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Edward CurrySep 23, 2025
What to do if Shure BLX1288/P31-H9 Microphone system sound level varies when switching sources?
- RRonald RodriguezSep 23, 2025
Adjust transmitter gain as necessary.
What to do if Shure BLX1288/P31-H9 Microphone system sound level varies when switching sources?
Adjust transmitter gain as necessary.
Why does my Shure BLX1288/P31-H9 Microphone system have audio dropouts?
Audio dropouts or artifacts in your Shure Microphone system can occur if the receiver ready LED is flickering or off. Make sure the receiver and transmitter are positioned within the specified system parameters. The system should be set up within the recommended range and the receiver should be kept away from metallic surfaces. For optimal sound, the transmitter must be used in line of sight from the receiver.
How to fix a Shure BLX1288/P31-H9 Microphone system when the transmitter LED is flashing red?
If the transmitter indicator LED is flashing red on your Shure Microphone system, try these steps: Replace the transmitter batteries. Change the receiver and transmitter to a different group and/or channel. Identify and shut down or remove any nearby sources of RF interference. Replace the transmitter batteries again if necessary.
How to eliminate distortion in my Shure BLX1288/P31-H9?
To eliminate distortion in your Shure Microphone system, reduce the transmitter gain.
What to do if Shure BLX1288/P31-H9 Microphone system sound levels vary between sources?
If you experience sound level variations when switching to different sources with your Shure Microphone system, adjust the transmitter gain as necessary.
What to do if Shure Microphone system has distortion?
If your Shure Microphone system experiences audio distortion, and the audio LED on the receiver indicates overload (red), you should reduce the transmitter gain.
What to do if Shure Microphone system has sound level variations?
If you notice sound level variations when switching to different sources on your Shure Microphone system, adjust the transmitter gain as necessary.
How to troubleshoot no sound on Shure Microphone system?
If your Shure Microphone system produces no sound or only a faint sound, first, check all sound system connections and adjust the gain. Ensure the receiver is properly connected to the mixer or amplifier. If the receiver's ready LED is off, turn on the transmitter, verify the batteries are correctly installed, set up the transmitter, and insert fresh batteries. If the receiver's LED screen is off, ensure the DC adapter is securely plugged into the electrical outlet and that the receiver is powered on. Finally, if the transmitter indicator LED is flashing red, replace the transmitter batteries.
What to do if my Shure BLX1288/P31-H9 has audio artifacts or dropouts?
If you are experiencing audio artifacts or dropouts with your Shure Microphone system, try the following: If the ready LED is flickering or off, change the receiver and transmitter to a different group and/or channel. Identify and remove any nearby sources of RF interference. Replace the transmitter batteries. Ensure the receiver and transmitter are within system parameters. Set up the system within the recommended range and keep the receiver away from metallic surfaces. Ensure the transmitter is in the line of sight from the receiver.
How to fix sound level variations in Shure BLX1288/P31-H9?
To address sound level variations in your Shure Microphone system, adjust the transmitter gain as necessary.
General| System Type | Wireless Microphone System |
|---|---|
| Operating Range | 100 m (300 ft) |
| Total Harmonic Distortion | < 0.5% |
| RF Output Power | 10 mW |
| Receiver Type | Diversity Receiver |
| Battery Life | 14 hours |
| Modulation | FM |
| Transmitter | Bodypack, Handheld |
| Microphone | P31 |
| Receiver | BLX Receiver |
| Frequency Response | 50 Hz - 15 kHz |
| Dynamic Range | 100 dB |
| Receiver Outputs | XLR, 1/4" |
| Simultaneous Channels | Up to 12 |
