BLX Wireless System
Online user guide for Shure BLX wireless system. Version: 5.1 (2022-A)
System Components
Note: Your system comes with a combination of the following components:
- BLX1 Bodypack Transmitter
- BLX2 Handheld Transmitter (choice of SM58, BETA58A, or PG58)
- BLX4 Wireless Receiver
- BLX88 Dual Wireless Receiver
- PS24 Power Supply
- Lavalier microphone (choice of PG185, WL185 or WL93)
- Headworn microphone (choice of PG30, SM31FH or SM35)
- MX153 Earset microphone
- Instrument microphone (BETA98H/C)
- Guitar cable (WA302)
Quick Start Guide
- Connect receiver to power source. [Diagram: A simple illustration showing a wireless receiver unit being plugged into a power adapter and then into a wall outlet.]
- Connect receiver to mixer or amplifier. Hold power button to turn on. [Diagram: An illustration showing the receiver connected via an audio cable to a mixer or amplifier. A hand is shown pressing the power button on the receiver.]
- Press group button on receiver to perform a group scan. [Diagram: Close-up of the receiver's front panel, highlighting the 'Group' button being pressed. An arrow indicates the action.]
- Install batteries and turn on transmitter. [Diagram: Illustration showing the battery compartment of a transmitter being opened, batteries being inserted, and the transmitter being closed and powered on.]
- On the transmitter, set the group and channel to match the receiver. The audio LED on the receiver should illuminate. [Diagram: Shows a transmitter display with group and channel settings (e.g., 'A' and '1'). Another diagram shows the receiver's 'Audio LED' illuminated, indicating a successful connection.]
If setting up additional systems, leave the first transmitter and receiver on. For each additional receiver, manually set the group to match the first receiver. Note: The receiver will automatically perform a channel scan to find an available frequency after the group has been selected. Set the transmitter frequency to match the receiver.
If sound is too faint or distorted, adjust the gain accordingly.
Features - Front Panel
BLX4 Receiver
- ① audio LED: Indicates strength of incoming audio signal: green for normal and red for overload.
- ② ready LED: Green light indicates system is ready for use and receiving transmitter signal.
- ③ LED Display: Displays group and channel setting.
BLX88 Receiver
- (Same LEDs and display as BLX4)
Front Panel Buttons
- ④ group and channel Buttons: Scan: Push and release group button to scan for an open group and channel. Manual: Push and hold group button to select a group. Push channel button to select a channel in the current group.
- ⑤ power Button: Push and hold to turn power on or off.
Back Panel
BLX4 Receiver
- ① DC Power Jack
- ② Adapter Cord Tie-Off
- ③ XLR microphone output jack (MIC out)
- ④ 6.35 mm (1/4") instrument level output jack (instrument out)
BLX88 Receiver
- (Same back panel connectors as BLX4)
BLX1 Bodypack Transmitter
- ① LED Indicator: Displays power and battery status.
- ② power Switch: Toggles power on or off.
- ③ 4-Pin Microphone Input Jack (TA4 connector)
- ④ Antenna
- ⑤ group Button: Changes group setting.
- ⑥ LED Display: Displays group and channel setting.
- ⑦ channel Button: Changes channel setting.
- ⑧ Battery Compartment
- Audio Gain Adjustment: Rotate to increase (+) or decrease (-) the gain until desired level is reached.
BLX2 Handheld Transmitter
- ① LED Indicator: Displays power and battery status.
- ② power Button: Push to turn power on or off.
- ③ group Button: Changes group setting.
- ④ channel Button: Changes channel and gain setting.
- ⑤ LED Display: Displays group and channel setting.
- ⑥ Identification Cap
- ⑦ Battery Compartment
Transmitter LED Indicators
LED Indicator | Status |
---|---|
Green | Ready |
Rapidly Flashing Red | Controls locked |
Solid Red | Battery power low (less than 1 hour remaining*) |
Flashing Red and shuts off | Batteries dead (change batteries to power on transmitter) |
*For alkaline batteries only. For rechargeable batteries, solid red means the batteries are dead.
Single System Set Up
Setting Transmitter Group and Channel
Transmitter group and channel must be manually set to match the receiver.
Group (letter)
- Press and release the group button on the transmitter to activate the display. Press the group button again, display flashes.
- While flashing, press group button again to advance to desired group.
Channel (number)
Follow same procedure using channel button instead of group button.
Notes:
- When group/channel match receiver, ready LED illuminates.
- After manual setup, transmitter alternately displays group/channel for ~2 seconds.
Multiple System Setup
Up to 12 systems can operate simultaneously.
Important: Set up one system at a time. Leave transmitter powered on after tuning.
Setup steps: Turn on all receivers, turn off all transmitters.
For the first receiver:
- Perform a group scan.
- Turn on first transmitter, change group/channel to match receiver.
- Leave transmitter on.
Note: If selected group lacks channels, manually select group "d".
For each additional receiver:
- Use manual setup to match receiver to first receiver's group. Channel scan is automatic.
- Turn on transmitter, change group/channel to match receiver.
- Leave transmitter on.
- Once all receivers are set up, perform audio check on all microphones.
Manually Setting Receiver Group and Channel
Group (letter)
- Hold group button on receiver until display flashes.
- While flashing, press group button to advance to next group. Note: Only group setting displayed during manual setup.
- Release group button when desired group is reached. Receiver performs channel scan.
Channel (number)
Use channel selected by scan. If necessary, set manually using channel button.
Locking and Unlocking Controls
Transmitter (lock/unlock)
Turn on transmitter. Hold group button, press channel button for ~2 seconds. LED flashes red when locked.
Receiver (lock/unlock)
Turn on receiver. Simultaneously hold group and channel buttons. Display flashes rapidly.
- When locked, display flashes rapidly if any key is pressed.
- BLX88 locks on both sides.
Tips to Improve Wireless System Performance
If interference or dropouts occur, try:
- Choose a different receiver channel.
- Reposition receiver for unobstructed line of sight to transmitter.
- Avoid placing transmitter/receiver near metal or dense materials.
- Move receiver to top of equipment rack.
- Remove nearby sources of wireless interference (cell phones, radios, computers, Wi-Fi, DSPs).
- Charge or replace transmitter battery.
- Keep transmitters >2 meters (6 feet) apart.
- Keep transmitter and receiver >5 meters (16 feet) apart.
- During sound check, mark trouble spots and ask performers to avoid them.
Getting Good Sound
Correct Microphone Placement
- Hold microphone within 12 inches of sound source. For warmer sound, move closer.
- Do not cover grille with hand.
Wearing the Headworn Microphone
- Position headworn microphone 13 mm (1/2 in.) from corner of mouth.
- Position lavalier/headworn mics so clothing/jewelry doesn't bump or rub.
Adjusting Gain
Monitor audio LED on receiver front panel.
- Green: normal levels.
- Red: excessive sound levels (overload). Red LED should illuminate infrequently.
BLX1
Rotate audio gain adjustment to increase (+) or decrease (-) gain. For instruments, use minimum gain. For lavaliers, increase gain as desired.
BLX2
Features two gain settings: default and attenuated (-10 dB). Default is for most situations. If receiver audio LED flickers red often, set to attenuated. Use channel button to change gain.
- Hold channel button for 5 seconds. A dot appears on lower right of LED display, indicating -10 dB gain.
- To revert to default, hold channel button for 5 seconds until dot disappears.
Batteries
Expected life for AA batteries: up to 14 hours. Low battery indicated by red LED (~60 mins remaining).
For alkaline batteries only. For rechargeable batteries, solid red means dead.
To remove batteries from handheld transmitter: push out through battery compartment opening.
WARNING: Battery packs shall not be exposed to excessive heat such as sunshine, fire, or the like.
Wearing the Bodypack Transmitter
Clip transmitter to belt or guitar strap as shown. For best results, belt should press against clip base.
Power Off
Hold power button to power off BLX2 or BLX4/88. Slide power toggle switch to OFF for BLX1.
Removing and Installing Identification Caps
BLX2 has a black identification cap (gray cap included with dual vocal systems).
To remove: Remove battery cover, squeeze sides, pull off cap.
To install: Align cap, click into place, replace battery cover.
Identification Cap Kit available as optional accessory.
Troubleshooting
Issue | Indicator Status | Solution |
---|---|---|
No sound or faint sound | Receiver ready LED on | Verify sound system connections or adjust gain. Verify receiver is connected to mixer/amplifier. |
Receiver ready LED off | Turn on transmitter. Ensure batteries are installed correctly. Perform transmitter setup. Insert fresh batteries. | |
Receiver LED screen off | Ensure DC adapter is securely plugged in. Ensure receiver is powered on. | |
Transmitter indicator LED flashing red | Replace transmitter batteries. | |
Audio artifacts or dropouts | Ready LED flickering or off | Change receiver/transmitter to different group/channel. Identify and remove sources of RF interference. Replace transmitter batteries. Ensure receiver/transmitter are positioned correctly. Keep receiver away from metallic surfaces. Use transmitter in line of sight. |
Distortion | Audio LED on receiver indicates overload (red) | Reduce transmitter gain. |
Sound level variations when switching to different sources | N/A | Adjust transmitter gain. |
Receiver/transmitter won't turn off | LED/display flashing rapidly | See Locking and Unlocking Controls. |
Frequency Range and Transmitter Output Level
Band | Range | Output Power |
---|---|---|
G18 | 470 to 494 MHz | 10 mW |
H8 | 518 to 542 MHz | 10 mW |
H8E | 518 to 542 MHz | 10 mW |
H9 | 512 to 542 MHz | 10 mW |
H10 | 542 to 572 MHz | 10 mW |
H10E | 542 to 572 MHz | 10 mW |
H11 | 572 to 596 MHz | 10 mW |
H62 | 518 to 530 MHz | 10 mW |
J10 | 584 to 608 MHz | 10 mW |
J11 | 596 to 616 MHz | 10 mW |
K3E | 606 to 630 MHz | 10 mW |
K12 | 614 to 638 MHz | 10 mW |
K14 | 614 to 638 MHz | 10 mW |
L27 | 674 to 698 MHz | 10 mW |
M15 | 662 to 686 MHz | 10 mW |
M17 | 662 to 686 MHz | 10 mW |
M18 | 694 to 703 MHz | 10 mW |
M19 | 694 to 703 | 10 mW |
Q12 | 748 to 758 | 10 mW |
Q24 | 748 to 758 MHz | 10 mW |
Q25 | 742 to 766 MHz | 10 mW |
R12 | 794 to 806 MHz | 10 mW |
S8 | 823 to 832 MHz | 10 mW |
T11 | 863 to 865 MHz | 10 mW |
Note: Frequency bands might not be available for sale or authorized for use in all countries or regions.
NOTE: This Radio equipment is intended for use in musical professional entertainment and similar applications. This Radio apparatus may be capable of operating on some frequencies not authorized in your region. Please contact your national authority to obtain information on authorized frequencies and RF power levels for wireless microphone products.
เครื่องโทรคมนาคมและอุปกรณ์นี้มีความสอดคล้องตามมาตรฐานหรือข้อกำหนดทางเทคนิคของ กสทช.
Specifications
System
- Working Range: 91 m (300 ft) Line of Sight. Note: Actual range depends on RF signal absorption, reflection and interference.
- Audio Frequency Response: 50 to 15,000 Hz. Note: Dependent on microphone type.
- Total Harmonic Distortion: Ref. ±33 kHz deviation with 1 kHz tone, 0.5%, typical.
Dynamic Range
100 dB, A-weighted, typical.
Operating Temperature
-18°C (0°F) to 57°C (135°F). Note: Battery characteristics may limit this range.
Polarity
Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.
BLX1
- Audio Input Level: max -16 dBV, min (0 dB) +10 dBV.
- Gain Adjustment Range: 26 dB.
- Input Impedance: 1 MΩ.
- RF Transmitter Output: 10 mW, typical (varies by region).
- Dimensions: 4.33 in. X 2.52 in. X 0.83 in. (110 mm X 64 mm X 21 mm) H x W x D.
- Weight: 2.6 oz. (75 g), without batteries.
- Housing: Molded ABS.
- Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline.
- Battery Life: up to 14 hours (alkaline).
BLX2
- Audio Input Level: 0dB -20 dBV, -10dB -10 dBV.
- Gain Adjustment Range: 10 dB.
- RF Transmitter Output: 10 mW, typical (varies by region).
- Dimensions: 8.82 in. X 2.09 in. (224 mm X 53 mm) L x Dia.
- Weight: 7.7 oz. (218 g) without batteries.
- Housing: Molded ABS.
- Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline.
- Battery Life: up to 14 hours (alkaline).
BLX4
- Output Impedance: XLR connector 200 Ω, 6.35 mm (1/4") connector 50 Ω.
- Audio Output Level: Ref. ±33 kHz deviation with 1 kHz tone. XLR connector -27 dBV (into 100 kΩ load), 6.35 mm (1/4") connector -13 dBV (into 100 kΩ load).
- RF Sensitivity: -105 dBm (for 12 dB SINAD, typical).
- Image Rejection: >50 dB, typical.
- Dimensions: 1.57 in. X 7.40 in. X 4.06in. (40 mm X 188 mm X 103 mm) H x W x D.
- Weight: 8.5 oz. (241 g).
- Housing: Molded ABS.
- Power Requirements: 12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by external power supply (tip positive).
BLX88
- Output Impedance: XLR connector 200 Ω, 6.35 mm (1/4") connector 50 Ω.
- Audio Output Level: Ref. ±33 kHz deviation with 1 kHz tone. XLR connector -27 dBV (into 100 kΩ load), 6.35 mm (1/4") connector -13 dBV (into 100 kΩ load).
- RF Sensitivity: -105 dBm (for 12 dB SINAD, typical).
- Image Rejection: >50 dB, typical.
- Dimensions: 1.50 in. X 12.13 in. X 3.98in. (38 mm X 308 mm X 101 mm) H x W x D.
- Weight: 15.1 oz. (429 g).
- Housing: Molded ABS.
- Power Requirements: 12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by external power supply (tip positive).
IMPORTANT SAFETY INSTRUCTIONS
- READ these instructions.
- KEEP these instructions.
- HEED all warnings.
- FOLLOW all instructions.
- DO NOT use this apparatus near water.
- CLEAN ONLY with dry cloth.
- DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in accordance with the manufacturer's instructions.
- DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not place any open flame sources on the product.
- DO NOT defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wider blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- PROTECT the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- ONLY USE attachments/accessories specified by the manufacturer.
- USE only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
- UNPLUG this apparatus during lightning storms or when unused for long periods of time.
- REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
- DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vases, on the apparatus.
- The MAINS plug or an appliance coupler shall remain readily operable.
- The airborne noise of the Apparatus does not exceed 70dB (A).
- Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection.
- To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
- Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
- Operate this product within its specified operating temperature range.
⚡ This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
ℹ️ This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit.
WARNING: Danger of explosion if incorrect battery replaced. Operate only with AA batteries.
Certifications
Meets essential requirements of the following European Directives:
- WEEE Directive 2012/19/EU, as amended by 2008/34/EC.
- RoHS Directive EU 2015/863.
Note: Please follow your regional recycling scheme for batteries and electronic waste.
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.
CE Notice: Hereby, Shure Incorporated declares that this product with CE Marking has been determined to be in compliance with European Union requirements. The full text of the EU declaration of conformity is available at the following site: https://www.shure.com/en-EU/support/declarations-of-conformity.
Authorized European representative:
Shure Europe GmbH
Department: Global Compliance
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
Email: EMEAsupport@shure.de
Certified under FCC Part 74.
- DD4BLX1A, DD4BLX1B, DD4BLX1C, DD4BLX1D; DD4BLX2A, DD4BLX2B, DD4BLX2C, DD4BLX2D, DD4BLX1W, DD4BLX1S, DD4BLX2W, DD4BLX2S, DD4BLX1H11, DD4BLX2H11, DD4BLX1J11, DD4BLX2J11.
Certified by ISED in Canada under RSS-102 and RSS-210.
- 616A-BLX1A, 616A-BLX1B, 616A-BLX1C, 616A-BLX1D; 616A-BLX2A, 616A-BLX2B, 616A-BLX2C, 616A-BLX2D, 616A-BLX1H11, 616A-BLX2H11, 616A-BLX1J11, 616A-BLX2J11.
Certified by ISED in Canada under RSS-123 and RSS-102.
- 616A-BLX1W, 616A-BLX1S, 616A-BLX2W, 616A-BLX2S.
Approved under the Declaration of Conformity (DoC) provision of FCC Part 15.
低功率射頻器材技術規範 取得審驗證明之低功率射頻器材,非經核准,公司、商號或使用者均不得擅 自變更頻率、加大功率或變更原設計之特性及功能。低功率射頻器材之使用 不得影響飛航安全及干擾合法通信;經發現有干擾現象時,應立即停用,並 改善至無干擾時方得繼續使用。前述合法通信,指依電信管理法規定作業之 無線電通信。低功率射頻器材須忍受合法通信或工業、科學及醫療用電波輻 射性電機設備之干擾。
Important Product Information
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:
- This device may not cause harmful interference.
- 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.
Canada Warning for Wireless
This device operates on a no-protection, no-interference basis. Should the user seek to obtain protection from other radio services operating in the same TV bands, a radio licence is required. For further details, consult Innovation, Science and Economic Development Canada's document Client Procedures Circular CPC-2-1-28, Voluntary Licensing of Licence-Exempt Low-Power Radio Apparatus in the TV Bands.
Ce dispositif fonctionne selon un régime de non-brouillage et de non-protection. Si l'utilisateur devait chercher à obtenir une certaine protection contre d'autres services radio fonctionnant dans les mêmes bandes de télévision, une licence radio serait requise. Pour en savoir plus, veuillez consulter la Circulaire des procédures concernant les clients CPC_2_1_28, Délivrance de licences sur une base volontaire pour les appareils radio de faible puissance exempts de licence et exploités dans les bandes de télévision d'Innovation, Sciences et Développement économique Canada.
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:
- This device may not cause interference.
- This device must accept any interference, including interference that may cause undesired operation of the device.
L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes :
- L'appareil ne doit pas produire de brouillage;
- L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Industry Canada ICES-003 Compliance Label: CAN ICES-3 (B)/NMB-3(B).
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.
Changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment.
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.