KEYFEATURES

  • 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










DESCRIPTION

Please kindly take the following steps to use this board.
1. Install the USB driver on your computer. You can download the driver in the 'Files&Videos' section.
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.
7.1 USB Codec Digital 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
We prioritize reliability and stability in our products designed for industrial applications. To achieve this, we integrate industrial-grade components on KAB9 such as robust heatsinks for effective heat dissipation, high-performance capacitors for filtering and energy storage for handling transient high current. Our strict testing process includes functional and performance testing, as well as HALT and HASS testing before storage. We also maintain detailed test reports for all KAB9 products. If you have any specific testing requirements, please feel free to contact us.
Package Include
1pc AA-KA32473, KAB9-850
1pc 8CH 7.1 USB Codec Input Module

SPECIFICATION

Specifications typical @ +25℃, unless otherwise noted. Specifications subject to change without notice.
ParameterConditionsMin.Typ.Max.Units
Number of Channels--8--
Minimum Load Impedance-34-Ω
Efficiency8 x 50W@4Ohm, 1kHz-87-%
Nominal Power Requirement@24V, 1kHz-400-W
Operating Voltage@1kHz, 4Ohm122430V
Idle PowerSignal detected-7.44-W
Switching FrequencySD Floating@24V-400-kHz
Power Consumption1/4 of max output power@4Ohm, 24V, 1kHz-118-W
1/8 of max output power@4Ohm, 24V, 1kHz-60-W
 ControlShutdown (Low = inputs enabled)High-level Input Voltage3.3--V
Low-level Input Voltage--0.8V
Mute (High = outputs enabled)High-level Output Voltage                                                         3.3  V
Low-level Output Voltage--0.8V
Standby PowerSD short to GND, only when low power module available-240-mW
ParameterConditionsMin.Typ.Max.Units
Amp GainSW1: 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 Sensitivity8 x 50W@4Ohm, 1kHz, 26dB-460-mV
SNR8 x 50W@4Ohm, THD+N=1%, 26dB, A-weighting-91-dB
THD+N5W@4Ohm, 1kHz, 24dB / CH-0.03-%
10W@4Ohm, 1kHz, 24dB / CH-0.04-%
Input Impedance--10-kΩ
Output Noise LevelA-weighting, Input Connected to GND, 26dB-340-uV
DC Offset--10-mV

PERFORMANCE

[AA-KA32473] 8 x 50W 6.1, 4.2, 4.0 Configurable USB Codec Input Audio Amplifier Board for Kiosk - KAB9 performance
[AA-KA32473] 8 x 50W 6.1, 4.2, 4.0 Configurable USB Codec Input Audio Amplifier Board for Kiosk - KAB9 performance
[AA-KA32473] 8 x 50W 6.1, 4.2, 4.0 Configurable USB Codec Input Audio Amplifier Board for Kiosk - KAB9 performance
[AA-KA32473] 8 x 50W 6.1, 4.2, 4.0 Configurable USB Codec Input Audio Amplifier Board for Kiosk - KAB9 performance









































CONNECTION

[AA-KA32473] 8 x 50W 6.1, 4.2, 4.0 Configurable USB Codec Input Audio Amplifier Board for Kiosk - KAB9 connection