GRADO SR125x

GRADO SR125x Prestige Series Open-Back Wired Over-Ear Dynamic Headphones Instruction Manual

Brand: GRADO | Model: SR125x

Product Overview

The GRADO SR125x Prestige Series headphones are designed to deliver an authentic audio experience with detailed highs, rich mids, and tight bass. Hand-assembled in Brooklyn, NY, these headphones feature 44mm X Series drivers for enhanced performance and an open-back design for an immersive soundstage. They are built for comfort during long listening sessions and are durable for daily use.

  • AUTHENTIC GRADO SOUND SIGNATURE: The SR125x delivers detailed highs, rich mids, and tight bass—thanks to Grado’s legendary tuning and open-back design. Hear your music with lifelike clarity and space.
  • 44MM X SERIES DRIVERS FOR ENHANCED PERFORMANCE: Equipped with 4th-gen Grado drivers, the SR125x features improved efficiency, reduced distortion, and faster response for cleaner audio across all frequencies.
  • HAND-ASSEMBLED IN BROOKLYN, NY: Each headphone is meticulously crafted by the Grado team using traditional techniques passed down through generations—built to last and sound better with time.
  • OPEN-BACK DESIGN FOR IMMERSIVE SOUNDSTAGE: Enjoy a spacious, three-dimensional listening experience. Ideal for home listening, critical mixing, or rediscovering your favorite records.
  • LIGHTWEIGHT, COMFORTABLE & DURABLE: With a low-profile headband, updated cushions, and rugged build, the SR125x is comfortable for long sessions and portable enough for daily listening.
GRADO SR125x headphones, front view

Image: Front view of the GRADO SR125x Prestige Series headphones, showcasing the open-back design and padded headband.

Setup

Setting up your GRADO SR125x headphones is straightforward. Follow these steps to begin your listening experience.

  1. Unpack: Carefully remove the headphones and any included cables from the packaging.
  2. Identify Connections: The SR125x uses a standard 3.5 mm audio jack for connectivity.
  3. Connect to Audio Source: Plug the 3.5 mm jack of the headphone cable into the corresponding audio output port on your device (e.g., smartphone, tablet, computer, audio receiver).
  4. Adjust Headband: Place the headphones on your head and adjust the headband for a comfortable fit. The low-profile headband and updated cushions are designed for extended wear.
  5. Position Earcups: Ensure the earcups sit comfortably over your ears. The open-back design allows for a spacious listening experience.
Close-up of GRADO SR125x earcup with SR125x logo

Image: Close-up of a GRADO SR125x earcup, highlighting the 'SR125x' model designation and the open-back grille.

Operating Your Headphones

Wearing the Headphones

Position the headphones so that the earcups fully cover your ears. The adjustable headband allows for a personalized fit, ensuring comfort during prolonged listening. The open-back design means some sound will naturally escape and external sounds may be audible, contributing to a more natural soundstage.

Audio Source Connection

The headphones are designed for wired use. Connect the 3.5 mm jack to your audio device. The 38 Ohm impedance ensures compatibility with a wide range of devices without requiring a dedicated amplifier for most uses.

Volume Control

Adjust the volume directly from your connected audio source. The headphones do not feature inline volume controls.

GRADO SR125x headphones on a wooden headphone stand

Image: GRADO SR125x headphones resting on a wooden headphone stand, highlighting their classic design and comfortable earpads.

Maintenance and Care

Proper maintenance ensures the longevity and optimal performance of your GRADO SR125x headphones.

Cleaning

  • Use a soft, dry cloth to wipe down the earcups and headband.
  • Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the finish and materials.
  • Do not immerse the headphones in water or any other liquid.

Storage

  • Store your headphones in a cool, dry place away from direct sunlight and extreme temperatures.
  • Avoid placing heavy objects on top of the headphones to prevent damage to the headband or earcups.
  • When not in use, consider storing them on a headphone stand to maintain their shape and prevent cable tangling.

Earpad Replacement

The earpads on your GRADO SR125x headphones are designed to be replaceable. Over time, earpads may show signs of wear. Replacement earpads can be purchased separately to maintain comfort and sound quality. Refer to the GRADO website or authorized retailers for compatible replacement parts and instructions.

GRADO SR125x headphones from a side angle

Image: Side view of the GRADO SR125x headphones, showing the adjustable metal rods connecting the earcups to the headband.

Troubleshooting

If you encounter any issues with your GRADO SR125x headphones, refer to the following common troubleshooting steps:

ProblemPossible Solution
No sound or low volume
  • Ensure the 3.5 mm audio jack is fully inserted into both the headphones and the audio source.
  • Check the volume level on your audio source and increase it if necessary.
  • Test the headphones with a different audio source or device to rule out a device-specific issue.
  • Inspect the audio cable for any visible damage.
Distorted sound
  • Lower the volume on your audio source.
  • Ensure the audio cable is securely connected.
  • Test with a different audio source or audio file to determine if the distortion is source-related.
Uncomfortable fit
  • Adjust the headband sliders to find the optimal fit for your head.
  • Ensure the earcups are positioned correctly over your ears.
  • Consider replacing worn earpads if they are no longer providing adequate comfort.

Technical Specifications

Below are the key technical specifications for the GRADO SR125x Prestige Series headphones:

FeatureSpecification
BrandGRADO
Model NumberSR125x
Ear PlacementOver Ear
Form FactorOver Ear
Impedance38 Ohms
Connectivity TechnologyWired
Headphone Jack3.5 mm Jack
Frequency Range20 Hz - 22,000 Hz
Audio Driver TypeDynamic Driver
Audio Driver Size44 Millimeters
MaterialSynthetic
WeightApproximately 12.35 ounces (based on product details)

Official Product Video

Video: An official overview of the Grado SR125x Prestige Series Headphones, showcasing their design, features, and sound quality. This video provides a visual guide to the product's aesthetics and functionality.

Warranty and Support

GRADO products are manufactured to high standards and are backed by a manufacturer's warranty. For specific warranty details, including coverage period and terms, please refer to the warranty card included with your product or visit the official GRADO website.

For technical support, troubleshooting assistance, or inquiries regarding replacement parts, please contact GRADO customer service through their official website or the contact information provided in your product documentation. Keep your proof of purchase for warranty claims.

Related Documents - SR125x

Preview Grado GW100X Wireless Headphones Owner's Guide
Comprehensive owner's guide for the Grado GW100X wireless headphones, detailing setup, controls, specifications, safety, and compliance. Learn how to connect, manage calls and music, and understand the features of your Grado GW100X.
Preview Grado GW100x Wireless Headphones Owner's Guide
Comprehensive owner's guide for the Grado GW100x wireless headphones, covering setup, operation, specifications, and safety information from Grado Labs.
Preview Grado GW100 Wireless Headphones Owner's Guide | Setup, Controls, and Specifications
Comprehensive owner's guide for Grado GW100 wireless headphones. Learn about setup, features, controls, specifications, and safety information for your Grado headphones.
Preview Grado Signature S750 Headphones: Premium Sound & Comfort
Explore the Grado Signature S750 headphones by Grado Labs. Featuring a new S2 driver, advanced Grado B cushion, and premium aluminium construction for exceptional audio fidelity and long-lasting comfort.
Preview Grado Labs Announces New Signature S750 Headphones
Grado Labs introduces the award-winning Signature S750 headphones, featuring a newly engineered S2 driver, the innovative Grado B cushion, and an enhanced detachable cable system. This press release details the product's design, technology, and specifications.
Preview Grado GW100 Bluetooth Headphone FCC Test Report
FCC test report for the Grado GW100 Bluetooth Headphone, detailing compliance with FCC Part 15 Subpart C 15.249 and 15.209 regulations. Includes radiated emission, band edge, bandwidth, and conducted emission test results performed by Shenzhen HUAK Testing Technology Co., Ltd.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.