Please kindly take the following steps to use this board.
1. Install the USB driver on your computer. You can download the driver below according to your system.
Win 7 / XP: link
2. Prepare an audio file which is in 7.1 format
3. Use a music player which supports 8 channel (7.1) audio file to play the prepared audio.
As an audio amplifier specially designed for game machine applications on the basis of standard products platform, WONDOM KAB9 inherits Sure Electronics consistent high reliability and high cost-performance. Fully taking customers’ requirements into consideration, we employ four AMP chip on KAB9 as 8 x 50W, all of which supports separate configuration into PBTL mode – 1 x 100W. That means KAB9 can be set as 8 x 50W for 7.1 audio system, 6 x 50W + 1 x 100W for 6.1/5.1 system, 4 x 50W + 2 x 100W for 4.2 system, 4 x 100W for 4.0 system and so on. Only one board can be configured for several applications, greatly improving system flexibility. The switching is conveniently achieved by the switches on the board, without any need of complex soldering. KAB9 is capable of delivering a peak output power of 8x 100W if it is equipped with a fan.
KAB9 supports differential input. In addition, KAB9 can support multiple input methods through connecting with an external plug-and-play module as a daughter board. We have released a 7.1 USB codec module for joint use with KAB9, which can avoid ground noise and ensure high quality audio playback. In future, we will develop various input module to extend more functions and possibilities with KAB9.
8CH 50W, suitable for 8.0/7.1/5.1/4.2/4.0 audio system
KAB9 is an 8-channel audio amplifier board, delivering 50W / 100W per channel. High output power and multichannel make JAB9 perfectly applicable to large-scale game machines, arcade equipment, race simulators and other industrial applications.
KAB9 supports PBTL configuration, which means that KAB9 can work as various output mode, like 8.0 mode (8x50W) for audio 8.0/7.1/6.2 system, 6.1 mode (6x50W+1x100W) for 6.0/5.1 system, 4.2 mode (4x50W+2x100W) for 4.2 system and 4.0 mode (4x100W) for 4.0 system.
8CH USB Codec Input
KAB9 can support multiple input methods through connecting with input modules as daughter board, which greatly improves system flexibility and expandability. We have released a 7.1 USB codec input module for joint use with KAB9, which is compatible with both Windows and Linux system. There is no need to worry about ground noise because of USB digital input. If you need analog input, differential input or other input methods, please feel free to contact us for further discussion.
High Reliability and Stability Verified by Strict Tests
We have carried out extremely strict test for KAB9 to ensure its reliability and stability. In addition to functional test and performance test, all KAB9 go through HALT and HASS test before storage. All the test data have been recorded to form test report. If you have special requirements on test, please contact us.
1pc AA-KA32473, KAB9-850
1pc 8CH 7.1 USB Codec
- Number Of Channel(s)8
- Output Power50
- Size6 x 4.5 inches (152.4mm x 114.3mm)
- Heat DissipationHeat Sink
- Supported Parallel Bridge Tied Load ModeYES
- Power Voltage12V-30V
- 8 x 50W Audio Amplifier
- Higher Output Power with Fan Installed (8 x 100W Peak)
- Independent PBTL/BTL Configuration of Four Stereo Amplifier Chips
- Supporting Multiple Output Modes as 8.0 / 6.1 / 4.2 / 4.0
- Supporting External Plug-and-Play Modules as Daughter Boards
- 7.1 USB Codec as Audio Input
- Five Level Gain Adjustable through Switch
- Shutdown, Mute and Synchronize Control
- Overcurrent Protection
- Weight: 168g/0.37lbs (±10%)
- Size: 6.0 x 4.5 x 1.8 inches
|Number of Channels||-||-||8||-||-|
|Minimum Load Impedance||-||3||4||-||Ω|
|Efficiency||8 x 50W@4Ohm, 1kHz||-||87||-||%|
|Nominal Power Requirement||@24V, 1kHz||-||400||-||W|
|Operating Voltage||@1kHz, 4Ohm||12||24||30||V|
|Idle Power||Signal detected||-||7.44||-||W|
|Switching Frequency||SD Floating@24V||-||400||-||kHz|
|Power Consumption||1/4 of max output power@4Ohm, 24V, 1kHz||-||118||-||W|
|1/8 of max output power@4Ohm, 24V, 1kHz||-||60||-||W|
|Control||Shutdown (Low = inputs enabled)||High-level Input Voltage||3.3||-||-||V|
|Low-level Input Voltage||-||-||0.8||V|
|Mute (High = outputs enabled)||High-level Output Voltage||3.3||V|
|Low-level Output Voltage||-||-||0.8||V|
|Standby Power||SD short to GND, only when low power module available||-||240||-||mW|
|Amp Gain||SW1: 1-4, OFF||-||31||-||dB|
|SW1: 1, ON; Others: OFF||-||35.8||-||dB|
|SW1: 2, ON; Others: OFF||-||33.3||-||dB|
|SW1: 3, ON; Others: OFF||-||29.8||-||dB|
|SW1: 4, ON; Others: OFF||-||23.8||-||dB|
|Input Sensitivity||8 x 50W@4Ohm, 1kHz, 26dB||-||460||-||mV|
|SNR||8 x 50W@4Ohm, THD+N=1%, 26dB, A-weighting||-||91||-||dB|
|THD+N||5W@4Ohm, 1kHz, 24dB / CH||-||0.03||-||%|
|10W@4Ohm, 1kHz, 24dB / CH||-||0.04||-||%|
|Output Noise Level||A-weighting, Input Connected to GND, 26dB||-||340||-||uV|