Introducció
The WONDOM KAB9 is an 8-channel audio amplifier board designed for various audio systems, including 7.1, 6.1, 5.1, 4.2, and 4.0 configurations. It delivers 50W per channel, with a peak output of 100W per channel when equipped with a fan. This board features a 7.1 USB codec digital input, ensuring high-quality audio playback without ground noise, and is compatible with both Windows and Linux systems. Its robust design incorporates industrial-grade components for high reliability and stability, making it suitable for applications such as game machines and arcade equipment.
Figure 1: WONDOM KAB9 Audio AmpJunta més viva
Característiques clau
- Àudio de 8 x 50 W Ampmés viu
- Higher Output Power with Fan Installed (8 x 100W Peak)
- Configuració independent PBTL/BTL de quatre estèreo AmpXips lificadors
- Supports Multiple Output Modes: 8.0 / 6.1 / 4.2 / 4.0
- Supports External Plug-and-Play Modules as Daughter Boards
- Còdec USB 7.1 com a entrada d'àudio
- Five Level Gain Adjustable through Switch
- Shutdown, Mute, and Synchronize Control
- Protecció contra sobreintensitat
- Pes: 168 g / 0.37 lliures (± 10%)
- Size: 6.0 x 4.5 x 1.8 inches (152.4mm x 114.3mm)
Instruccions de configuració
Follow these steps to set up your KAB9 amptauler de vidació:
- Instal·lació del controlador:
In the Device Manager, under 'Sound, video, and game controllers', locate KAB9 and update the USB driver. A Windows 10 driver can be downloaded from: http://files.sure-electronics.com/download/Win10Driver.zip
- USB Codec Configuration:
Configure the 7.1 Surround sound settings and test if all 8 channels are working properly. For detailed steps, refer to the video linked in step 5.
Figure 2: 7.1 USB Codec Digital Input Overview
- Àudio File Preparació:
Prepare an audio file in 7.1 format. You can use sample music provided at: http://files.sure-electronics.com/download/8CH.zip
- Reproductor de música:
Use a music player that supports 8-channel (7.1) audio files, such as 'PotPlayer', to play the prepared audio.
- General Setup Video:
A video demonstrating setup precautions for a similar board (GAB8) can be found here. The precautions are highly relevant to KAB9: Enllaç de vídeo de YouTube
Video Description: This video provides general setup precautions for a similar audio amplifier board, which are applicable to the KAB9.
- Diagrama de connexió:
Refer to the detailed connection diagram for proper wiring of power supply, audio input, audio output, and control pins.
Figure 3: KAB9 Connection Diagram
For a comprehensive user manual, please refer to the PDF document: KAB9 User Manual PDF
Funcionament
The KAB9 amplifier board offers flexible configuration and control options:
- Configuracions de sortida: The board can be configured for various output modes using on-board switches, eliminating the need for complex soldering. Supported configurations include:
- 8.0 mode (8 x 50W) for 8.0/7.1/6.2 audio systems.
- 6.1 mode (6 x 50W + 1 x 100W) for 6.0/5.1 systems.
- 4.2 mode (4 x 50W + 2 x 100W) for 4.2 systems.
- 4.0 mode (4 x 100W) for 4.0 systems.
Figure 4: KAB9 Output Configurations
- Ajust de guany: El amplifier features a five-level gain adjustment, configurable via a switch on the board.
- Funcions de control: The board supports Shutdown, Mute, and Synchronize control functionalities.
Especificacions
Especificacions generals
Figure 5: KAB9 General Specifications
Especificacions de rendiment d'àudio
Figure 6: KAB9 Audio Performance Specifications
Característiques de rendiment
The KAB9 amplifier board undergoes rigorous testing to ensure optimal performance. Key performance characteristics are illustrated below:
Figure 7: Noise Floor (RMS Level vs. Frequency) - VDD=20V, Pout=0W, Rload=4Ω, Input Shorted to GND, A-weighting Filter.
Figure 8: Gain (dB vs. Frequency) - VDD=20V, Pout=5W, Rload=4Ω.
Figure 9: THD+N Ratio (%) vs. Frequency - VDD=20V, Pout=2x10W, Rload=4Ω.
Figure 10: Burn-in Test Thermal Image - VDD=24V, Pout=8x10W, Rload=4Ω, 3min test, Ta=25°C.
Maintenance and Reliability
The KAB9 is designed for high reliability and stability, especially for industrial applications. It incorporates robust heatsinks for effective heat dissipation and high-performance capacitors for filtering and handling transient high currents. To maintain optimal performance and longevity:
- Ensure adequate ventilation around the board, especially if operating at peak output power with a fan.
- Keep the board free from dust and debris. Use compressed air for cleaning if necessary.
- Avoid exposing the board to extreme temperatures or humidity.
- Handle the board with care to prevent physical damage to components or connections.
Figure 11: High Reliability and Stability Features
Resolució de problemes
- Sense sortida de so:
- Verify all power connections are secure and the power supply voltage es troba dins del rang especificat (12 V-30 V).
- Ensure the USB driver is correctly installed and updated (refer to Setup Instructions).
- Check the USB codec configuration for 7.1 surround sound.
- Confirm the audio source is playing a compatible 7.1 audio file and the music player supports 8-channel output.
- Inspect speaker connections for proper polarity and secure fit.
- Soroll del sòl:
- The 7.1 USB codec digital input is designed to avoid ground noise. If experiencing noise, ensure all connections are properly grounded and shielded.
- Check for loose connections or interference from other electronic devices.
- Incorrect Channel Output:
- Review the output configuration switches on the board to ensure they are set for the desired audio system (e.g., 7.1, 4.0).
- Test individual channels using a 7.1 test audio file.
- Sobreescalfament:
- Ensure the heatsink is clear of obstructions and has adequate airflow.
- If operating at peak power (8x100W), a fan is recommended for optimal heat dissipation.
- Reduce output power if persistent overheating occurs.
Consells per a l'usuari
- This product is an audio device with 8 channels, primarily designed for 7.1 surround sound applications.
- The 8 channels can be configured for various setups, including 7.1 surround sound, offering versatility for different audio needs.
- Considera la compraasing the matching cable package (AA-KA11111) for easier installation and optimal performance.
Garantia i Suport
The KAB9 amplifier board comes with a one-year free repair warranty. The buyer is responsible for shipping costs for repairs. After the repair is completed, the seller will cover the shipping cost to return the product to the buyer.
For any questions or issues, please contact customer support. Do not open a dispute without prior negotiation, as this may waive your right to after-sales service.
Contingut del paquet
- 1pc AA-KA32473, KAB9-850 AmpJunta més viva
- 1pc 8CH 7.1 USB Codec Input Module
Figure 12: KAB9 Package Contents
