Description
The Grado SR325 is a wired, open-air dynamic headphone from Grado's Classic Series, pairing the 44mm X2 driver with a precision-machined aluminum housing designed to reduce unwanted resonance. At its core is a Mylar diaphragm, a copper voice coil, and Grado's rare earth magnet system, engineered around efficiency and control.
Grado specifies a frequency response of 18 Hz–24 kHz, 98 dB SPL (1 mW), 38-ohm impedance, and driver matching of 0.05 dB.
The Signature Silver headband assembly uses engraved reinforced polymer gimbals and a genuine leather headstrap finished with contrasting white stitching; an internal steel spring band lets you easily adjust clamping pressure. The supplied Signature Silver cable offers reduced weight and more flexibility than earlier designs, and the standard F cushions sit on the open earcups — Grado cushions serve as a tuning element, so you can personalize the sound by swapping them.
This is a demo unit; its exact cosmetic and operating condition, included accessories, packaging, and warranty coverage must be confirmed by the dealer before publication.
Specifications
| Transducer type | Dynamic |
| Operating principle | Open air (open-back) |
| Driver | 44mm X2 dynamic: Mylar diaphragm, copper voice coil, rare earth magnet system |
| Frequency response | 18 Hz – 24 kHz |
| SPL 1mW | 98 dB |
| Normal impedance | 38 ohms |
| Driver matching | 0.05 dB |
| Housing | Precision-machined aluminum |
| Ear cushions (standard) | F cushions |
| Headband | Signature Silver assembly: engraved reinforced polymer gimbals, genuine leather headstrap, internal steel spring band |
| Cable (supplied) | Signature Silver cable |