вступ
The Shure BLX14/P31 is a wireless headset audio system designed for reliable performance in various applications, including presentations, instruction, and live performances. This system operates on the H10 UHF frequency band (542–572 MHz) and provides hands-free audio capture with a comfortable headset microphone.
The system includes a BLX4 single-channel receiver, a BLX1 bodypack transmitter, and a PGA31 cardioid headset microphone. It offers a wireless range of up to 300 ft (100 m) line-of-sight and the bodypack transmitter provides up to 14 hours of operation on two AA batteries.

Для загального надview of the Shure BLX Wireless Systems, please watch the video below:
Video: Shure BLX Wireless Systems - Overview. This video provides a general introduction to the BLX wireless microphone systems.
Налаштування
Розпакування та компоненти
Before setting up your system, ensure all components are present:
- Одноканальний приймач BLX4
- Передавач натільного пакета BLX1
- PGA31 Cardioid Headset Microphone with windscreen and clothing clip
- Джерело живлення
- 2 батарейки АА
- Посібник користувача

BLX4 Receiver Setup
1. Підключіть живлення: Securely connect the included power supply to the BLX4 receiver's power input and plug it into an AC outlet.

2. Підключіть аудіовихід: Connect the receiver's XLR or 1/4-inch output to your mixer or ampвнесок ліфіера.
For detailed instructions on setting up the receiver, please refer to the video below:
Video: Shure BLX Wireless Systems - How to Setup a Receiver. This video guides you through the process of connecting and powering on your BLX receiver.
BLX1 Bodypack Transmitter and PGA31 Headset Setup
1. Встановіть акумулятори: Open the battery compartment on the BLX1 bodypack and insert the two supplied AA batteries, observing correct polarity.

2. Connect Headset Microphone: Plug the 4-pin mini-XLR connector of the PGA31 headset microphone into the input jack on the top of the BLX1 bodypack transmitter.


For detailed instructions on setting up the transmitter, please refer to the video below:
Video: Shure BLX Wireless Systems - How to Setup a Transmitter. This video demonstrates how to install batteries and connect a microphone to your BLX transmitter.
Інструкція з експлуатації
Powering On and Channel Selection
1. Живлення приймача: Press the power button on the BLX4 receiver. The display will illuminate.

2. Увімкнення передавача: Slide the power switch on the BLX1 bodypack transmitter to the ON position. The LED indicator will light up.

3. Scan for Best Channel: On the BLX4 receiver, press the Group button to initiate a group scan. The receiver will automatically select the clearest available group and channel. Once a group is selected, press the Channel button to scan for the best channel within that group.
4. Sync Transmitter: With the BLX1 bodypack transmitter powered on and its battery compartment open, press and hold the Group button on the transmitter until the IR LED flashes. Align the IR windows of the receiver and transmitter (located on the front of the receiver and inside the bodypack's battery compartment) until the transmitter's LED changes from flashing to solid green, indicating a successful sync.
For guidance on choosing the best channel, watch this video:
Video: Shure BLX Wireless Systems - How to Choose the Best Channel. This video explains how to scan for and select the optimal frequency channel for your system.
To add additional receivers to your system, refer to this video:
Video: Shure BLX Wireless Systems - How to Add a Receiver. This video demonstrates the steps to integrate additional BLX receivers into your existing setup.
Performing a Soundcheck
1. Speak into Microphone: With both the receiver and transmitter powered on and synced, speak or sing into the PGA31 headset microphone at your typical performance volume.
2. Monitor Audio LED: Observe the Audio LED on the BLX4 receiver. It should illuminate green for normal audio levels. If the LED is consistently red, the input signal is too strong, and you may need to adjust the transmitter gain.
3. Adjust Transmitter Gain (if necessary): If the Audio LED is consistently red, locate the gain adjustment switch inside the BLX1 bodypack transmitter's battery compartment. Use a small screwdriver or pick to adjust the gain to a lower setting until the Audio LED on the receiver primarily shows green with occasional red peaks.
For a visual guide on performing a soundcheck, see the video below:
Video: Shure BLX Wireless Systems - How to Perform a Soundcheck. This video demonstrates how to check audio levels and adjust transmitter gain for optimal sound.
Frequency Band Information
This system operates on the H10 band (542-572 MHz). Ensure this frequency band is authorized for use in your region. Refer to the Shure website for a frequency finder and local compliance information.

Технічне обслуговування
To ensure the longevity and optimal performance of your Shure BLX14/P31 system, follow these maintenance guidelines:
- Прибирання: Use a soft, dry cloth to clean the exterior surfaces of the receiver and transmitter. Do not use abrasive cleaners or solvents. For the PGA31 headset microphone, gently wipe the boom and earpieces. Replace the foam windscreen if it becomes worn or dirty.
- Догляд за акумулятором: Always remove AA batteries from the BLX1 bodypack transmitter if the system will not be used for an extended period to prevent leakage and damage.
- Зберігання: Store the system components in a cool, dry place, away from direct sunlight and extreme temperatures.
- Перевірка кабелю: Періодично перевіряйте всі кабелі на наявність ознак зносу, протертості або пошкоджень. Негайно замінюйте будь-які пошкоджені кабелі.
Усунення несправностей
If you encounter issues with your Shure BLX14/P31 system, try the following troubleshooting steps:
- Без звуку:
- Переконайтеся, що і приймач, і передавач увімкнені.
- Verify that the receiver's 'Ready' LED is illuminated green, indicating a strong RF signal.
- Check that the transmitter and receiver are synced to the same group and channel. Re-sync if necessary.
- Confirm that the audio output cable from the receiver is securely connected to your mixer/amplifier and that the input channel is active and unmuted.
- Check the batteries in the BLX1 bodypack transmitter. Replace if low or depleted.
- Перешкоди/Випадки:
- Perform a fresh channel scan on the receiver to find a clearer frequency.
- Ensure the receiver antennas are unobstructed and positioned for optimal line-of-sight with the transmitter.
- Move the receiver away from other wireless devices, Wi-Fi routers, or large metal objects that could cause interference.
- Ensure you are within the specified operating range (up to 300 ft line-of-sight).
- Спотворений звук:
- Check the Audio LED on the receiver. If it's consistently red, the transmitter gain is too high. Adjust the gain switch inside the BLX1 bodypack's battery compartment to a lower setting.
- Verify that the input gain on your mixer/amplifier is not set too high.
- Короткий термін служби батареї:
- Ensure you are using fresh, high-quality AA alkaline batteries.
- Battery life can vary based on usage and battery type.
Технічні характеристики
| Особливість | Специфікація |
|---|---|
| Номер моделі | BLX14/P31-H10 |
| Діапазон частот | H10 (542–572 MHz) |
| Дальність бездротового зв'язку | Up to 300 ft (100 m) line-of-sight |
| Battery Life (BLX1) | Up to 14 hours (with 2 AA batteries) |
| Compatible Systems per Band | До 12 |
| Тип мікрофона | PGA31 Cardioid Headset Condenser |
| Вихідні роз'єми приймача | XLR, 1/4-inch (6.3 mm) |
| Transmitter Input Connector | 4-контактний mini-XLR |
| Джерело живлення | Живлення від батарейок (2 батарейки типу АА в комплекті) |
| Співвідношення сигнал-шум | 76 дБ |
| Вага товару | 2.8 фунта |
| Розміри предмета | 13.5 x 12 x 4 дюймів |
Інформація про гарантію
The Shure BLX14/P31 Headset Audio System is covered by a 2 рік обмеженої гарантії from the date of purchase. This warranty covers defects in materials and workmanship under normal use. For full details regarding warranty terms, conditions, and how to make a claim, please refer to the official warranty document provided with your product or visit the Shure webсайт.
Підтримка
Для отримання додаткової допомоги, технічної підтримки або інформації про продукт, будь ласка, скористайтеся такими ресурсами:
- Офіційний посібник користувача (PDF): A detailed PDF version of the user manual is available for download. Завантажити посібник користувача
- Шуре Webсайт: Visit the official Shure website for product registration, FAQs, software downloads, and contact information for customer support. Www.shure.com
- Інтернет-підтримка: Many common questions and troubleshooting tips can be found on the Shure support pages.