Shure QLXD14/SM35 Digital Wireless Cardioid Performance Headset Microphone System (J50A: 572 to 608 + 614 to 616 MHz)
SKU: QLXD14SM35J50A

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Condition: New
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Why Buy From Us ? 
Why Buy From Us ? 
Click above to submit a purchase order
DUNS #074303253

Shure QLXD14/SM35 Rackmount Digital Wireless Headset Microphone System

Professional-Quality Audio and Reliable Performance

The Shure QLXD14/SM35 digital wireless headset microphone system is designed for instructors, presenters, and broadcasters who require professional-quality audio and dependable RF performance. Ideal for medium-sized venues, houses of worship, and A/V installations in conference, educational, and corporate facilities, the system ensures secure audio with AES 256-bit encryption.

Crystal-Clear Digital Audio

Operating in the UHF band, the QLXD14/SM35 transmits pristine 24-bit/48 kHz digital audio, offering clarity, accurate low end, and crisp transient response. Digital Predictive Switching Diversity technology protects against interference, providing solid RF signal stability without audio artifacts. The system supports up to 60 mic channels in the same location.

Comfortable and Secure Headset Microphone

The included SM35 cardioid performance headset microphone is designed for clear vocal reproduction. Its comfortable, wearable design ensures a secure fit for long periods of use, allowing active performers to move freely without sacrificing sound quality.

Durable and Efficient Bodypack Transmitter

The compact QLXD1 bodypack transmitter offers up to 9 hours of operation on two AA batteries, with selectable 1/10mW RF power and a transmission range up to 330 feet. The transmitter features a rugged, all-metal construction with a backlit LCD for essential information and easy menu access. The locking TA4M connection ensures a secure fit for the headset microphone, and the adjustable input sensitivity accommodates various speaking styles and mic levels.

Versatile Receiver with Intuitive Controls

The receiver features audio and RF meters, 60 dB of gain control, and both mic/line XLR and 1/4″ instrument outputs. A large LCD screen and intuitive controls allow quick adjustments, even in low-light conditions. Automatic frequency scanning and IR sync simplify setup, while internal limiting prevents clipping.

Network Integration and Remote Control

The Ethernet port allows for easy networking of multiple receivers for simplified frequency coordination and deployment via Shure’s Wireless Workbench (WWB) software. The system is compatible with external controllers such as AMX and Crestron and can be controlled remotely using the ShurePlus Channels Mobile App for iOS devices.

Enhanced Security and Low Latency

Operating in the J50A UHF band (572 to 608 + 614 to 616 MHz) with a 44 MHz tuning range and 1760 selectable frequencies, the system ensures low latency and robust performance. The 256-bit AES encryption provides unbreachable privacy with a unique encryption key generated every time encryption is enabled.

Smart Power Management

Smart power management options include the SB900A lithium-ion rechargeable battery (available separately) with extended life over alkaline batteries. The remaining battery life can be metered in hours and minutes from the receiver’s front panel.

System Expansion and Reliability

Enhance your system’s reliability with UA874 active antennas or PA805 passive antennas, which increase range and protection against interference. The UA844+SWB antenna distribution system (available separately) allows for more on-air channels in less setup time.

Flexible Microphone Options

Shure offers various lavalier and handheld microphone options to adapt your QLX-D system as your needs evolve:

  • WL183: Omnidirectional lavalier mic for consistent pickup.
  • WL185: Cardioid lavalier mic for feedback resistance.
  • WL184: Supercardioid lavalier mic for louder events.
  • MX153: Sub-miniature earset mic for exceptional clarity in spoken word applications.
  • QLXD2 Handheld Transmitter: Available with several mic capsule choices for those who prefer handheld microphones.

The Shure QLXD14/SM35 system combines rugged construction, clear audio, and versatile features, making it an ideal choice for professional presentations, broadcasts, and performances.

PDF Documents
Microphone Type Headset
Polar Pattern Cardioid
Connector 1x TA4F/Mini-XLR 4-Pin Female Unbalanced (Locking)
Microphone Color Black
Frequency Response 20 Hz to 20 kHz
Output Impedance XLR Output: 100 Ohms (Balanced) 1/4" Output: 100 Ohms (Balanced) 1/4" Output: 50 Ohms (Unbalanced)
Weight
General
System
Wireless Technology
Digital UHF
Number of RF Channel Frequencies
1760
Included Transmitters
1x Bodypack
Diversity
Antenna Diversity
RF Frequency Band
J50A: 572 to 608 MHz
614 to 616 MHz
RF Bandwidth
44 MHz
Frequency Step Size
25 kHz
Max Operating Range
330′ / 100.6 m
Max Transmitters per Band
60
Sample Rate/Resolution
48 kHz / 24-Bit
Latency
< 2.9 ms
Dynamic Range
120 dB
Encryption
AES 256
Modulation
Proprietary
Receiver
Receiver Type
Tabletop
Mounting Options
Rackmount (with Included Hardware)
Rackmount Size
1 RU (1/2 Rack)
Antenna
2x 1/2 Wave External, Detachable (Rear-Mount)
Number of Audio Channels
1
Audio I/O
1x XLR 3-Pin Male Balanced Output
1x 1/4″ TRS Female Balanced Output
Gain Range
-18 to +42 dB (1 dB Steps)
Pad
30 dB
Audio Output Level
XLR Output:
+18 dBV (Line Level)
XLR Output:
-12 dBV (Mic Level)
1/4″ Output:
+12 dBV (Instrument Level)
Phantom Power Protection
On 1/4″, XLR Output
Network I/O
1x RJ45 (10/100 Mb/s)
Network Protocols
DHCP, Manual IP
Impedance
XLR Output:
100 Ohms (Balanced)
1/4″ Output:
100 Ohms (Balanced)
1/4″ Output:
50 Ohms (Unbalanced)
Adjacent Channel Isolation
>70 dB
Spurious
Rejection: >80 dB
Power Requirements
AC/DC Power Adapter
AC/DC Power Adapter
12 VDC at 0.4 A, Center-Positive (Included)
AC Input Power
100 to 240 VAC, 50 / 60 Hz at 150 mA
Display & Indicators
1x Backlit LCD (AF Level, Channel, Group, Menu Navigation, Metering, RF Level, Transmitter Battery Status)
1x LED (Sync)
1x LED (Peak)
Housing
Metal
Operating Temperature
0 to 122°F / -18 to 50°C
Dimensions
7.8 x 1.6 x 5.9″ / 197 x 41 x 151 mm (without Antennas)
Weight
1.7 lb / 777 g (without Antenna)
Transmitter
Transmitter Type
Bodypack
RF Output Power
1 / 10 mW
Audio I/O
1x TA4/Mini-XLR 4-Pin Male Unbalanced Input (Locking)
Audio Input Level
8.5 dBV / 7.5 V p-p
Gain Range
0 to 21 dB (3 dB Steps)
Frequency Response
20 Hz to 20 kHz
Sync Method
IR
Antenna
1x 1/4 Wave
Power Requirements
Battery
Battery Type
2x AA (Included)
1x Shure SB900A (Not Included, Replaceable)
Approx. Battery Life
9 Hours (Alkaline)
Display & Indicators
1x Backlit LCD (Channel, Group, RF Output Power)
Housing
Aluminum
Dimensions
2.6 x 3.4 x 0.9″ / 65 x 86 x 23 mm
Weight
4.9 oz / 138 g (without Batteries)
Microphone
Microphone Type
Headset
Sound Field
Mono
Capsule
Electret Condenser
Polar Pattern
Cardioid
Frequency Range
40 Hz to 20 kHz
Maximum SPL
153 dB SPL
Impedance
2400 Ohms
Sensitivity
-59 dBV/Pa
Dynamic Range
102.5 dB
Output Connector
1x TA4F/Mini-XLR 4-Pin Female Unbalanced (Locking)
Cable Length
3.61′ / 1.1 m
Operating Voltage
5 to 10 V
Weight
2.54 oz / 72 g
DUNS #074303253
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