Shure QLXD2/KSM9 Digital Handheld Wireless Microphone Transmitter with KSM9 Capsule (J50A: 572 to 608 + 614 to 616 MHz)

Shure QLXD2/KSM9 Digital Handheld Wireless Microphone Transmitter

Exceptional Performance for Professional Live Sound

The Shure QLXD2/KSM9 is a cutting-edge digital handheld wireless microphone transmitter designed to seamlessly integrate with QLX-D receivers. Engineered with a dual-diaphragm KSM9 condenser capsule, it excels in capturing intricate sonic details, delivering precise vocal reproduction for high-end live performances.

Enhanced Flexibility with Dual Polar Patterns

Equipped with the versatile KSM9 capsule, this transmitter offers two switchable polar patterns to cater to diverse needs:

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


• Supercardioid Pattern: Offers increased sound isolation and gain before feedback, making it ideal for noisy environments or setups with multiple closely situated sound sources.

Reliable Operation and Extensive Frequency Range

Operating within a 44 MHz UHF tuning range with 1760 selectable frequencies, the QLXD2/KSM9 ensures reliable performance in any setting. It offers a transmission range of up to 330 feet and features a selectable 1/10mW RF power output.

Rugged Construction for Seamless Integration

Housed in a rugged yet lightweight aluminum housing, the QLXD2/KSM9 transmitter ensures pristine audio quality and RF performance. AES 256-bit encryption guarantees secure transmission, making it suitable for sound reinforcement applications in medium-sized venues, houses of worship, and various A/V installations.

Clear, Accurate Audio with Interchangeable Capsule

• 24-bit/48 kHz Digital Audio: Delivers clear and reliable audio reproduction.


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


• Class-A Preamplifier: Utilizes a discrete transformerless design for transparency, fast transient response, and minimal crossover distortion.


• Integrated Pop Protection Grille: Reduces plosives, wind noise, and breath sounds.


• Interchangeable Capsule Design: Allows seamless replacement of the KSM9 capsule with other Shure capsules, including SM58, SM87A, Beta 58A, Beta 87C, and KSM8.

User-Friendly Features for Seamless Operation

• Quick Syncing: Easily syncs with wireless receivers via infrared at the touch of a button.


• Adjustable Input Sensitivity: Accommodates mic levels ranging from booming voices to quiet speech.


• Frequency and Power Lockout Functions: Prevent accidental or unauthorized changes during events.


• Backlit LCD Display: Provides easy access to frequency, group, and channel settings, along with mute and lock status, and RF output.

Convenient Power Management Options

• Long Battery Life: Operates for up to 9 hours on two AA batteries.


• Optional Rechargeable Battery Pack: The Shure SB900A lithium-ion pack offers over 10 hours of battery life, precision metering, and zero memory effect.


• External Charging Contacts: Enable docked battery charging with the SBC200 dual-docking charger (available separately).


• Networkable Charger: The SBC220 charger (available separately) allows for remote power monitoring via Shure’s Wireless Workbench software.