dB for precise stereo imaging—a level of care rare at this tier.

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What’s Included

• Grado SR125x on‑ear open‑back headphones (Prestige X Series; 44 mm dynamic drivers, S‑cushion pads)
• 3.5 mm terminated cable with 6.35 mm (1/4 in) adapter
• Grado warranty and story sheet
  In-box contents per Grado’s official materials.

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Technical Specifications

Specification	Value	Notes
Product Type	Wired	3.5 mm TRS termination with 6.35 mm adapter included.
Transducer	44 mm dynamic	X Series 4th‑gen driver architecture.
Operating Principle	Open‑back (open air)	Natural, spacious presentation; not for noise isolation.
Frequency Response	20–20,000 Hz	Full-range listening with airy top end.
Sensitivity	98 dB SPL (1 mW)	Reaches healthy volume from portable sources.
Impedance	38 ohms	Friendly to laptops, dongle DACs, and DAPs.
Driver Matching	0.1 dB	Enhances stereo imaging and center focus.
Cable	8‑conductor OFC, straight Y	Super‑annealed copper for signal purity; approx. 68 in length.
Earpads	S‑cushion (on‑ear)	Breathable foam; pad‑rolling optional.
Weight	Not specified by manufacturer	Lightweight polycarbonate build supports long sessions.

Specifications are per Grado’s official SR125x page unless noted; cable length per Crutchfield.

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Professional Recognition

• Reviews: Consumer Reports rates the SR125x’s sound quality in the “excellent” range, noting an open, lively presentation with strong detail retrieval.
• Heritage: Grado has hand‑built headphones in Brooklyn since 1953; the SR125x page underscores this lineage and hands‑on assembly.
• Innovation: The Prestige X Series introduced the 4th‑gen X drivers, upgraded cables, and a cushioned headband across the range for better efficiency and comfort.

Community notes: Owners often praise the SR125x’s detail and immediacy; common tweaks include swapping pads for a different feel or presentation. Some find the stock cable thick and the on‑ear fit personal—pad rolling is a popular solution.

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The Bottom Line

If you want a wired headphone that makes music feel close, alive, and honest, the Grado SR125x delivers—combining the brand’s signature, forward‑leaning clarity with modern driver refinements and all‑day comfort upgrades. It’s easy to drive, thoughtfully hand‑built, and tuned to highlight the emotion in your favorite recordings. For the listener who values energy, detail, and that “I’m right there” sensation, the SR125x is a confident, time‑tested choice.

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Product-Specific Guidance for Headphones

• Connectivity: Wired, single‑ended 3.5 mm plug with included 6.35 mm adapter. No Bluetooth or ANC.
• Amplification: With 38 ohms impedance and 98 dB sensitivity, an external amp isn’t required; quality sources (dongle DACs, DAPs) can enhance dynamics and staging.
• Sound Signature: Classic Grado—lively mids, crisp treble, and quick, articulate bass for an engaging, front‑row presentation. Lab measurements and listening notes vary by source material; expect openness and speed over heavy low‑end emphasis.
• Comfort: On‑ear S‑cushions are breathable and light; as with most on‑ears, pad choice and fit are subjective. Owners sometimes experiment with pads to tailor comfort and tone.

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Notes on use

• Open‑back design leaks sound and lets external noise in; the SR125x is best in quiet rooms, not for commuting.

Research sources: Official specs and features from Grado; package contents from Grado’s regional site; cable length and inclusions verified via Crutchfield; X Series launch details via What Hi‑Fi; performance characterization from Consumer Reports; community feedback from r/Grado discussions.