Introduction
The beyerdynamic DT 770 PRO 80 Ohm headphones are a closed-back, dynamic over-ear model designed for professional use in studio environments, including monitoring and recording applications. This manual provides essential information for the proper setup, operation, and maintenance of your headphones to ensure optimal performance and longevity.

Image: The beyerdynamic DT 770 PRO 80 Ohm headphones, showcasing their over-ear design and robust construction.
Setup
The DT 770 PRO 80 Ohm headphones are designed for wired connectivity. Proper connection to your audio equipment is crucial for optimal sound quality.
Connecting Your Headphones
- Identify the Audio Output: Locate the headphone output jack on your audio interface, mixer, amplifier, or other audio device.
- Select the Correct Adapter: The DT 770 PRO 80 Ohm headphones come with a fixed 3.0m cable terminated with a 3.5mm stereo jack. A 6.35mm (1/4-inch) screw-on adapter is included for compatibility with professional audio equipment. Attach the 6.35mm adapter if your device requires it.
- Insert the Connector: Firmly insert the 3.5mm jack (or 6.35mm adapter) into the corresponding audio output on your device.
Impedance Considerations: The 80 Ohm impedance version is versatile, suitable for a wide range of studio and home applications, including audio interfaces, mixing consoles, and portable devices with sufficient output power. For mobile devices with lower output, a 32 Ohm version is available. For high-power professional studio equipment, a 250 Ohm version is recommended. Using the correct impedance for your source device ensures proper volume levels and sound reproduction.

Image: Illustration of the different impedance variants (32 Ohm, 80 Ohm, 250 Ohm) of the DT 770 PRO headphones and their recommended applications.
Operating Instructions
The DT 770 PRO headphones are designed for extended listening sessions with high comfort and accurate sound reproduction.
Wearing the Headphones
- Adjust the Headband: Extend or retract the adjustable headband to ensure a comfortable and secure fit on your head. The soft-padded headband construction is designed for comfort.
- Position the Earcups: Ensure the circumaural velour ear pads fully enclose your ears. This provides optimal sound isolation and comfort.

Image: A person wearing the DT 770 PRO headphones, highlighting the comfortable over-ear design.
Sound Monitoring and Recording
- Closed-Back Design: The closed-back design provides excellent sound isolation, minimizing leakage into microphones during recording and reducing external noise interference during monitoring.
- Volume Control: Adjust the volume using the controls on your connected audio device. The headphones themselves feature a remote control type for volume adjustment, if supported by your source.
- Professional Use: These headphones are engineered for accurate and high-resolution sound, making them suitable for critical listening tasks in studio and stage environments.

Image: A musician wearing the DT 770 PRO headphones during a recording session, illustrating their use in a professional context.
Maintenance
Regular maintenance ensures the longevity and hygienic use of your headphones.
Cleaning the Ear Pads
- The velour ear pads are replaceable and can be removed for cleaning.
- Gently detach the ear pads from the earcups.
- Hand wash the ear pads with mild soap and lukewarm water. Avoid harsh detergents.
- Rinse thoroughly and allow them to air dry completely before reattaching.
General Cleaning
- Wipe the exterior surfaces of the headphones with a soft, dry cloth.
- Avoid using liquid cleaners or solvents directly on the headphones.
Storage
- When not in use, store the headphones in the included carrying bag to protect them from dust and physical damage.

Image: A close-up view of the internal components, emphasizing the 'Handmade in Germany' quality and modular design for replaceable parts.
Troubleshooting
If you encounter issues with your DT 770 PRO headphones, consider the following common solutions:
- No Sound or Low Volume:
- Ensure the headphone cable is fully inserted into both the headphones and the audio source.
- Check the volume level on your audio source device.
- Verify that the audio source is powered on and playing audio.
- Confirm that the 80 Ohm impedance is compatible with your audio source's output power. Lower impedance headphones (e.g., 32 Ohm) might be required for some portable devices.
- Distorted Sound:
- Reduce the volume on your audio source.
- Ensure the audio cable is not damaged or kinked.
- Test with a different audio source to rule out source-related issues.
- Discomfort During Use (especially with glasses):
- Adjust the headband and earcup position to relieve pressure points.
- Take short breaks during long listening sessions to alleviate pressure.
- Ensure the ear pads are correctly seated and not twisted.
- Poor Sound Isolation:
- Ensure the ear pads fully seal around your ears. Adjust the headband for a snug fit.
- Check if the ear pads are worn out and require replacement.
Specifications
| Brand | beyerdynamic |
| Model | DT 770 PRO 80 Ohm |
| Type | Closed, Dynamic Over-Ear Headphones |
| Impedance | 80 Ohm |
| Frequency Range | 5 Hz - 35,000 Hz |
| Connectivity Technology | Wired |
| Headphones Jack | 3.5 mm; 6.3 mm (with adapter) |
| Noise Control | Sound Isolation |
| Material | Soft PVC (ear pads: velour) |
| Item Weight | 9.5 ounces (270 grams) |
| Product Dimensions | 10 x 5 x 8 inches |
| Manufacturer | beyerdynamic |
What's in the Box
The beyerdynamic DT 770 PRO 80 Ohm package includes:
- beyerdynamic DT 770 PRO 80 Ohm Studio Headphones
- 6.35 mm (1/4-inch) Jack Adapter
- Drawstring Carrying Bag

Image: The complete package contents for the DT 770 PRO headphones, showing the headphones, adapter, and carrying bag.
Warranty and Support
beyerdynamic products are manufactured to high quality standards. For information regarding warranty coverage, technical support, or service, please refer to the official beyerdynamic website or contact their customer service directly. Keep your proof of purchase for warranty claims.





