beyerdynamic DT 770 PRO Studio Headphones User Manual

: June 15, 2024
: beyerdynamic

Table of Contents

Safety instructions
TECHNICAL SPECIFICATIONS
References
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Beyer dynamic DT 770 PRO Studio Headphones User Manual

Safety instructions

Please take some time to read carefully through this information before using the product.

Risk of injury

We would like to point out that excessively high volumes and long listening times may cause hearing damage.earing defects always constitute an irreversible impairment of hearing ability. If you suffer from tinnitus, do not ad phones or reduce the volume. According to regulations to protect employees against damages caused by noise adumbrations, please follow these instructions
85 dB SPL for max. 8 hours
88 dB SPL for max. 4 hours
91 dB SPL for max. 2 hours
94 dB SPL for max. 1 hour
97 dB SPL for max. 30 minutes
100 dB SPL for max. 15 minutes
When connecting the headphones, please ensure that the volume is turned down to minimum. Adjust the volume after putting on the headphones

Danger to life

Headphones drastically reduce perception of external sounds. Using headphones in road traffic can be potentially dangerous. The user’s hearing must not be impaired to the extent that it causes road safety risks. Please also make sure that you do not use the headphones in traffic, especially within an area of potentially dangerous machines and tools
Furthermore, avoid using headphones in situations where hearing must not be affected, especially when crossing a railway crossing or at a construction site.

Liability / intended use

Do not use the product for any application which is not described in this product information.
Beyer dynamic is not liable for improper use of the product and its accessories.

DESIGN FEATURES

The DT 770 PRO is a closed dynamic headphone and was designed for critical music and sound monitoring in an open environment. It has a bass reflex system to give low-frequency response down to 5 Hz and is equalized to the diffuse sound field. The weight of the diaphragm and moving coil of this headphone is approx. 20% compared to other current models. As a result, the DT 770 PRO offers similar pulse characteristics as electrostatic headphones. The cushion systems and light weight allow the DT 770 PRO to be used in complete comfort for long periods.

APPLICATION

The DT 770 PRO is ideal for control and monitoring purposes.
Due to the movable yokes and the adjustable headband made of spring steel, it can be ideally adapted to any head size
The connecting cable is single-sided and fitted with a 3-pole gold-plated mini jack plug (3.5 mm) and screw-on gold-plated adapter for 1/4″ jack sockets (6.35 mm).
Caution
Connect the jack connector of the headphone cable to a headphone socket only! If you connect the headphones to any other jack socket, the headphones could be damaged.

MAINTENANCE

As with any equipment which will be used in close proximity to sensitive areas of the body, it is essential that the ear pads and headband are kept clean. Use a damp cloth for cleaning using warm water only taking care not to allow any water drops into the ear cups or transducers
If necessary, you can carefully remove the ear pads and headband pad and clean them with mild soapy water
WARNING : Never use any solvent cleaning agents! Furthermore, the pads must be completely dry before they are attached to the headphone again.
WARNING : Never use a vacuum cleaner for cleaning the headphones, as this may cause irreparable damage
Should it become necessary to replace the ear pads or the headband pad, refer to “Replacement parts assures”. You can easily do this yourself.
If other components have to be replaced, please contact your local Beyer dynamic representative

HOW TO CHANGE THE EAR PADS

To remove the ear pads, carefully pull them away from the earphone shell using your fingertips
To attach the ear pad, insert the plastic lip of the earpad into the groove of the headphone and turn the ear pad clockwise until the ear pad is fully installed.
Turn the attached ear pad a few times. as indicated by the arrow.

CHANGE THE EAR PADS

To remove the headband pad, carefully unbutton the headband pad
To attach the headband pad, place it around the headband and the connecting cable and fasten the buttons

VERSIONS

Available versions can be found at:
www.beyerdynamic.com

SUPPLIED ACCESSORIES

1 x 1/4″ (6.35 mm) jack adapter
1 x Drawstring bag

ACCESSORIES AND REPLACEMENT PARTS

Accessories and replacement equipment can be found at: www.beyerdynamic.com
If you have technical problems while using the headphones or need further guidance, please visit our FAQ website at: support.beyerdynamic.com

SERVICE

If you require service, please contact qualified service personnel or directly:
Beyer dynamic Service- und Logistic Center E-mail: service@beyerdynamic.de
Dismantling the headphone yourself will invalidate the guarantee.

DISPOSAL

At the end of its operating life this product may not be disposed of along with normal household waste. Please take it to a designated recycling point for electric and electronic appliances
This is indicated by the symbol on the product, the operating instructions or the packaging

TECHNICAL SPECIFICATIONS

Transducer type . . . . . . . . . . . . . . . . . . Dynamic
Operating principle . . . . . . . . . . . . . . . Closed
Frequency response . . . . . . . . . . . . . 5 – 35,000 Hz
Nominal impedance . . . . . . . . . . . 32 Ω / 80 Ω / 250 Ω
Nominal SPL. . . . . . . . . . . . . . . . . . . . . . . 96 dB
T.H.D.. . . . . . . . . . . . . . . . . . . . . . . . . < 0.2%
Power handling capacity . . . . . . . . . . . . . 100 maw
Sound coupling to the ear . . . . . . . . . . . . Circumneutral

Ambient noise attenuation

32 Ω version . . . . . . . . . . . . . . . . . . approx. 20 dB
80 Ω / 250 Ω version . . . . .. . . . . . approx. 18 dB
Nominal headband pressure . . .. . approx. 3.5 N

Weight

32 Ω version. . . . . . . . . . . . . . . 325 g
80 Ω version . . . . . . . . . . . . . . . . . . 345 g
250 Ω version . . . . . .. . . . . . . . . . . . . . 380 g
Length and type of cable . . . . 1.6 m / straight cable (32 Ω) 3 m / straight cable (80 Ω) 3 m / coiled cable (250 Ω)
Connection . . . . . . . Gold plated stereo jack plug (3.5 mm) and 1/4″ adapter (6.35 mm)