Features

• Transparent 24-bit digital audio
• Extended 20 Hz to 20 kHz frequency range (microphone dependent)
• 120 dB dynamic range
• Digital predictive switching diversity
• 64 MHz tuning bandwidth (region dependent)
• More than 60 available channels per frequency band (region dependent)
• Up to 17 compatible systems per 6MHz TV band; 22 systems per 8 MHz band
• Easy pairing of transmitters and receivers over IR scan and sync
• Automatic channel scan
• Ethernet networking for multiple receiver systems
• Network channel scanning configures open frequencies for networked receivers
• Compatible with Shure Wireless Workbench 6 control software
• Remote control from a mobile device or tablet via ShurePlus™ Channels app
• AES-256 encryption for secure wireless transmission
• Elegant and easy-to-use interface with high-contrast LCD menu
• Compatible with external control systems such as AMX or Crestron
• Professional-grade all-metal construction
• Transmitters use 2 AA batteries or Shure rechargeable battery

System Components

① QLXD4 Receiver

② PS24 Power Supply

③ 1/2 Wave Antennas (2)

④ 2 ft. BNC Cables with Bulkhead Adapters (2)

⑤ Choice of QLXD1 Bodypack Transmitter or QLXD2 Handheld Transmitter

⑥ AA Alkaline Batteries (not included in Argentina)

⑦ Rackmount Hardware

Single and Dual Rackmount Assembly

Step 1: Power and Antenna Connection

① Connect an antenna to each of the antenna connectors.

② Connect the power supply to the receiver and plug into an AC power source.

③ Connect the receiver audio output to a mixer or amplifier.

④ Press and hold the power button to turn on the receiver.

Step 2: Scanning for the Best Available Channel

1. Press the menu button on the receiver to access the scan function.

   

2. Press the enter button to start a frequency scan. The scan icon will flash while in scan mode. When the scan is complete, the selected group and channel appear on the display.

   

Step 3: Install Batteries into Transmitter

① Accessing the Battery Compartment

Press the side tabs on the bodypack or unscrew the cover on the handheld as shown to access the battery compartment.

② Installing Batteries

• AA batteries: Place batteries (note polarity markings) and AA adapter as shown
• Shure rechargeable battery: Place battery as shown (note polarity markings), remove AA adapter from bodypack transmitter, stow AA adapter in door for handheld transmitter

Note: If using AA batteries, select a battery type from the transmitter menu to ensure accurate battery metering.

Step 4: IR Sync to Create an Audio Channel

1. Turn on the transmitter.
2. Press the sync button on the receiver. The red ir LED will blink indicating that sync mode is active.
3. Align the IR sync windows of the transmitter and receiver at a distance of <15 cm (6 in.). When the transmitter and receiver are aligned, the red ir LED remains on and the sync will automatically occur.

   

4. A success message appears on the display when IR sync is complete. The blue rf LED will illuminate indicating that the transmitter is within range of the receiver.

   Note: If the IR sync fails, repeat the IR sync procedure, carefully maintaining alignment between the IR windows of the transmitter and receiver.

Step 5: Sound Check and Gain Adjustment

1. Test the transmitter at performance levels while monitoring the audio meter and the audio LED. The audio meter should display at least 3 bars and the audio LED should be green. Reduce the gain if there is audible distortion of the audio.
2. Increase or decrease the gain if necessary by pressing the arrow buttons on the receiver front panel.

   

Receiver Front and Back Panels

① Display

Shows menu options, receiver and transmitter settings.

② Arrow Buttons

Adjust gain setting or change menu parameters.

③ Enter Button

Press to save menu or parameter changes.

④ Sync Button

Press to activate IR sync.

⑤ Power Switch

Powers receiver on or off.

⑥ Audio LED

• Green = normal
• Yellow = signal approaching limiter threshold
• Red = limiter engaged to prevent clipping

⑦ Menu Button

• Press to access or select menu screens
• Press to cancel pending changes
• Press and hold to return to the home screen

⑧ RF LED

Illuminates when RF link with transmitter is active.

⑨ IR Window

Align with the transmitter IR window during an IR sync to automatically program transmitters.

⑩ Sync LED

• Blinking: IR sync mode is enabled
• On: Receiver and transmitter aligned for IR sync

⑪ Power Cord Strain Relief

Secures power cord.

⑫ Power Supply Jack

Connection point for DC power supply.

⑬ Ethernet Port

For network connection.

• Amber LED (network speed):

  off = 10 Mbps, on = 100 Mbps

• Green LED (network status):

  off = no network link, on = network link active

  flashing = rate corresponds to traffic volume

⑭ Receiver Reset

Press to restore receiver default settings.

⑮ Antenna Connectors

BNC connector for receiver antennas

⑯ Mic/Line Switch

Sets output level to microphone or line.

⑰ XLR Audio Output

Balanced (1: ground, 2: audio +, 3: audio - )

⑱ 1/4" Instrument/Auxiliary Output

Impedance Balanced (Tip: audio, Ring: no audio, Sleeve: ground)

Receiver Display

① Group

Displays group setting.

② Channel

Displays channel setting.

③ Active Antenna Indicator

Illuminates to indicate which antenna is active.

④ RF Signal Meter

Number of bars displayed corresponds to RF signal level - OL = overload.

⑤ Audio Meter

Number of bars displayed corresponds to audio level.

• OL = Illuminates when receiver audio limiter is active to prevent clipping
• TxOL = Illuminates when transmitter input is overloaded. Reduce input from microphone or instrument to prevent clipping.

⑥ Gain Level

Displays receiver gain setting in 1 dB increments.

⑦ Receiver Lock Status

Lock icon and name of locked control:

• menu
• power
• gain

⑧ Frequency Setting

Selected frequency (MHz).

⑨ Encryption Status

Illuminates when encryption is enabled.

⑩ Scan

Displayed when scan function is active.

⑪ Network Scan

Displayed when network scan function is active in multi-receiver systems.

⑫ Network Connection Indicator

Illuminates when additional Shure components are detected on the network.

⑬ TV Channel

Displays the number of the TV channel containing the selected frequency.

⑭ Transmitter Battery Icon

Indicates remaining battery life.

Enable the Low Battery Alert to flash the receiver display when battery runtime is less than 30 minutes.

⑮ Rechargeable Battery Runtime

When the transmitter is powered by a Shure rechargeable battery, remaining runtime is displayed in hours:minutes.

Navigating the Receiver Menus

The receiver has a main menu for setup and configuration and an advanced menu to access additional receiver functions.

Transmitters

① Power LED

• Green = unit is powered on
• Red = low battery

② On/Off Switch

Powers the transmitter on or off.

③ Display:

View menu screens and settings. Press any control button to activate the backlight.

④ IR window

Align with the receiver IR window during an IR sync for automated transmitter programming.

⑤ Menu Navigation Buttons

menu = Use to navigate between menu screens.

▼▲ = Use to select menu screens, edit menu parameters, or choose a home screen display option.

enter = Press to confirm and save parameter changes.

Tip: Press the menu button to exit without saving parameter changes.

⑥ Battery Compartment

Requires 2 AA batteries or a Shure rechargeable battery.

⑦ AA Battery Adapter

Secures batteries when powering transmitter with AA batteries instead of Shure rechargeable battery.

⑧ Bodypack Antenna

For RF signal transmission.

⑨ Handheld Integrated Antenna

For RF signal transmission.

⑩ Microphone Cartridge

See Optional Accessories for a list of compatible cartridges.

⑪ TA4M Input Jack

Connects to a 4-Pin Mini Connector (TA4F) microphone or instrument cable.

⑫ Battery Contact Cover

Align the cover as shown to prevent reflections from the battery contacts during broadcasts or performances.

Transmitter Display

① Battery Indicator

Bars displayed indicate remaining battery life.

② Home Screen Display: Group and Channel/Frequency/Shure Rechargeable Battery Runtime

Use the arrow keys to select one of the following home screen displays:

Group and Channel	Shure rechargeable battery runtime	Frequency

③ Encryption Status

Icon displayed when encryption is enabled.

④ Lock

Displayed when transmitter controls are locked.

⑤ RF Power

RF power setting (Lo or Hi).

⑥ Mic Offset

Displays mic offset level in 3 dB increments.

Transmitter Menu Options and Navigation

The transmitter features individual menu screens for setting up and adjusting the transmitter. To access the menu options from the home screen, press the menu button. Each additional press of the menu button advances to the next menu screen.

① Home Screen

Use the arrow keys to select one of the following home screen displays:

• Battery Icon/group and channel
• Battery Icon/frequency
• Battery Icon/Battery Runtime (if Shure rechargeable battery is installed)

② group

Use the arrow buttons to scroll through the groups.

③ channel

Use the arrow buttons to scroll through the channels.

④ frequency

Use the arrow buttons to adjust the frequency. Press and hold for faster scrolling.

⑤ lock

Select a lock option:

• On = controls locked
• OFF = controls unlocked

⑥ rf power

Select an rf power setting:

• Lo = 1 mW
• Hi = 10 mW

⑦ mic offset dB

Use to match audio levels between two transmitters used in a combo system. Range is 0 to 21 dB (3 dB increments). Adjustments occur in realtime.

⑧ battery type

Use to set the battery type to match the installed AA battery type to ensure accurate battery metering. Menu is not displayed when Shure rechargeable batteries are installed.

Control Lock Options for the Receiver and Transmitter

Control lock options are available for both the receiver and the transmitter to protect against accidental or unauthorized changes. Locks can be directly set from the component menu, or remotely set from WWB6. To maintain protection, controls remain locked when the transmitter is turned off and turned on.

Setting the AA Battery Type

To ensure accurate display of transmitter runtime, set the battery type in the transmitter menu to match the installed AA battery type. If a Shure rechargeable battery is installed, selecting a battery type is not necessary and the battery type menu will not be displayed.

1. Press the menu button to navigate to the battery icon.
2. Use the ▼▲ buttons to select the installed battery type:
   • AL = Alkaline
   • nH = Nickel Metal Hydride
   • Li = Lithium Primary
3. Press enter to save.

AA Battery Installation

Fully insert the batteries as shown to ensure proper battery contact and to allow the door to latch securely.

Shure SB900 Series Rechargeable Battery

Shure lithium-ion batteries offer a rechargeable option for powering the QLX-D transmitters. Batteries quickly charge to 50% capacity in one hour and reach full charge within three hours.

Single chargers and multiple bay chargers are available to recharge the Shure batteries.

Caution: Only charge Shure rechargeable batteries with a Shure battery charger.

Note:The Shure SB900B rechargeable battery uses SBC200, SBC800 and SBC220 chargers.

Low Battery Alert

The receiver display can be configured to flash when the battery runtime for a transmitter is less than 30 minutes.

The alert displays the following information based on the type of batteries installed in the transmitter:

• Shure rechargeable battery: The receiver screen flashes, the low battery icon is displayed, and the remaining battery runtime is shown
• AA batteries: The receiver screen flashes and the low battery icon is displayed

1. Press menu while holding the enter button to access the advanced menu.
2. Use the arrow buttons to navigate to the Alert screen.
3. Select On or Off to enable or disable the alert function.
4. Press the enter button to save.

Audio Signal Encryption

The QLX-D receiver features Advanced Encryption Standard (AES-256) to protect the audio signal. When encryption is enabled, the receiver generates a unique encryption key which is shared with a the transmitter during an IR sync. Transmitters and receivers that share an encryption key form a protected audio path, preventing unauthorized access by other receivers. To maintain security, components remain encrypted when turned off and on.

Creating Audio Channels

A wireless audio channel is formed when a receiver and transmitter are tuned to the same frequency. To ease setup, frequencies available to the QLX-D system are organized into groups and channels. Each group contains a number of channels, and each channel is assigned to a specific preset frequency.

The QLX-D system provides 3 methods for tuning the receiver and transmitter to the same frequency:

• Scan and IR Sync: The receiver scans the RF spectrum for the best available frequency and an IR sync automatically tunes the transmitter to the receiver frequency
• Manual Group and Channel Assignment: Manually setting the receiver and transmitter to the same group and channel number forms an audio channel
• Manual Frequency Assignment: Manually setting the receiver and transmitter to the same frequency rather than using groups and channels forms an audio channel

Important: Before you begin a scan or frequency assignment:

• Turn off: All transmitters for system you are setting up to prevent interference with frequency scans.
• Turn on: The following potential sources of interference including other wireless systems, computers, CD players, large LED panels, and effects processors to prevent selection of occupied frequencies.

Scan and IR Sync

The simplest way to create an audio channel is to use the scan function to find the best available receiver channel, and then use the IR sync feature to automatically tune the transmitter to the receiver channel.

Step 1: Scanning to Find the Best Channel

The Scan function automatically selects the best available receiver channel.

1. Navigate to the Scan menu option.
2. Press enter to start the scan.
3. When the scan is complete, the channel will appear on the display.

Network Scan

The Network Scan feature automates frequency assignment by using a single receiver to scan and deploy frequencies to all networked receiver within the same frequency band.

Step 2: IR Sync for Automatic Transmitter Set Up

Performing an IR Sync automatically tunes the transmitter to match the receiver frequency, forming a wireless audio channel.

1. Turn on the transmitter.
2. Press the sync button on the receiver. The red ir LED will blink indicating that sync mode is active.
3. Align the IR sync windows of the transmitter and receiver at a distance of <15 cm (6 in.). When the transmitter and receiver are aligned, the red ir LED remains on and the sync will automatically occur.
4. A success message appears on the display when IR sync is complete. The blue rf LED will illuminate, indicating that the transmitter is within range of the receiver.

   Note: If the IR sync fails, repeat the IR sync procedure, carefully maintaining alignment between the IR windows of the transmitter and receiver.

Manual Group and Channel Assignment

An audio channel can be manually created by simply setting the receiver and transmitter to the same group number and channel number. For example, a receiver set to Group 2, Channel 3 and a transmitter set to Group 2, Channel 3 would form an audio channel.

Use manual group and channel configuration to assign specific groups and channels to receivers and transmitters as an alternative method to automatically creating channels with IR sync.

Use the following steps to set the group and channel in the receiver and transmitter:

1. Navigate to the group setting.
2. Use the arrow buttons to scroll through the groups.
3. Press enter to select a group.
4. Next, use the arrow buttons to select a channel.
5. Press enter to save.

Manual Frequency Selection

Manual frequency selection can be used instead of groups and channels to set the transmitter and receiver to a specific frequency. For example, an audio channel can be created by setting the receiver and transmitter to same frequency.

Linking Two Transmitters to a Receiver

Linking two transmitters to a receiver offers the flexibility to provide a performer with either a handheld or bodypack transmitter to meet their preference. For performances requiring instrument changes, two bodypack transmitters can be linked to a single receiver.

Note: Only turn on and operate one transmitter at a time to prevent interference between the transmitters.

Setting the Transmitter RF Power

The transmitter offers two RF power settings which determine the transmitter range.

• Lo = 1 mW
• Hi = 10 mW

Use the Lo setting when the transmitter and receiver are in close proximity.

1. Navigate to the transmitter rf power menu.
2. Use the arrow buttons to select Hi or Lo.
3. Press enter to save.

Using QLX-D with a Shure ULX-D System

Transmitters and receivers from QLX-D and ULX-D component groups can be paired to form audio channels.

To ensure functionality, use the following settings on receivers and transmitters:

• Encryption set to Off
• High Density Mode set to Off (ULX-D receiver)
• Manually tune the receiver and transmitter to the same frequency.

  Note: IR sync between QLX-D and ULXD6/8 transmitters is possible provided you are operating on firmware version 2.1.16 or newer.

To create an audio channel, manually set the receiver frequency to match the frequency of the transmitter.

If using ULXD6 or ULXD8 transmitters with a QLX-D receiver, you can only make changes to transmitter presets using Wireless Workbench.

1. Open receiver properties in WWB.
2. Make changes to transmitter presets and click Apply. The new settings will be sent to the QLX-D receiver.
3. On the receiver front panel, hold enter while pressing menu to enter the advanced menu.
4. Press menu to advance to Preset bn gn. The IR window will flash.

   

5. Align the transmitter IR window with the receiver to send the presets to the transmitter.

Setting Regional TV Channel Spacing

The parameter for TV channel spacing allows the receiver to match regional TV bandwidth usage and accurately display local TV channels.

The following channel bandwidth options are available:

• 6 MHz
• 7 MHz
• 8 MHz
• 6 JP (Japan)
• off (use to turn off TV channel display)

To set the TV channel spacing:

1. Press and hold the enter button, and then press the menu button to access the advanced features menu.
2. Press the menu button to navigate to the TVCH menu.
3. Use the arrow buttons to select the channel bandwidth that corresponds to the local region.
4. Press enter to save.

Custom Groups

Specific channels and frequencies can be selected and placed into custom groups. Custom groups are commonly used to assign networked receivers to a specific range of frequencies or to pre-configure receivers for rental applications. Once a custom group has been created, it can be loaded to the receiver using the group menu.

When network scan is used to assign frequencies from a receiver with a custom group selected, all of custom groups (U1, U2, U3, etc...) from that receiver will be loaded to all other receivers on the network.

Connecting to a Network

1. Insert an Ethernet cable in the Ethernet port on the rear of the receiver.
2. Connect the cable to a computer or router.
3. The port LEDs on the receiver will illuminate to indicate network connectivity and network traffic.

Automatic IP Addressing

1. Enable a DHCP service on the server or use a DHCP enabled router.
2. When the receiver is powered on, the DHCP server will automatically assign an IP address to the receiver.

Tip: Use the network reset option available in the advanced features menu to return the receiver to the default DHCP addressing mode.

Configuration Tips

• Use shielded Cat 5 or better Ethernet cables to ensure reliable network performance
• The LEDs on the Ethernet port illuminate indicating a network connection is active
• The network icon illuminates when the receiver detects additional Shure devices on the network
• All components must operate on the same subnet
• Use multiple Ethernet switches to extend the network for larger installations

Network Troubleshooting

• Use only one DHCP server per network
• All devices must share the same subnet mask
• All receivers must have the same level of firmware revision installed
• Look for the illuminated network icon on the front panel of each device:

  If the icon is not illuminated, check the cable connection and the LEDs on the Ethernet port.

  If the Ethernet port LEDs are not illuminated and the cable is plugged in, replace the cable and recheck the LEDs and network icon.

To check connectivity of WWB6 to the network:

1. Start WWB6 software and use Inventory view to see devices connected to the network.
2. If not, find the IP address from one of the devices on the network (such as a receiver) and see if you can ping it from the computer running WWB6.
3. From a WINDOWS/MAC command prompt, type ‘ping IPADDRESS’ of the device (e.g. "ping 192.168.1.100").
4. If the ping returns success (no packet loss), then the computer can communicate with the device on the network. If the ping returns failure (100% packet loss), then verify that the IP address of the computer is on the same subnet as the receiver.
5. If the pings are successful and the devices still do not show up in the WWB6 inventory, check to ensure all firewalls are either disabled or allow the WWB network traffic to pass to the application. Check that firewall settings are not blocking network access.

Setting the IP Address and Subnet Mask Manually

IP addresses and subnet masks can be manually set from the advanced menu in the receiver or from the monitor panel in Wireless Workbench.

Network settings entered manually must be valid and conform to IP protocols to ensure proper network communication.

Firmware Versioning

When updating receiver firmware, update transmitters to the same firmware version to ensure consistent operation.

The firmware version is numbered in the form of MAJOR.MINOR.PATCH (e.g., 1.2.14). At a minimum, all devices on the network (including transmitters), must have the same MAJOR and MINOR firmware version numbers (e.g., 1.2.x).

Downloading and Updating Firmware

A free Shure Update Utility tool is available by visiting www.shure.com. The Shure Update Utility is also bundled with Shure Wireless Workbench software.

Refer to the help instructions to use the Shure Update Utility.

Updating the Receiver

CAUTION! Ensure that receiver power and network connections are maintained during a firmware update. Do not turn off the receiver until the update is complete.

1. Connect the receiver and computer to the same network.
2. Open the Shure Update Utility.
3. Click on the firmware tab to find available updates.
4. Use the Import button if manually importing firmware files.
5. Click the Update Device tab and check the Version to install box next to each device.
6. Click Send Updates to load the firmware to the networked devices.
7. When the download is complete, the receiver will reboot with the updated firmware installed.

Updating the Transmitter

To update transmitters, download firmware to the receiver. You can download firmware for handheld and bodypack transmitters, or for boundary and gooseneck transmitters. The receiver sends firmware to the transmitter using the IR Sync window.

1. Press menu while holding the enter button to access the advanced menu. Use the menu button to navigate to the update menu.

   

2. The receiver displays the type of transmitter firmware it has available. The receiver holds one type of firmware at a time.
   • HH BP = handheld or bodypack firmware
   • BN GN = gooseneck or boundary firmware
3. Press enter to start the update.
4. When the red IR LED flashes, align the receiver and transmitter IR sync ports. The red LED will remain illuminated to indicate correct alignment and the download will automatically start.
5. Maintain alignment during the update and monitor download progress (0 to 100%) on the receiver screen.

   

6. When the update is complete, "TX Update good" is shown on the receiver display. If the screen shows Err. 09, update again with a transmitter type that matches the firmware held by the receiver.

Error Codes and Solutions

Error codes are generated when the receiver detects a condition that can potentially affect system performance.

If an error is displayed on the receiver, use the following table to identify the problem and find the corresponding solution.

Optional Accessories

Batteries and Chargers

UHF Antenna Power Distribution Amplifiers

UABIAST

In-Line Amplifiers and Antennas

Cables and Connectors

1/2 Wave Omnidirectional Receiver Antennas

Hardware, Cases, and Accessories

QLXD4

QLXD1

QLXD2

Receiver Output Connectors

TA4M Input Connector Diagram

Frequency Range and Transmitter Output Power

LICENSING INFORMATION

Licensing: A ministerial license to operate this equipment may be required in certain areas. Consult your national authority for possible requirements. Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate the equipment. Licensing of Shure wireless microphone equipment is the user’s responsibility, and licensability depends on the user’s classification and application, and on the selected frequency. Shure strongly urges the user to contact the appropriate telecommunications authority concerning proper licensing, and before choosing and ordering frequencies.

Information to the user

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Note: EMC conformance testing is based on the use of supplied and recommended cable types. The use of other cable types may degrade EMC performance.

Please follow your regional recycling scheme for batteries, packaging, and electronic waste.

Australia Warning for Wireless

This device operates under an ACMA class licence and must comply with all the conditions of that licence including operating frequencies. Before 31 December 2014, this device will comply if it is operated in the 520-820 MHz frequency band. WARNING: After 31 December 2014, in order to comply, this device must not be operated in the 694-820 MHz band.

Caution: Avoid operating mobile phones and mobile broadband devices near your wireless system to prevent the possibility of interference.

QLXD1, QLXD2, QLXD4

Meets essential requirements of the following European Directives:

QLXD1, QLXD2

Certified under FCC Part 74.

Certified by ISED in Canada under RSS-102 and RSS-210.

QLXD4

Approved under the Declaration of Conformity (DoC) provision of FCC Part 15.

Conforms to electrical safety requirements based on IEC 60065.