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

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

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

B&H # SEHMD300XQ2 MFR # HMD 300 XQ-2
Sennheiser HMD 300 XQ-2 Headset with Boom Microphone & Cable with XLR and 1/4" Jacks

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Product Highlights

  • Circumaural, Sound-Isolating Design
  • Up to 32 dB Passive Noise Reduction
  • Padded Headset for Prolonged Listening
  • 60 Hz to 25 kHz Frequency Response
  • Hypercardioid Dynamic Boom Microphone
  • 80 Hz to 16 Hz Frequency Response on Mic
  • Adjustable Audio Range of 45 dB on Mic
  • Switchable ActiveGard Hearing Protection
  • Cable Design Minimizes Handling Noise
  • 6.6' Cable with XLR & 1/4" Jacks
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Configuration: Headset and Cable with XLR & 1/4" Jacks

Headset Headset and Cable with XLR & 1/4" Jacks
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Sennheiser HMD 300 XQ-2 overview

  • 1Description

The Sennheiser HMD 300 XQ-2 is comprised of the HMD 300 Pro communications headset and the Cable-II-X3K1-Gold headset cable. The headset's closed-back, over-ear design provides up to 32 dB of passive noise attenuation while the padded headband and earcups ensure comfortable wearing. The detachable 6.6' straight cable features a coiled section to mitigate handling noise. It utilizes copper wiring and is terminated with gold-plated XLR 3-pin and 1/4" jacks.

  • HMD 300 Pro Headset with Boom Microphone

    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
Table of Contents
  • 1Description
  • HMD 300 Pro Headset with Boom Microphone
    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
    Noise Cancellation Type Passive
    Noise Attenuation Up to 32 dB
    Foldable Yes
    Contact Pressure 6.0 N
    Type Dynamic
    Pickup Pattern Cardioid


    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
    Packaging Info
    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
    Packaging Info
    Box Dimensions (LxWxH) 9.0 x 5.5 x 0.5"

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