Beyerdynamic DT 900 PRO X - Studio Headphones for Critical Listening, Mixing & Mastering Manual

APPLICATION

With the closed DT 900 PRO X, beyerdynamic presents a pair of circumaural studio headphones that are suitable for professional monitoring, mixing and mastering in the studio as well as on the road. This is enabled by the STELLAR.45 driver, developed in Heilbronn - Germany, which reproduces the best studio quality sound loudly and powerfully on all playback devices. Whether on an interface, laptop, tablet or mobile phone, there are no limits to creativity.
The detachable mini-XLR cable can be replaced by cables of different lengths and connection options. The rugged spring steel headband construction gives the over-ear headphones a secure fit and ensures durability. The supple velour ear pads are soft to touch, as you would expect, and ensure comfortable air circulation. Thanks to soft memory foam, the headband adapts ergonomically to the shape of the head and, like the ear pads, it can be replaced when necessary. Robust and high-quality materials complete these headphones, which are handmade in Germany.

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.
• 
  Never use any solvent cleaning agents! Furthermore, the pads must be completely dry before they are attached to the headphone again.
• 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 and Accessories". You can easily do this yourself.
• If other components have to be replaced, please contact your local beyerdynamic representative.

HOW TO CONNECT THE CABLE

• The lockable connecting cable is fitted with a 3-pin mini XLR cable connector to the headphones.
• For correct assembly, the small release button of the cable must face to the outer site of the headphone.
• When connecting the cable, make sure that the cable connector locks in place of the ear cup.
• 
  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.
  
• When you want to change the cable, please press the small button for release and simultaneously pull off the cable connector from the headphone.
  

HOW TO CHANGE THE EAR PADS

• To remove the ear pad, carefully pull apart the gap between housing and ear pad using your fingertips or an arrow blunt object.
  
• To attach the ear pad, please make sure that the snap-in nose of the ear pad sits in the right place.
• Then press gently with the palm of your hand against the ear pad until the ring snaps into place.
  

HOW TO CHANGE THE HEADBAND PAD

• To remove the headband pad, carefully pull on the silicon strap until all hooks of the headband pad are released from the headband.
  
• To attach the headband pad, make sure that the snap-in nose on the right side sits in the right place.
• Then press gently the pad into the headband until the hooks snap into place.
  

VERSION

• DT 900 PRO X
  Dynamic premium studio headphones, open, 48 Ω: Order # 729.906

SUPPLIED ACCESSORIES

• 1 x Straight cable, 3-pin mini XLR and mini stereo jack (3.5 mm) & 1/4" (6.35 mm) adapter, length 3 m (9.8 ft)
• 1 x Straight cable, 3-pin mini XLR and mini stereo jack (3.5 mm) & 1/4" (6.35 mm) adapter, length 1.8 m (5.9 ft)
• 1 x 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:
  beyerdynamic Service- und Logistik Center
  E-mail: service@beyerdynamic.de
• Dismantling the headphone yourself will invalidate the guarantee.

TECHNICAL SPECIFICATIONS

SAFETY INSTRUCTIONS

Risk of injury

• We would like to point out that excessively high volumes and long listening times may cause hearing damage. Hearing defects always constitute an irreversible impairment of hearing ability. If you suffer from tinnitus, do not use headphones or reduce the volume.
• According to regulations to protect employees against damages caused by noise and vibrations, 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.
• beyerdynamic is not liable for improper use of the product and its accessories.