User manual
Sennheiser HMD 300 XQ-2 Headset with

User Manual for Sennheiser HMD 300 XQ-2 Headset with Boom Microphone & Cable with XLR and 1 4" Jacks

• Product category: Headsets Sennheiser
• Brand: Sennheiser
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Sennheiser Headsets

Product description

• HMD 300 Pro Headset with Boom Microphone (Without Cable) The Sennheiser HMD 300 PRO is a closed-back, circumaural communications headset with a sonic design based on the HD 250 linear headphones, giving you a detailed, linear response. The headset features a comfortable construction with split-headband padding to remove pressure from sensitive areas of the head.
  
  With a frequency response of 60 Hz to 25 kHz, the headphones provide clear reproduction of audio, doing so while offering up to 32 dB of passive noise reduction. The headset offers a dynamic boom microphone, one that delivers a hypercardioid polar pattern for focusing on vocals, and a frequency range centered around picking up the human voice in communication settings (80 Hz to 16 kHz). You can adjust the gain of the microphone in 5 dB steps over a range of 45 dB in total.
  
  The headband supporting the unit's earcups is rugged, bendable, and twistable, and the boom can be worn on either side of the headset. To preserve your hearing, the headset features a switchable noise-protection mode called ActiveGard that protects against sudden bursts of sound without interrupting the signal.
  
  The HMD 300 Pro sports a modular cable design to accommodate multiple pin-outs and configurations. Though no cable is included with the headset, each of the compatible cables sport a design that minimizes handling noise; this is achieved with a small series of coils on the cable approach that decouple the cable from the headset.
  ActiveGard Technology
  • • This sound compression system consists of an electrical circuit incorporated into analogue headsets.
    • Compression technology removes the energy from an excessive incoming signal transmitted through the communication system, leaving the signal free of distortion.
    • The ActiveGard circuit can be compared to an automatic and fast-working “intelligent” volume control. If an incoming signal rises to a level that is harmful to your hearing, it is instantly “turned down” to a lower, more comfortable level.
    • When the incoming signal returns to safe levels, ActiveGard reverts to its stand-by surveillance mode and volume is restored to its original level.
  Key Features at a Glance
  • • Switchable ActiveGard mode for hearing protection
    • Linear sound reproduction optimized for speech intelligibility
    • Microphone can be worn either on right or left side
    • Comfortable padding design allows for extended use in long wearing sessions
    • Passive ambient noise attenuation due to closed earcup construction
    • Foldable earcup design
  UPC: 615104272194
• Cable-II-X3K1-Gold Straight Cable with XLR & 1/4" Connectors for HMD Headsets (6.6') The 6.6' Sennheiser Cable-II-X3K1-Gold is a straight copper cable with XLR and 1/4" connectors designed for use with select Sennheiser HMD and HME headsets in broadcast and communications applications. With a proprietary connector at the headset end and XLR 3-pin and 1/4" jacks at the other, it is compatible with HMD 300/301 Pro, HMD/HME 26-II, and HMD/HME 27 Pro headsets.It utilizes copper wire and gold-plated contacts to enhance conductivity while maintaining a flexible shield. A coiled section reduces handling noise and the aramid reinforcement delivers increased durability.
  • Compatible with HMD 300 Pro, HMD 301 Pro, HMD 26-II, HME 26-II, HMD 27 Pro, and HME 27 Pro headsets
  • Straight copper cable with coiled segment to eliminate structure-born noise
  • Reinforced with aramid for improved durability
  • Softer shield enhances flexibility
  UPC: 615104321717

• Wind and Pop Screen

• Limited 2-Year Warranty

• Limited 2-Year Warranty

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Technical parameters

• HMD 300 Pro Headset with Boom Microphone (Without Cable)

  Driver Type	Dynamic
  Design	Over-Ear (Circumaural)
  Earcup Style	Closed-Back

  Frequency Response	60 Hz to 25 kHz
  Sensitivity	108 dB at 1 kHz
  Impedance	64 Ohms
  Maximum Sound Pressure Level (SPL)	123 dB at 1 kHz 110 SPL with ActiveGard on
  Maximum Power Handling	500 mW
  Active Noise Cancellation	No
  Noise Attenuation	Up to 32 dB
  Foldable	Yes
  Contact Pressure	6.0 N

  Type	Dynamic
  Pickup Pattern	Cardioid Hypercardioid
  Frequency Response	80 Hz to 16 kHz
  Impedance	300 Ohms
  Design	Single-Sided
  Color	Black
  Detachable	Yes
  In-Line Remote/Microphone	No Boom headset microphone

  Weight	0.70 lb / 319 g without Cable

  Box Dimensions (LxWxH)	9.6 x 7.5 x 3.4"

• Cable-II-X3K1-Gold Straight Cable with XLR & 1/4" Connectors for HMD Headsets (6.6')

  Compatible Headsets	HMD 300/301 Pro HMD/HME 26-II HMD/HME 27 Pro
  Construction Material	Copper cable Aramid reinforcement Gold-plated contacts
  Connector 1	Proprietary connector with attachment screws
  Connector 2	XLR 3-pin male
  Connector 3	1/4" TRS male
  Cable Length	6.6' / 2 m
  Weight	3.7 oz / 106 g

  Box Dimensions (LxWxH)	9.0 x 5.5 x 0.5"

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