BLXWireless System
Online user guide for Shure BLX wireless system.Version: 5.0 (2021-G)
BLX Wireless SystemSystem 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
- a. Connect the receiver to the power source.
b. Connect the receiver to the mixer or amplifier. Hold the power button to turn on. - Press the group button on the receiver to perform a group scan.
- a. Install batteries and turn on the transmitter.b. On the transmitter set the group and channel to match the receiver. The audio LED on the receiver should illumi Nate.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 fre quency to match the receiver.
- If the sound is too faint or distorted, adjust the gain accordingly.
b. Connect the receiver to the mixer or amplifier. Hold the power button to turn on.
b. On the transmitter set the group and channel to match the receiver. The audio LED on the receiver should illumi Nate.
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 fre quency to match the receiver.Features
FeaturesFront Panel
① audio LEDIndicates the strength of incoming audio signal: green for normal and red for overload.② ready LEDGreenlight indicates the system is ready for use and receiving transmitter signal.③ LED DisplayDisplays group and channel setting.④ group and channel ButtonsScan: Push and release group button to scan for an open group and channel.Manual: Push and hold the group button to select a group. Push the channel button to select a channel in the current group.⑤ power ButtonPush and hold to turn the power on or off.Back Panel
① DC Power Jack② Adapter Cord Tie-Off③ XLR microphone output jack (MIC out)④ 6.35 mm (1/4″) instrument level output jack (instrument out)BLX1① LED IndicatorDisplays power and battery status (see Transmitter LED Indicators).② power SwitchToggles power on or off.③ 4-Pin Microphone Input Jack (TA4 connector)④ Antenna⑤ group ButtonChanges group setting.⑥ LED DisplayDisplays group and channel setting.⑦ channel ButtonChanges channel setting.⑧ Battery Compartment⑨ Audio Gain AdjustmentRotate to increase or decrease transmitter gain.
BLX2① LED IndicatorDisplays power and battery status (see Transmitter LED Indicators).② power ButtonPush to turn the power on or off.③ group ButtonChanges group setting.④ channel ButtonChanges channel and gain setting.⑤ LED DisplayDisplays group and channel setting.⑥ Identification Cap⑦ 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) |
Single System Set-Up
Before you begin, turn off all transmitters and turn on any equipment (other microphones or personal monitoring systems) that could cause interference during the performance.
- Press and release the group button on the receiver.The receiver scans for the clearest group and channel.Note: If you want to stop the scan, push the group button again.
- Turn on the transmitter and change the group and channel to match the receiver (See Setting Transmitter Group and Chan nel).Once the system is set up, perform an audio check and adjust the gain if necessary.
Setting Transmitter Group and Channel
The 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 and the dis play flashes.
- While the display is flashing, press the group button again to advance to the desired group setting.
Channel (number)If the channel needs to be changed, follow the same procedure using the channel button instead of the group button.Note:
- When the group and channel correctly match the receiver, the ready LED on the receiver illuminates.
- After manual setup, the transmitter alternately displays the group and channel setting for about two seconds.
Multiple System Setup
Up to 12 systems can operate simultaneously (band and RF environment dependent).Important: Set up each system one at a time. Once a receiver and transmitter are tuned to the same group and channel, leave the transmitter powered on.Otherwise, scans from the other receivers will not detect that channel as occupied. For the BLX88, be sure to set up both transmitters before progressing to the next receiver.Turn on any other equipment that could cause interference during the performance so it will be detected during the group and channel scans in the following steps.Before you begin system set up, turn all receivers ON and all transmitters OFF.For the first receiver:
- Perform a group scan.This finds the group with the clearest channels.Note: For the BLX88, the group scan sets up both receivers at the same time.
- Turn on the first transmitter and change the group and channel to match the receiver.
- Leave the transmitter on and continue with the additional systems.
Note: If the selected group does not contain enough open channels, manually select group “d” when setting up larger systems.For each additional receiver:
- Use manual setup to change the receiver to match the group setting of the first receiver. Recall that each time the group setting is changed, a channel scan is automatically done.
- Turn on the transmitter and change the group and channel to match the receiver.
- Leave the transmitter on and continue to the next system.
- Once all receivers are set up, perform an audio check on all microphones.
Manually Setting Receiver Group and Channel
The receiver group may need to be changed as part of a multiple system setup.Group (letter)
- Hold the group button on the receiver until the display begins to flash.
- While the display is flashing, press the group button again to advance to the next group.Note: Only the group setting will be displayed during the manual setup.
- Once the desired group is reached, release the group button. The receiver automatically performs a channel scan.
Channel (number)Always use a channel selected by the channel scan. However, if necessary, the channel can be set manually. Follow the same steps above using the channel button instead of the group button.
Locking and Unlocking Controls
Lock system controls to prevent accidental setting changes or power off.Transmitter (lock/unlock)Turn the transmitter on. Hold the group button, then press the channel button for approximately 2 seconds. The LED indicator rapidly flashes red when locked.Receiver (lock/unlock)Turn the receiver on. Simultaneously hold the group and channel button. The display flashes rapidly.
- When locked, the display flashes rapidly if any key is pressed.
- The BLX88 locks on both sides when locked from either side.
Tips to Improve Wireless System Performance
If you encounter interference or dropouts, try the following suggestions:
- Choose a different receiver channel
- Reposition the receiver so there is nothing obstructing a line of sight to the transmitter (including the audience)
- Avoid placing transmitter and receiver where metal or other dense materials may be present
- Move the receiver to the top of the equipment rack
- Remove nearby sources of wireless interference, such as cell phones, two-way radios, computers, media players, Wi-Fi devices, and digital signal processors
- Charge or replace the transmitter battery
- Keep transmitters more than two meters (6 feet) apart
- Keep the transmitter and receiver more than 5 meters (16 feet) apart
- During soundcheck, mark trouble spots and ask presenters or performers to avoid those areas
Getting Good Sound
Correct Microphone Placement
- Hold the microphone within 12 inches from the sound source. For a warmer sound with increased bass presence, move the microphone closer.
- Do not cover the grill with your hand.
Wearing the Headworn Microphone
- Position the headword microphone 13 mm (1/2 in.) from the corner of your mouth.
- Position lavalier and head-worn microphones so that clothing, jewelry, or other items do not bump or rub against the micro phone.
Adjusting Gain
Monitor the audio LED indicator on the receiver front panel when setting the transmitter gain.
- Green: normal levels
- Red: excessive sound levels (overload).
The red LED should only illuminate infrequently when you speak loudly or play your instrument loudly.BLX1Rotate the audio gain adjustment to increase (+) or decrease (−) the gain until the desired level is reached.For instruments, turn gain to the minimum setting. For lavaliers, increase the gain as desired.
BLX2The BLX2 features two gain level settings, default and attenuated (-10 dB). The default setting is used for most situations. If the receiver audio LED flickers red often, set the microphone to attenuated. Use the channel button to change the gain setting.
- Hold down the channel button for 5 seconds.A dot appears on the lower righthand corner of the LED display, which indicates −10 dB gain setting has been activated.
- To change the gain back to default, hold the channel button again for 5 seconds, or until the dot disappears.
Batteries
The expected life for AA batteries is up to 14 hours (total battery life varies depending upon battery type and manufacturer).When the LED indicator turns red, it signifies “low battery” with approximately 60 minutes of remaining battery life.For alkaline batteries only. For rechargeable batteries, solid red means the batteries are dead.To remove batteries from the handheld transmitter, push them out through the opening in the microphone battery compartment.
WARNING: Battery packs shall not be exposed to excessive heat such as sunshine, fire, or the like.
Wearing the Bodypack Transmitter
Clip the transmitter to a belt or slide a guitar strap through the transmitter clip as shown.For best results, the belt should be pressed against the base of the clip.
Power Off
Hold down the power button to power off the BLX2 or BLX4/88. To power off the BLX1, slide the power toggle switch to OFF.
Removing and Installing Identification Caps
The BLX2 is equipped with a black identification cap from the factory (dual vocal systems ship with an additional gray cap).To remove: Remove the battery cover. Squeeze sides and pull off cap.To install: Align the cap and click it into place. Replace the battery cover.An Identification Cap Kit containing assorted colored caps is available as an optional accessory.
Troubleshooting
| Issue | Indicator Status | Solution |
| No sound or a faint sound | Receiver ready LED on | Verify all sound system connections or adjust gain as needed (see Adjusting Gain)Verify that the receiver is connected to the mixer/amplifier |
| Receiver ready LED off | Turn on transmitterMake sure the batteries are installed correctly Perform transmitter setup (see Single System Setup)Insert fresh batteries | |
| Receiver LED screen off | Make sure the DC adapter is securely plugged into an electrical outlet. Make sure the receiver is powered on. | |
| Transmitter indicator LED flashing red | Replace transmitter batteries (see Changing Batteries). | |
| Audio artifacts or dropouts | Ready LED flickering or off | Change receiver and transmitter to a different group and/or channel.Identify nearby sources of RF interference, and shut down or remove the source.Replace transmitter batteries.Ensure that receiver and transmitter are positioned with in the system parameters system must be set up within recommended range and receiver kept away from metallic surfaces.The transmitter must be used in the line of sight from the receiver for optimal sound |
| Distortion | Audio LED on receiver indi cates overload (red) | Reduce transmitter gain (see Adjusting Gain). |
| Sound level variations when switching to different sources | N/A | Adjust transmitter gain as necessary (see Adjusting Gain). |
| The 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 |
| H1OE | 542 to 572 MHz | 10 mW |
| H11 | 572 to 596 MHz | 10 mW |
| H62 | 518 to 530 MHz | 10 mW |
| .110 | 584 to 608 MHz | 10 mW |
| 311 | 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.
Specifications
SystemWorking Range91 m (300 ft) Line of SightAudio Frequency Response50 to 15,000 HzTotal Harmonic DistortionRef. ±33 kHz deviation with 1 kHz tone0.5%, typicalDynamic Range100 dB, Aweighted, typical
Operating Temperature-18°C (0°F) to 57°C (135°F)PolarityPositive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) proces positive voltage on pin 2 (with respect to pin 3 of lowimpedance output) and the tip of the high impedance 1/4-inch output.BLX1
Audio Input Level
| max | 16 dB maximum |
| min (0 dB) | +10 dB maximum |
Gain Adjustment Range26 dBInput Impedance1 MΩRF Transmitter Output10 mW, typicalDimensions4.33 in. X 2.52 in. X 0.83 in. (110 mm X 64 mm X 21 mm) H x W x DWeight2.6 oz. (75 g), without batteriesHousingMolded ABSPower Requirements2 LR6 AA batteries, 1.5 V, alkalineBattery Lifeup to 14 hours (alkaline)
BLX2Audio Input Level
| 0dB | 20 dB maximum |
| -10dB | 10 dB maximum |
Gain Adjustment Range10 dB
RF Transmitter Output10 mW, typicalDimensions8.82 in. X 2.09 in. (224 mm X 53 mm) L x Dia.Weight7.7 oz. (218 g) without batteriesHousingMolded ABSPower Requirements2 LR6 AA batteries, 1.5 V, alkalineBattery Lifeup to 14 hours (alkaline)BLX4Output Impedance
| XLR connector | –27 dB (into 100 kΩ loads) |
| 6.35 mm (1/4″) connector | –13 dBV (into 100 kΩ load) |
RF Sensitivity105 dBm for 12 dB SINAD, typicalImage Rejection>50 dB, typicalDimensions1.57 in. X 7.40 in. X 4.06in. (40 mm X 188 mm X 103 mm) H x W x DWeight8.5 oz. (241 g)HousingMolded ABS
Power Requirements12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by an external power supply (tip positive)BLX88Output Impedance
| XLR connector | 200 Ω |
| 6.35 mm (1/4″) connector | 50 Ω |
Audio Output LevelRef. ±33 kHz deviation with 1 kHz tone
| XLR connector | –27 dB (into 100 kΩ loads) |
| 6.35 mm (1/4″) connector | –13 dBV (into 100 kΩ load) |
RF Sensitivity105 dBmfor 12 dB SINAD, typicalImage Rejection>50 dB, typicalDimensions1.50 in. X 12.13 in. X 3.98in. (38 mm X 308 mm X 101 mm) H x W x DWeight15.1 oz. (429 g)HousingMolded ABSPower Requirements12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by an 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 a 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 (in 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 rounding-type plug has two blades and a third grounding prong. The wider blade or the third prong is 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.
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 2015/863Note: 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. Hereby, Shure Incorporated declares that the radio equipment is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: http://www.shure.com/europe/complianceAuthorized European representative:Shure Europe GmbHHeadquarters Europe, Middle East & AfricaDepartment: EMEA ApprovalJakob-Dieffenbacher-Str. 1275031 Eppingen, GermanyPhone: +49-7262-92 49 0Fax: +49-7262-92 49 11 4Email: [email protected]Certified under FCC Part 74.
- DD4BLX1A, DD4BLX1B, DD4BLX1C, DD4BLX1D; DD4BLX2A, DD4BLX2B, DD4BLX2C, DD4BLX2D, DD4BLX1W, DD4BLX1S, DD4BLX2W, DD4BLX2S, DD4BLX1H11, DD4BLX2H11, DD4BLX1J11, DD4BLX2J11Certified 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, 616ABLX1H11, 616A-BLX2H11, 616A-BLX1J11, 616A-BLX2J11Certified by ISED in Canada under RSS-123 and RSS-102.
- 616A-BLX1W, 616A-BLX1S, 616A-BLX2W, 616A-BLX2SApproved under the Declaration of Conformity (DoC) provision of FCC Part 15.
Important Product Information
LICENSING INFORMATIONLicensing: 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 licens ability de pends 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 userThis 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 noprotection, nointerference basis. Should the user seek to obtain protection from other radio ser vices operating in the same TV bands, a radio license is required. For further details, consult Innovation, Science, and Econom ic Development Canada’s document Client Procedures Circular CPC2128, Voluntary Licensing of LicenceExempt LowPower, Radio Apparatus in the TV Bands.This device contains licenceexempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licenceexempt 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.
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 WirelessThis device operates under an ACMA class license and must comply with all the conditions of that license 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.
References
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