1. Introdución
Thank you for choosing the Audibax Missouri 2000 A Dual VHF Wireless Microphone System. This professional wireless microphone system is designed to deliver clear, interference-free audio for various applications. This manual provides essential information for the safe and efficient use of your new system. Please read it thoroughly before operation and retain it for future reference.
2. Información de seguridade
- Fonte de enerxía: Ensure the receiver is connected to a 230V power supply. Use only the provided power adapter.
- Uso da batería: Microphones operate on AA batteries. Replace batteries when the low battery indicator appears to ensure optimal performance. Do not mix old and new batteries, or different types of batteries.
- Ambiente: Avoid exposing the system to water, moisture, extreme temperatures, or direct sunlight. Operate in a well-ventilated area.
- Manexo: Handle microphones and receiver with care. Avoid dropping or subjecting them to strong impacts.
- Servizo: Non intente abrir nin reparar a unidade vostede mesmo. Encargue calquera mantemento a persoal cualificado.
3. Contido do paquete
Comprobe que todos os elementos que se indican a continuación estean incluídos no seu paquete:
- 1x Audibax Missouri 2000 A Receiver Unit
- 2x Audibax Missouri 2000 A Handheld Wireless Microphones
- 1x Power Adapter for Receiver
- 1 x Manual de usuario
- (AA Batteries for microphones are not included and must be purchased separately)

Figure 3.1: Complete Audibax Missouri 2000 A system including receiver and two microphones.
4. Produto rematadoview
The Audibax Missouri 2000 A is a dual VHF wireless microphone system designed for professional audio applications. It features two high-quality handheld wireless microphones and a receiver unit with independent volume controls and RF/AF indicators.
Características principais:
- Dual VHF wireless system with 2 handheld microphones.
- Receiver with Diversity antennas for improved signal reception and up to 80 meters coverage.
- Clean sound with a signal-to-noise ratio of 105 dB, minimizing interference.
- Independent volume control for each microphone on the receiver.
- RF/AF indicators on the receiver display for monitoring signal status.
- Microphone power via AA batteries, offering extended autonomy.
- Dynamic cardioid microphone capsule for focused sound capture and attenuation of off-axis sounds.
- Output connectors: XLR balanced and auxiliary (MIX) output.

Figure 4.1: Front panel of the receiver unit.

Figure 4.2: Two handheld wireless microphones.
5. Configuración
5.1 Configuración do receptor
- Colocación: Position the receiver unit on a stable, flat surface, away from potential sources of interference (e.g., computers, Wi-Fi routers). Ensure adequate ventilation.
- Conexión antena: Screw the two included antennas firmly into the ANT A and ANT B connectors on the rear of the receiver. Adjust them vertically for optimal signal reception.
- Conexión de alimentación: Connect the provided power adapter to the DC IN port on the rear of the receiver and then plug it into a 230V AC power outlet.
- Saída de audio:
- For a mixed output of both microphones, connect an audio cable (e.g., 6.35mm jack) from the "OUT MIX" port on the receiver to the input of your mixer, amplifier, or sound system.
- For individual balanced outputs, use XLR cables to connect the "BALANCED" XLR output ports (if available on your specific model) to your audio system.

Figure 5.1: Rear panel connections of the receiver unit.
5.2 Configuración do micrófono
- Instalación da batería: Unscrew the bottom part of each microphone to access the battery compartment. Insert two AA batteries, ensuring correct polarity (+/-). Screw the bottom part back on securely.
- Encendido: Slide the ON/OFF switch on each microphone to the "ON" position. The microphone display should illuminate, showing the channel and frequency.
- Función de silencio: Each microphone has a MUTE switch. Use this to temporarily silence the microphone without turning it off completely.
6. Instrucións de funcionamento
6.1 Acendido do sistema
- Ensure all connections (power, audio output) are secure on the receiver.
- Turn on your mixer or amplifier first, with its volume set to minimum.
- Press the power button on the receiver unit. The display will light up.
- Turn on each microphone by sliding its ON/OFF switch to "ON".
- Observe the receiver's display. The "RF" (Radio Frequency) indicator for each channel should light up, indicating a successful connection between the microphone and receiver. The "AF" (Audio Frequency) indicator will light up when sound is detected by the microphone.

Figure 6.1: Receiver display with RF/AF indicators and frequency information.
6.2 Control de volume
- The receiver has independent volume knobs for Microphone A (VOLUME A) and Microphone B (VOLUME B). Adjust these to set the desired output level for each microphone.
- Gradually increase the volume on your mixer or amplificador ao nivel de escoita desexado.
6.3 Frequency Information
The Audibax Missouri 2000 A operates on fixed VHF frequencies. For this specific model, the frequencies are 179.300 MHz and 188.100 MHz. These frequencies are displayed on both the receiver and microphone units.
7. Mantemento
7.1 Limpeza
- Always disconnect the receiver from the power outlet before cleaning.
- Use a soft, dry cloth to wipe the surfaces of the receiver and microphones.
- Non empregue produtos de limpeza líquidos, aerosois nin disolventes, xa que poden danar o acabado ou os compoñentes internos.
7.2 Substitución da batería
- When the microphone's display indicates low battery, replace both AA batteries immediately to avoid interruption during use.
- Asegúrese de manter a polaridade correcta ao inserir pilas novas.
- Elimina as baterías usadas de forma responsable segundo a normativa local.
7.3 Almacenamento
- When not in use for extended periods, remove batteries from the microphones to prevent leakage.
- Garde o sistema nun lugar fresco e seco, lonxe da luz solar directa e de temperaturas extremas.
8 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| Non hai son dos micrófonos |
|
|
| Intermittent sound or signal dropouts |
|
|
| Mala calidade de son / Distorsión |
|
|
| RF indicator not lighting up |
|
|
9. Especificacións
| Característica | Detalle |
|---|---|
| Marca | Audibax |
| Nome do modelo | Missouri 2000 A |
| Número de modelo | 10107904 |
| Tecnoloxía de conectividade | Wireless (VHF), XLR |
| Factor de forma do micrófono | Portátil |
| Patrón polar | Unidireccional (cardioide) |
| Resposta en frecuencia | 40 Hz - 18 kHz |
| Relación sinal-ruído | 105 dB |
| Sensibilidade Audio | 105 decibelios |
| Nivel de ruído | 103 decibelios |
| Receiver Frequencies | 179.300 MHz / 188.100 MHz |
| Fonte de enerxía | Receiver: 230V AC; Microphones: AA Batteries (not included) |
| Número de canles | 2 |
| Rango de operación | Ata 80 metros (línea de visión) |
| Dimensións do produto (LxWxH) | 39 x 31 x 8 cm |
| Peso do elemento | 1.04 quilogramos |
| Usos recomendados | Videoconferencing, Karaoke |
| Compoñentes incluídos | Microphones, Receiver, User Manual |
10. Garantía e soporte
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Audibax customer service directly. Keep your proof of purchase for any warranty claims.





