Shure QLXD2/KSM9 Digital Handheld Wireless Microphone Transmitter with KSM9 Capsule (X52: 902 to 928 MHz)

Shure QLXD2/KSM9 Digital Handheld Wireless Microphone Transmitter

Exceptional Audio Performance for Professional Use

The Shure QLXD2/KSM9 is a state-of-the-art digital handheld wireless microphone transmitter designed for compatibility with QLX-D receivers. It features a dual-diaphragm KSM9 condenser capsule renowned for capturing sonic nuances with exceptional detail, ensuring precise vocal reproduction for high-end live performances.

Versatile Polar Patterns for Optimal Sound Control

The KSM9 capsule offers two switchable polar patterns, providing flexibility to adapt to various environments and performer techniques:

• Cardioid Pattern: Ensures solid gain before feedback with minimal off-axis coloration, delivering a warm, full-bodied sound.


• Supercardioid Pattern: Enhances sound isolation and gain before feedback, ideal for high ambient noise settings or closely positioned instruments and vocalists.

Robust Frequency Range and Reliable Operation

The QLXD2/KSM9 operates within a 26 MHz UHF tuning range, offering 1040 selectable frequencies for reliable performance. It supports up to 9 hours of continuous operation on two AA batteries and features a transmission range of up to 330 feet, with selectable RF power output options of 1mW and 10mW.

Durable Construction with Secure Transmission

Built with a rugged yet lightweight aluminum housing, the QLXD2/KSM9 ensures durability and ease of use. AES 256-bit encryption secures the transmission, making it suitable for critical applications in medium-sized venues, houses of worship, conferences, educational institutions, and corporate settings.

Superior Audio Clarity with Interchangeable Capsule

• 24-bit/48 kHz Digital Audio: Delivers pristine and reliable sound quality.


• KSM9 Capsule: Equipped with dual 3/4” gold-layered, low-mass Mylar diaphragms for consistent frequency response.


• Class-A Preamplifier: Offers transparency and fast transient response without crossover distortion.


• Three-Stage Pop Protection Grille: Minimizes plosives, wind noise, and breath sounds.


• Interchangeable Capsule Design: Allows easy replacement of the KSM9 capsule with other Shure capsules, such as SM58, SM87A, Beta 58A, Beta 87C, and KSM8, to suit different applications.

User-Friendly Features

• Infrared Sync: Simplifies syncing with wireless receivers at the touch of a button.


• Adjustable Input Sensitivity: Accommodates various mic levels from loud to soft voices.


• Lockout Functions: Prevent accidental or unauthorized adjustments during use.


• Backlit LCD Display: Provides clear navigation of frequency, group, and channel settings, along with mute and lock status and RF output adjustments.


• Selectable RF Output Power: Enables increased range or higher density of simultaneous mic operation.

Convenient Power Management Options

• Standard AA Batteries: Provide up to 9 hours of operation.


• Shure SB900A Rechargeable Battery Pack: Offers over 10 hours of operation with precision metering and no memory effect.


• External Charging Contacts: Allow for efficient docked charging with the SBC200 dual-docking charger (sold separately).


• Networkable SBC220 Charger: Facilitates remote power monitoring via Shure’s Wireless Workbench software, enhancing overall system management.

The Shure QLXD2/KSM9 is an optimal choice for sound reinforcement applications, delivering reliable and high-quality audio performance in diverse environments.