GRADO / SR325 - Classic Series

The GRADO "SR325" is the flagship model of the Classic Series, combining a precision-machined aluminum housing with a new-generation 44mm X2 dynamic driver. It fuses the immense sense of openness characteristic of the traditional open-back design with exceptional speed and precise detail, delivering studio-grade sound with remarkable clarity.

■ Precision, High-Speed ​​Sound Delivered by Aluminum
・ Precision-machined aluminum is used for the housing material. The superior rigidity unique to a metal enclosure thoroughly suppresses unwanted resonance, achieving an incredibly fast and beautifully controlled sound attack. This enables outstanding clarity, a sense of speed, and intricate detail reproduction that stands out even among headphones in the same price range.

■ Natural, Open Soundstage via Traditional Open-Back Design
・ We have pushed the open-back structure—the very identity of GRADO—to its limits. By completely eliminating the sense of confinement typical of closed-back models, the design reproduces a vast soundstage where sound spreads naturally beyond the housing. You can immerse yourself in a crystal-clear atmosphere free from distortion and experience a remarkable sense of realism, as if a band were performing right in front of you.

■ The Evolved Next-Generation "X2 Driver Platform"
・ Equipped with the 44mm X2 dynamic driver, which builds upon years of accumulated acoustic technology. By optimizing the combination of the Mylar diaphragm, copper voice coil, and rare-earth magnetic circuit, we have maximized electrical signal conversion efficiency and control. This serves as the core for energetic, high-purity musical expression, eliminating sonic muddiness.

■ Exquisite Sound Tuning Offering Exceptional Clarity
・ Tuned to emphasize a clear attack, tight and well-defined bass, a realistic midrange that projects forward, and endlessly soaring highs. It cleanly separates the layered structures of complex tracks, directly conveying every subtle nuance and the raw passion the artist poured into the recording.

■ "F-Cushion" Delivers Direct Energy to the Eardrum
・ Comes standard with "F-Cushion" ear pads, designed to optimize the sound profile of our high-end models. Through precise acoustic engineering that brings the driver closer to the ear, sound energy is transmitted directly without loss. It further enhances the energetic, highly responsive sound that is the hallmark of the aluminum housing.

■ Premium specifications featuring a genuine leather strap and refined, lightweight parts
・ A luxurious design befitting a flagship model, featuring a premium genuine leather headband accented with white stitching. Newly adopted reinforced polymer gimbals and joint blocks achieve weight reduction while maintaining ideal fit geometry and a smooth rotation mechanism. A steel leaf spring allows for easy adjustment of clamping force.

■ Signature Silver Cable with improved transmission efficiency and flexibility
・ The included fixed cable utilizes the newly developed "Signature Silver Cable." It offers significantly improved lightness and flexibility compared to previous designs, making it exceptionally easy to handle for daily listening. Its superior conductivity eliminates signal loss, powerfully supporting the SR325’s precise, fast-paced sound from the source.

■ Traditional craftsmanship born in New York
・ Standing at the pinnacle of the Classic Series, this model is carefully assembled by hand by skilled artisans at the Brooklyn, USA factory. It inherits the traditional integrated fixed-cable structure and offers a choice between the standard model and a "4-pin XLR balanced cable" version (made-to-order)—a truly uncompromising, professional-grade product.


・ Model Name: SR325
・ Series: Classic Series
・ Type: Open-air (Open-back)
・ Driver Configuration: 44mm x2 Dynamic Drivers
・ Frequency Response: 18Hz – 24kHz
・ Sensitivity: 98dB
・ Channel Balance: 0.05dB
・ Earpads: F-Cushion
・ Housing: Precision-machined aluminum
・ Cable Specification: Fixed 3.5mm Signature Silver Cable (Standard Model)
・ Included Accessories: 3.5mm to 6.3mm adapter